The objective of the present study was to better understand the potential environmental benefit of using vine shoots (ViShs), an agricultural residue, as filler in composite materials. For that purpose, a comparative life cycle assessment (LCA) of a rigid tray made of virgin poly(3-hydroxybutyrate-co-3-hydroxyvalerate) PHBV, polylactic acid (PLA) or polypropylene (PP), and increasing content of ViSh particles was performed. The contribution of each processing step in the life cycle on the different environmental impacts was identified and discussed. Furthermore, the balance between the environmental and the economic benefits of composite trays was discussed.
MethodsThis work presents a cradle-to-grave LCA of composite rigid trays. Once collected in vineyards, ViShs were dried and ground using dry fractionation processes, then mixed with a polymer matrix by melt extrusion to produce compounds that were finally injected to obtain rigid trays for food packaging. The density of each component was taken into account in order to compare trays with the same volume. The maximum filler content was set to 30 vol% according to recommendations from literature and industrial data. The ReCiPe 2016 Midpoint Hierarchist (H) methodology was used for the assessment using the cutoff system model.
Results and discussionThis study showed that bioplastics are currently less eco-friendly than PP. This is in part due to the fact that LCA does not account for, in existing tools, effects of microplastic accumulation and that bioplastic technologies are still under development with low tonnage. This study also demonstrated the environmental interest of the development of biocomposites by the incorporation of ViSh particles. The minimal filler content of interest depended on the matrices and the impact categories. Concerning global warming, composite trays had less impact than virgin plastic trays from 5 vol% for PHBV or PLA and from 20 vol% for PP. Concerning PHBV, the only biodegradable polymer in natural conditions in this study, the price and the impact on global warming are reduced by 25% and 20% respectively when 30 vol% of ViSh are added.
ConclusionThe benefit of using vine shoots in composite materials from an environmental and economical point of view was demonstrated. As a recommendation, the polymer production step, which constitutes the most important impact, should be optimized and the maximum filler content in composite materials should be increased.
", "keywords": ["2. Zero hunger", "660", "Biomateriau", "Extrusion", "600", "02 engineering and technology", "[SDV.IDA] Life Sciences [q-bio]/Food engineering", "/dk/atira/pure/sustainabledevelopmentgoals/responsible_consumption_and_production; name=SDG 12 - Responsible Consumption and Production", "01 natural sciences", "12. Responsible consumption", "Life cycle assessment", "Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)", "/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy; name=SDG 7 - Affordable and Clean Energy", "Packaging", "13. Climate action", "[SDV.IDA]Life Sciences [q-bio]/Food engineering", "8. Economic growth", "Emballage alimentaire", "/dk/atira/pure/sustainabledevelopmentgoals/climate_action; name=SDG 13 - Climate Action", "Vine shoots", "0210 nano-technology", "Biocomposite", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1007/s11367-020-01824-7.pdf"}, {"href": "https://doi.org/10.1007/s11367-020-01824-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/The%20International%20Journal%20of%20Life%20Cycle%20Assessment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11367-020-01824-7", "name": "item", "description": "10.1007/s11367-020-01824-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11367-020-01824-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-10-09T00:00:00Z"}}, {"id": "10.1007/s00442-003-1329-x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:14:49Z", "type": "Journal Article", "created": "2003-11-21", "title": "Effects Of Earthworms And Organic Litter Distribution On Plant Performance And Aphid Reproduction", "description": "Human management practices and large detritivores such as earthworms incorporate plant litter into the soil, thereby forming a heterogeneous soil environment from which plant roots extract nutrients. In a greenhouse experiment we investigated effects of earthworms and spatial distribution of (15)N-labelled grass litter on plants of different functional groups [ Lolium perenne (grass), Plantago lanceolata (forb), Trifolium repens (legume)]. Earthworms enhanced shoot and root growth in L. perenne and P. lanceolata and N uptake from organic litter and soil in all plant species. Litter concentrated in a patch (compared with litter mixed homogeneously into the soil) increased shoot biomass and (15)N uptake from the litter in L. perenne and enhanced root proliferation in P. lanceolata when earthworms were present. Growth of clover (T. repens) was rather independent of the presence of earthworms and organic litter distribution: nevertheless, clover took up more nitrogen in the presence of earthworms and exploited more (15)N from the added litter than the other plant species. The magnitude of the effects of earthworms and organic litter distribution differed between the plant species, indicating different responses of plants with contrasting root morphology. Aphid (Myzus persicae) reproduction was reduced on P. lanceolata in the presence of earthworms. We suggest that earthworm activity may indirectly alter plant chemistry and hence defence mechanisms against herbivores.", "keywords": ["0106 biological sciences", "2. Zero hunger", "Nitrogen Radioisotopes", "Nitrogen", "Fabaceae", "04 agricultural and veterinary sciences", "Plants", "15. Life on land", "Poaceae", "Plant Roots", "01 natural sciences", "Aphids", "Animals", "0401 agriculture", " forestry", " and fisheries", "Oligochaeta", "Plantago", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1007/s00442-003-1329-x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-003-1329-x", "name": "item", "description": "10.1007/s00442-003-1329-x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-003-1329-x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-09-01T00:00:00Z"}}, {"id": "10.1007/s00442-005-0109-1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:14:49Z", "type": "Journal Article", "created": "2005-07-07", "title": "Plant N Capture From Pulses: Effects Of Pulse Size, Growth Rate, And Other Soil Resources", "description": "In arid ecosystems, the ability to rapidly capture nitrogen (N) from brief pulses is expected to influence plant growth, survival, and competitive ability. Theory and data suggest that N capture from pulses should depend on plant growth rate and availability of other limiting resources. Theory also predicts trade-offs in plant stress tolerance and ability to capture N from different size pulses. We injected K15NO3, to simulate small and large N pulses at three different times during the growing season into soil around the co-dominant Great Basin species Sarcobatus vermiculatus, Chrysothamnus nauseosus ssp. consimilis, and Distichlis spicata. Soils were amended with water and P in a partial factorial design. As predicted, all study species showed a comparable decline in N capture from large pulses through the season as growth rates slowed. Surprisingly, however, water and P availability differentially influenced the ability of these species to capture N from pulses. Distichlis N capture increased up to tenfold with water addition while Chrysothamnus N capture increased up to threefold with P addition. Sarcobatus N capture was not affected by water or P availability. Opposite to our prediction, Sarcobatus, the most stress tolerant species, captured less N from small pulses but more N from large pulses relative to the other species. These observations suggest that variation in N pulse timing and size can interact with variable soil water and P supply to determine how N is partitioned among co-existing Great Basin species.", "keywords": ["2. Zero hunger", "0106 biological sciences", "Nitrates", "Time Factors", "Nitrogen Isotopes", "Nitrogen", "Potassium Compounds", "Water", "Phosphorus", "15. Life on land", "Plant Roots", "01 natural sciences", "California", "Plant Leaves", "Magnoliopsida", "Soil", "Seasons", "Plant Shoots"], "contacts": [{"organization": "Jeremy J. James, James H. Richards,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s00442-005-0109-1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-005-0109-1", "name": "item", "description": "10.1007/s00442-005-0109-1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-005-0109-1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-07-08T00:00:00Z"}}, {"id": "10.1007/s00442-006-0515-z", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:14:49Z", "type": "Journal Article", "created": "2006-08-23", "title": "Aboveground Productivity And Root-Shoot Allocation Differ Between Native And Introduced Grass Species", "description": "Plant species in grasslands are often separated into groups (C(4) and C(3) grasses, and forbs) with presumed links to ecosystem functioning. Each of these in turn can be separated into native and introduced (i.e., exotic) species. Although numerous studies have compared plant traits between the traditional groups of grasses and forbs, fewer have compared native versus introduced species. Introduced grass species, which were often introduced to prevent erosion or to improve grazing opportunities, have become common or even dominant species in grasslands. By virtue of their abundances, introduced species may alter ecosystems if they differ from natives in growth and allocation patterns. Introduced grasses were probably selected nonrandomly from the source population for forage (aboveground) productivity. Based on this expectation, aboveground production is predicted to be greater and root mass fraction to be smaller in introduced than native species. We compared root and shoot distribution and tissue quality between introduced and native C(4) grass species in the Blackland Prairie region of Central Texas, USA, and then compared differences to the more well-studied divergence between C(4) grasses and forbs. Comparisons were made in experimental monocultures planted with equal-sized transplants on a common soil type and at the same density. Aboveground productivity and C:N ratios were higher, on average, in native grasses than in native forbs, as expected. Native and introduced grasses had comparable amounts of shallow root biomass and tissue C:N ratios. However, aboveground productivity and total N were lower and deep root biomass and root mass fraction were greater in native than introduced grasses. These differences in average biomass distribution and N could be important to ecosystems in cases where native and introduced grasses have been exchanged. Our results indicate that native-introduced status may be important when interpreting species effects on grassland processes like productivity and plant N accumulation.", "keywords": ["580", "0106 biological sciences", "2. Zero hunger", "570", "Invasive species", "Nitrogen", "Exotic species", "Root biomass", "04 agricultural and veterinary sciences", "15. Life on land", "Poaceae", "Texas", "Plant Roots", "01 natural sciences", "Carbon", "Introduced species", "Grasslands", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Agricultural Science", "Tallgrass prairie", "Ecosystem", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1007/s00442-006-0515-z"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-006-0515-z", "name": "item", "description": "10.1007/s00442-006-0515-z", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-006-0515-z"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-08-23T00:00:00Z"}}, {"id": "10.1007/s11356-013-2321-6", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:15:22Z", "type": "Journal Article", "created": "2013-12-02", "title": "Interactive Effects Of Different Inorganic As And Se Species On Their Uptake And Translocation By Rice (Oryza Sativa L.) Seedlings", "description": "There is a lack of information on the interactive relationship of absorption and transformation between two inorganic arsenic (As) species and two inorganic selenium (Se) species in rice grown under hydroponic condition. Interactive effects of inorganic As (As(III)) and (As(V)) and Se (Se(IV)and Se(VI)) species on their uptake, accumulation, and translocation in rice (Oryza sativa L.) seedlings were investigated in hydroponic culture. The results clearly showed the interactive effects of inorganic As and Se on their uptake by rice. The presence of Se reduced the sum of As species in the rice shoots regardless of Se speciation. If Se is present as Se(IV), then is it is accompanied by a corresponding increase of the sum of As species, but if Se is present as Se(VI), then there is no change in the sum of As species in rice roots. These effects are observed regardless of initial As speciation. When the rice plants are exposed to Se(IV), the presence of As increases the sum of Se species in the roots, and decreases the sum of Se species in the corresponding shoots. This effect is more pronounced for As(III) than for As(V). There is no effect on Se during exposure to Se(VI). Co-existence of As also increased SeMet in rice roots.", "keywords": ["0106 biological sciences", "Oryza", "04 agricultural and veterinary sciences", "Plant Roots", "01 natural sciences", "Arsenic", "Selenium", "Hydroponics", "Seedlings", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Drug Interactions", "Environmental Pollutants", "Plant Shoots"], "contacts": [{"organization": "Yi-Zong Huang, Gui-Lan Duan, Yunxia Liu, Ying Hu, Guo-Xin Sun,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s11356-013-2321-6"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%20and%20Pollution%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11356-013-2321-6", "name": "item", "description": "10.1007/s11356-013-2321-6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11356-013-2321-6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-12-03T00:00:00Z"}}, {"id": "10.1016/j.envpol.2005.03.013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:13Z", "type": "Journal Article", "created": "2005-07-06", "title": "Effect Of Soil Characteristics On Cd Uptake By The Hyperaccumulator Thlaspi Caerulescens", "description": "The influence of soil characteristics on the phytoremediation potential of Thlaspi caerulescens is not well understood. We investigated the effect of soil pH and Cd concentration on plant Cd uptake on one soil type, and the variation in Cd uptake using a range of field contaminated soils. On soils with total Cd concentrations of 0.6-3.7 mg kg(-1), T. caerulescens (the Ganges ecotype) produced greater biomass in the pH range 5.1-7.6 than at pH 4.4. The highest plant Cd concentration (236 mg kg(-1)) and Cd uptake (228 microg pot(-1)) were observed at pH 5.1. On soils with total Cd concentrations of 2.6-314.8 mg kg(-1), shoot Cd concentrations were 10.9-1,196 mg kg(-1). Multiple regression analysis indicated that higher Cd in soil, low pH (within the range of >5) and coarser texture were associated with higher Cd concentration and Cd uptake by T. caerulescens.", "keywords": ["04 agricultural and veterinary sciences", "Hydrogen-Ion Concentration", "15. Life on land", "01 natural sciences", "Carbon", "6. Clean water", "Thlaspi", "Soil", "Zinc", "Clay", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Aluminum Silicates", "Biomass", "Plant Shoots", "Cadmium", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2005.03.013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2005.03.013", "name": "item", "description": "10.1016/j.envpol.2005.03.013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2005.03.013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-01-01T00:00:00Z"}}, {"id": "10.1016/j.chemosphere.2009.01.042", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:00Z", "type": "Journal Article", "created": "2009-02-16", "title": "Effects Of Earthworms On Metal Uptake Of Heavy Metals From Polluted Mine Soils By Different Crop Plants", "description": "A pot experiment was conducted in order to assess the effect of the earthworm Eisenia fetida on the uptake of Pb, Zn, Cd and Cu from soils polluted by mining activities using maize (Zea mays) and barley (Hordeum vulgare). Results from single and sequential extractions showed that the soil chemical partitioning of heavy metals was significantly changed by E. fetida, leading to a higher concentration of metals in the non-residual fractions of the soil. Earthworm activities significantly increased shoot biomass (65% for maize and 73% for barley) and root metal concentration for all the metals under study in both maize and barley. The total accumulation rate values for Cd, Cu, Pb and Zn were significantly higher in the presence of E. fetida for both crop plants. Those latter effects led to an increase in Zn extraction yields of up to 3.7-fold and 2.3-fold for barley and maize, respectively.", "keywords": ["2. Zero hunger", "Hordeum", "04 agricultural and veterinary sciences", "Chemical Fractionation", "Plant Roots", "Zea mays", "01 natural sciences", "Mining", "Biodegradation", " Environmental", "13. Climate action", "Metals", " Heavy", "Animals", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Oligochaeta", "Plant Shoots", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.chemosphere.2009.01.042"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Chemosphere", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.chemosphere.2009.01.042", "name": "item", "description": "10.1016/j.chemosphere.2009.01.042", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.chemosphere.2009.01.042"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-05-01T00:00:00Z"}}, {"id": "10.1016/j.chemosphere.2009.11.015", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:00Z", "type": "Journal Article", "created": "2009-12-17", "title": "Selenium Accumulation By Forage And Grain Crops And Volatilization From Seleniferous Soils Amended With Different Organic Materials", "description": "Greenhouse and field experiments were conducted to study the direct and residual effect of applying different organic materials on Se accumulation by crops and volatilization from seleniferous soils of northwestern India. Among organic manures, press mud and poultry manures proved 4-5 times more effective in reducing Se accumulation by different crops than farmyard manure. Efficiency of organic manures increased with increase in application rates. Application of both press mud and poultry manures reduced Se accumulation by 44-97% in wheat (Triticum aestivum) and rapeseed (Brassica napus) shoots in the greenhouse; 85-92% in wheat straw, 45-74% in wheat grains, 45-74% in rapeseed straw and 76-92% in rapeseed grains under field conditions. Both the manures remained highly effective in reducing Se accumulation by the crops following wheat and rapeseed and the extent of reduction varied from 50% to 87% in maize (Zea mays) and cowpeas (Vigna sinensis) in the greenhouse and 40-89% in maize and rice (Oryza sativa) crops under field situation. Rate of Se volatilization by wheat and rapeseed crops increased by 1.8-4.0 times; the greatest increase was observed with press mud followed by poultry manure, arhar (Cajanus cajan) leaves and farmyard manure. After 134d of incubation of 500g soil amended with 2% of plant tissues, the maximum amount of Se was volatilized with cowpea leaves (385ng) followed by wheat grains, leaves of maize, sugarcane (Saccharum officcinarum), arhar, poplar (Populus deltoides) and the control (91ng). The results of this study convincingly prove the usefulness of applying press mud and poultry manure in enhancing volatilization and retarding the transfer of Se from soil to plant in seleniferous soils.", "keywords": ["Crops", " Agricultural", "2. Zero hunger", "04 agricultural and veterinary sciences", "15. Life on land", "Zea mays", "01 natural sciences", "6. Clean water", "Manure", "Plant Leaves", "Selenium", "Seeds", "Animals", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Volatilization", "Plant Shoots", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.chemosphere.2009.11.015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Chemosphere", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.chemosphere.2009.11.015", "name": "item", "description": "10.1016/j.chemosphere.2009.11.015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.chemosphere.2009.11.015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-01-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2006.03.003", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:13Z", "type": "Journal Article", "created": "2006-05-09", "title": "Effect Of Submergence-Emergence Sequence And Organic Matter Or Aluminosilicate Amendment On Metal Uptake By Woody Wetland Plant Species From Contaminated Sediments", "description": "Site-specific hydrological conditions affect the availability of trace metals for vegetation. In a greenhouse experiment, the effect of submersion on the metal uptake by the wetland plant species Salix cinerea and Populus nigra grown on a contaminated dredged sediment-derived soil and on an uncontaminated soil was evaluated. An upland hydrological regime for the polluted sediment caused elevated Cd concentrations in leaves and cuttings for both species. Emergence and soil oxidation after initial submersion of a polluted sediment resulted in comparable foliar Cd and Zn concentrations for S. cinerea as for the constant upland treatment. The foliar Cd and Zn concentrations were clearly higher than for submerged soils after initial upland conditions. These results point at the importance of submergence-emergence sequence for plant metal availability. The addition of foliar-based organic matter or aluminosilicates to the polluted sediment-derived soil in upland conditions did not decrease Cd and Zn uptake by S. cinerea.", "keywords": ["Geologic Sediments", "Biological Availability", "Water", "Salix", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "Plant Leaves", "Zinc", "Populus", "13. Climate action", "Metals", " Heavy", "Immersion", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Aluminum Silicates", "Seasons", "Oxidation-Reduction", "Ecosystem", "Plant Shoots", "Cadmium", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2006.03.003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2006.03.003", "name": "item", "description": "10.1016/j.envpol.2006.03.003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2006.03.003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-01-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2006.06.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:13Z", "type": "Journal Article", "created": "2006-09-29", "title": "Growth Of Lygeum Spartum In Acid Mine Tailings: Response Of Plants Developed From Seedlings, Rhizomes And At Field Conditions", "description": "Lygeum spartum is a native species in semiarid Mediterranean areas that grows spontaneously on acid mine tailings. We aimed to study the suitability of this plant for phytostabilization. L. spartum was grown from both seeds and rhizomes in acid mine tailings with various fertilizer and lime treatments. Untreated soils had a solution pH of 2.9 with high concentrations of dissolved salts (Electrical Conductivity 25 dS m(-1)) and Zn (3100 mg L(-1)). Plants grown on untreated soil had high shoot metal concentrations (>4000 mg kg(-1)Zn). Liming increased the solution pH to 5.5 and reduced the dissolved salts by more than 75%, resulting in lower shoot metal accumulation. Plants grown from rhizomes accumulated less metal than those grown from seeds. Plants collected in the field had metal concentrations an order of magnitude less than plants raised in the growth chamber. These differences may be due to the higher moisture content and homogeneous nature of the soils used in the pot experiment.", "keywords": ["Anions", "Waste Products", "Oxides", "04 agricultural and veterinary sciences", "Calcium Compounds", "Hydrogen-Ion Concentration", "15. Life on land", "Poaceae", "Plant Roots", "01 natural sciences", "Mining", "Plant Leaves", "Soil", "Zinc", "Seedlings", "Cations", "Metals", " Heavy", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Fertilizers", "Plant Shoots", "Rhizome", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2006.06.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2006.06.002", "name": "item", "description": "10.1016/j.envpol.2006.06.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2006.06.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-02-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2006.10.013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:13Z", "type": "Journal Article", "created": "2006-12-01", "title": "Behavior Of Trifolium Repens And Lolium Perenne Growing In A Heavy Metal Contaminated Field: Plant Metal Concentration And Phytotoxicity", "description": "The use of a vegetation cover for the management of heavy metal contaminated soils needs prior investigations on the plant species the best sustainable. In this work, behaviors of Trifolium repens and Lolium perenne, growing in a metal-polluted field located near a closed lead smelter, were investigated through Cd, Pb and Zn-plant metal concentrations and their phytotoxicity. In these plant species, metals were preferentially accumulated in roots than in shoots, as follow: Cd>Zn>Pb. Plant exposure to such metals induced oxidative stress in the considered organs as revealed by the variations in malondialdehyde levels and superoxide dismutase activities. These oxidative changes were closely related to metal levels, plant species and organs. Accordingly, L. perenne seemed to be more affected by metal-induced oxidative stress than T. repens. Taken together, these findings allow us to conclude that both the plant species could be suitable for the phytomanagement of metal-polluted soils.", "keywords": ["Superoxide Dismutase", "Environmental Exposure", "04 agricultural and veterinary sciences", "15. Life on land", "Plant Roots", "01 natural sciences", "Oxidative Stress", "Soil", "Zinc", "Biodegradation", " Environmental", "Lead", "Malondialdehyde", "Metals", " Heavy", "Lolium", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Trifolium", "Plant Shoots", "Cadmium", "Environmental Monitoring", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2006.10.013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2006.10.013", "name": "item", "description": "10.1016/j.envpol.2006.10.013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2006.10.013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-06-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2008.05.029", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:13Z", "type": "Journal Article", "created": "2008-07-22", "title": "Feasibility Of Phytoextraction To Remediate Cadmium And Zinc Contaminated Soils", "description": "A Cd and Zn contaminated soil was mixed and equilibrated with an uncontaminated, but otherwise similar soil to establish a gradient in soil contamination levels. Growth of Thlaspi caerulescens (Ganges ecotype) significantly decreased the metal concentrations in soil solution. Plant uptake of Cd and Zn exceeded the decrease of the soluble metal concentrations by several orders of magnitude. Hence, desorption of metals must have occurred to maintain the soil solution concentrations. A coupled regression model was developed to describe the transfer of metals from soil to solution and plant shoots. This model was applied to estimate the phytoextraction duration required to decrease the soil Cd concentration from 10 to 0.5 mg kg(-1). A biomass production of 1 and 5 t dm ha(-1) yr(-1) yields a duration of 42 and 11 yr, respectively. Successful phytoextraction operations based on T. caerulescens require an increased biomass production.", "keywords": ["Time Factors", "Industrial Waste", "phytoremediation", "01 natural sciences", "metal-accumulating plants", "Soil", "hyperaccumulator thlaspi-caerulescens", "heavy-metals", "sandy soil", "Life Science", "Soil Pollutants", "Biomass", "0105 earth and related environmental sciences", "polluted soils", "04 agricultural and veterinary sciences", "field", "6. Clean water", "cd", "Thlaspi", "Zinc", "Biodegradation", " Environmental", "zn", "Feasibility Studies", "0401 agriculture", " forestry", " and fisheries", "rhizosphere", "Plant Shoots", "Cadmium"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2008.05.029"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2008.05.029", "name": "item", "description": "10.1016/j.envpol.2008.05.029", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2008.05.029"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-12-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2010.11.032", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:14Z", "type": "Journal Article", "created": "2010-12-29", "title": "Lumbricus Terrestris L. Activity Increases The Availability Of Metals And Their Accumulation In Maize And Barley", "description": "The effect of the earthworm Lumbricus terrestris L. on metal availability in two mining soils was assessed by means of chemical extraction methods and a pot experiment using crop plants. Results from single and sequential extractions showed that L. terrestris had a slight effect on metal fractionation in the studied soils: only metals bound to the soil organic matter were significantly increased in some cases. However, we found that L. terrestris significantly increased root, shoot and total Pb and Zn concentrations in maize and barley for the soil with the highest concentrations of total and available metals. Specifically, shoot Pb concentration was increased by a factor of 7.5 and 3.9 for maize and barley, respectively, while shoot Zn concentration was increased by a factor of 3.7 and 1.7 for maize and barley, respectively. Our results demonstrated that earthworm activity increases the bioavailability of metals in soils.", "keywords": ["2. Zero hunger", "Hordeum", "04 agricultural and veterinary sciences", "Chemical Fractionation", "15. Life on land", "Plant Roots", "Zea mays", "01 natural sciences", "Mining", "Soil", "Zinc", "Biodegradation", " Environmental", "Lead", "Spain", "Animals", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Oligochaeta", "Plant Shoots", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2010.11.032"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2010.11.032", "name": "item", "description": "10.1016/j.envpol.2010.11.032", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2010.11.032"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-03-01T00:00:00Z"}}, {"id": "10.1016/j.tplants.2021.03.005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:22Z", "type": "Journal Article", "created": "2021-04-22", "title": "How roots and shoots communicate through stressful times", "description": "When plants face an environmental stress such as water deficit, soil salinity, high temperature, or shade, good communication between above- and belowground organs is necessary to coordinate growth and development. Various signals including hormones, peptides, proteins, hydraulic signals, and metabolites are transported mostly through the vasculature to distant tissues. How shoots and roots synchronize their response to stress using mobile signals is an emerging field of research. We summarize recent advances on mobile signals regulating shoot stomatal movement and root development in response to highly localized environmental cues. In addition, we highlight how the vascular system is not only a conduit but is also flexible in its development in response to abiotic stress.", "keywords": ["0301 basic medicine", "0303 health sciences", "abiotic stress", "root growth", "Water", "15. Life on land", "stomatal closure", "Plant Roots", "mobile signals", "root vasculature plasticity", "Soil", "03 medical and health sciences", "Stress", " Physiological", "shoot\u2013root communication", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1016/j.tplants.2021.03.005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Trends%20in%20Plant%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.tplants.2021.03.005", "name": "item", "description": "10.1016/j.tplants.2021.03.005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.tplants.2021.03.005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-09-01T00:00:00Z"}}, {"id": "10.1038/s41598-018-36294-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:52Z", "type": "Journal Article", "created": "2018-12-11", "title": "Decomposer diversity increases biomass production and shifts aboveground-belowground biomass allocation of common wheat", "description": "AbstractBiodiversity is well known to enhance many ecosystem functions, but empirical evidence for the role of soil biodiversity for plant biomass production and allocation is scarce. Here we studied the effects of animal decomposer diversity (1, 2, and 4 species as well as a control without any decomposers) on the biomass production and aboveground-belowground biomass allocation of common wheat using two earthworm and two Collembola species using an additive design in two soil management types (organic and mineral fertilizer treatments) in a microcosm experiment. Shoot (+11%), spike (+7%), and root biomass (+56%), increased significantly with increasing decomposer diversity, and these effects were consistent across the two soil management types. Notably, decomposer diversity effects were stronger on root than on shoot biomass, significantly decreasing the shoot-to-root ratio (\uffe2\uff88\uff9227%). Increased plant biomass production was positively correlated with a decomposer richness-induced increase in soil water nitrate concentrations five weeks after the start of the experiment. However, elevated soil nitrate concentrations did not cause significantly higher plant tissue nitrogen concentrations and nitrogen amounts, suggesting that additional mechanisms might be at play. Consistent decomposer diversity effects across soil management types indicate that maintaining soil biodiversity is a robust and sustainable strategy to enhance crop yield.
", "keywords": ["0301 basic medicine", "2. Zero hunger", "570", "0303 health sciences", "Nitrogen", "Water", "Biodiversity", "15. Life on land", "Plant Roots", "7. Clean energy", "Article", "Resource Allocation", "Soil", "03 medical and health sciences", "Animals", "Biomass", "Oligochaeta", "Ecosystem", "Plant Shoots", "Triticum"]}, "links": [{"href": "https://www.nature.com/articles/s41598-018-36294-3.pdf"}, {"href": "https://doi.org/10.1038/s41598-018-36294-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientific%20Reports", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41598-018-36294-3", "name": "item", "description": "10.1038/s41598-018-36294-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41598-018-36294-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-12-17T00:00:00Z"}}, {"id": "10.1093/treephys/23.12.805", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:28Z", "type": "Journal Article", "created": "2012-01-20", "title": "Free-Air Co2 Enrichment (Face) Enhances Biomass Production In A Short-Rotation Poplar Plantation", "description": "This paper investigates the possible contribution of Short Rotation Cultures (SRC) to carbon sequestration in both current and elevated atmospheric CO2 concentrations ([CO2]). A dense poplar plantation (1 x 1 m) was exposed to a [CO2] of 550 ppm in Central Italy using the free-air CO2 enrichment (FACE) technique. Three species of Populus were examined, namely P. alba L., P. nigra L. and P. x euramericana Dode (Guinier). Aboveground woody biomass of trees exposed to elevated [CO2] for three growing seasons increased by 15 to 27%, depending on species. As a result, light-use efficiency increased. Aboveground biomass allocation was unaffected, and belowground biomass also increased under elevated [CO2] conditions, by 22 to 38%. Populus nigra, with total biomass equal to 62.02 and 72.03 Mg ha-1 in ambient and elevated [CO2], respectively, was the most productive species, although its productivity was stimulated least by atmospheric CO2 enrichment. There was greater depletion of inorganic nitrogen from the soil after three growing seasons in elevated [CO2], but no effect of [CO2] on stem wood density, which differed significantly only among species.", "keywords": ["soil n-availability", "0106 biological sciences", "Physiology", "pinus-sylvestris", "fine roots", "hybrid poplar", "Plant Science", "Plant Roots", "01 natural sciences", "7. Clean energy", "Trees", "light-use efficiency", "carbon-dioxide enrichment", "Biomass", "Photosynthesis", "elevated atmospheric co2", "crown architecture", "net primary production", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Populus", "13. Climate action", "populus-grandidentata", "0401 agriculture", " forestry", " and fisheries", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1093/treephys/23.12.805"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/23.12.805", "name": "item", "description": "10.1093/treephys/23.12.805", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/23.12.805"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-08-01T00:00:00Z"}}, {"id": "10.1093/aob/mcr082", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:24Z", "type": "Journal Article", "created": "2011-04-14", "title": "Leaf Traits, Shoot Growth And Seed Production In Mature Fagus Sylvatica Trees After 8 Years Of Co2 Enrichment", "description": "Masting, i.e. synchronous but highly variable interannual seed production, is a strong sink for carbon and nutrients. It may, therefore, compete with vegetative growth. It is currently unknown whether increased atmospheric CO(2) concentrations will affect the carbon balance (or that of other nutrients) between reproduction and vegetative growth of forest species. In this study, reproduction and vegetative growth of shoots of mature beech (Fagus sylvatica) trees grown at ambient and elevated atmospheric CO(2) concentrations were quantified. It was hypothesized that within a shoot, fruiting has a negative effect on vegetative growth, and that this effect is ameliorated at increased CO(2) concentrations.Reproduction and its competition with leaf and shoot production were examined during two masting events (in 2007 and 2009) in F. sylvatica trees that had been exposed to either ambient or elevated CO(2) concentrations (530 \u00b5mol mol(-1)) for eight consecutive years, between 2000 and 2008.The number of leaves per shoot and the length of terminal shoots was smaller or shorter in the two masting years compared with the one non-masting year (2008) investigated, but they were unaffected by elevated CO(2) concentrations. The dry mass of terminal shoots was approx. 2-fold lower in the masting year (2007) than in the non-masting year in trees growing at ambient CO(2) concentrations, but this decline was not observed in trees exposed to elevated CO(2) concentrations. In both the CO(2) treatments, fruiting significantly decreased nitrogen concentration by 25 % in leaves and xylem tissue of 1- to 3-year-old branches in 2009.Our findings indicate that there is competition for resources between reproduction and shoot growth. Elevated CO(2) concentrations reduced this competition, indicating effects on the balance of resource allocation between reproduction and vegetative growth in shoots with rising atmospheric CO(2) concentrations.", "keywords": ["0106 biological sciences", "Time Factors", "Nitrogen", "Reproduction", "Carbon Dioxide", "15. Life on land", "01 natural sciences", "Carbon", "Trees", "Plant Leaves", "Xylem", "13. Climate action", "Fruit", "Seeds", "Fagus", "Plant Shoots", "Switzerland"], "contacts": [{"organization": "Han, Qingmin, Kabeya, Daisuke, Hoch, G\u00fcnter,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1093/aob/mcr082"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Annals%20of%20Botany", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/aob/mcr082", "name": "item", "description": "10.1093/aob/mcr082", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/aob/mcr082"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-04-14T00:00:00Z"}}, {"id": "10.1093/jxb/erx494", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:26Z", "type": "Journal Article", "created": "2018-01-12", "title": "Strigolactones: mediators of osmotic stress responses with a potential for agrochemical manipulation of crop resilience", "description": "After quickly touching upon general aspects of strigolactone biology and functions, including structure, synthesis, and perception, this review focuses on the role and regulation of the strigolactone pathway during osmotic stress, in light of the most recent research developments. We discuss available data on organ-specific dynamics of strigolactone synthesis and interaction with abscisic acid in the acclimatization response, with emphasis on the ecophysiological implications of the effects on the stomatal closure process. We highlight the importance of considering roots and shoots separately as well as combined versus individual stress treatments; and of performing reciprocal grafting experiments to work out organ contributions and long-distance signalling events and components under more realistic conditions. Finally, we elaborate on the question of if and how synthetic or natural strigolactones, alone or in combination with crop management strategies such as grafting, hold potential to maximize crop resilience to abiotic stresses.", "keywords": ["Crops", " Agricultural", "2. Zero hunger", "0301 basic medicine", "0303 health sciences", "Abscisic acid", " Drought", " Hormone cross-talk", " Osmotic stress", " Resilience", " Root-shoot communication", " Stomata closure", " Strigolactones", "Abscisic acid; Drought; Hormone crosstalk; Osmotic stress; Resilience; Root-shoot communication; Stomatal closure; Strigolactones; Abscisic Acid; Crops", " Agricultural; Lactones; Plant Growth Regulators; Plant Roots; Plant Shoots; Osmoregulation; Plant Physiological Phenomena", "15. Life on land", "Plant Roots", "Lactones", "03 medical and health sciences", "Osmoregulation", "Plant Growth Regulators", "Plant Physiological Phenomena", "Plant Shoots", "Abscisic Acid"]}, "links": [{"href": "https://air.unimi.it/bitstream/2434/898419/2/erx494.pdf"}, {"href": "https://iris.unito.it/bitstream/2318/1661457/1/JEXBOT-2017-212340v2-Cardinale.pdf"}, {"href": "http://academic.oup.com/jxb/article-pdf/69/9/2291/24701402/erx494.pdf"}, {"href": "https://doi.org/10.1093/jxb/erx494"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Experimental%20Botany", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/jxb/erx494", "name": "item", "description": "10.1093/jxb/erx494", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/jxb/erx494"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-01-15T00:00:00Z"}}, {"id": "10.1093/treephys/21.2-3.163", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:28Z", "type": "Journal Article", "created": "2012-01-20", "title": "Interactive Effects Of Elevated Co2 Concentration And Nitrogen Supply On Partitioning Of Newly Fixed 13c And 15n Between Shoot And Roots Of Pedunculate Oak Seedlings (Quercus Robur)", "description": "Pedunculate oak (Quercus robur L.) seedlings were grown for 3 or 4 months (second- and third-flush stages) in greenhouses at two atmospheric CO2 concentrations ([CO2]) (350 or 700 micromol mol(-1)) and two nitrogen fertilization regimes (6.1 or 0.61 mmol N l(-1) nutrient solution). Combined effects of [CO2] and nitrogen fertilization on partitioning of newly acquired carbon (C) and nitrogen (N) were assessed by dual 13C and 15N short-term labeling of seedlings at the second- or third-flush stage of development. In the low-N treatment, root growth, but not shoot growth, was stimulated by elevated [CO2], with the result that shoot/root biomass ratio declined. At the second-flush stage, overall seedling biomass growth was increased (13%) by elevated [CO2] regardless of N fertilization. At the third-flush stage, elevated [CO2] increased growth sharply (139%) in the high-N but not the low-N treatment. Root/shoot biomass ratios were threefold higher in the low-N treatment relative to the high-N treatment. At the second-flush stage, leaf area was 45-51% greater in the high-N treatment than in the low-N treatment. At the-third flush stage, there was a positive interaction between the effects of N fertilization and [CO2] on leaf area, which was 93% greater in the high-N/elevated [CO2] treatment than in the low-N/ambient [CO2] treatment. Specific leaf area was reduced (17-25%) by elevated [CO2], whereas C and N concentrations of seedlings increased significantly in response to either elevated [CO2] or high-N fertilization. At the third-flush stage, acquisition of C and N per unit dry mass of leaf and fine root was 51 and 77% greater, respectively, in the elevated [CO2]/high-N fertilization treatment than in the ambient [CO2]/low-N fertilization treatment. However, there was dilution of leaf N in response to elevated [CO2]. Partitioning of newly acquired C and N between shoot and roots was altered by N fertilization but not [CO2]. More newly acquired C and N were partitioned to roots in the low-N treatment than in the high-N treatment.", "keywords": ["0106 biological sciences", "Carbon Isotopes", "[SDV.SA.SF]Life Sciences [q-bio]/Agricultural sciences/Silviculture", "Nitrogen Isotopes", "Nitrogen", "forestry", "Carbon Dioxide", "15. Life on land", "Plant Roots", "01 natural sciences", "Trees", "CHENE PEDONCULE", "Quercus", "Soil", "Biomass", "[SDV.SA.SF] Life Sciences [q-bio]/Agricultural sciences/Silviculture", " forestry", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1093/treephys/21.2-3.163"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/21.2-3.163", "name": "item", "description": "10.1093/treephys/21.2-3.163", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/21.2-3.163"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2001-02-01T00:00:00Z"}}, {"id": "10.1093/treephys/22.1.41", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:28Z", "type": "Journal Article", "created": "2012-01-20", "title": "Influence Of Tree Internal Nitrogen Reserves On The Response Of Beech (Fagus Sylvatica) Trees To Elevated Atmospheric Carbon Dioxide Concentration", "description": "We examined the influence of plant internal nitrogen (N) reserves on the response of 3-year-old beech (Fagus sylvatica L.) trees to elevated atmospheric CO2 concentration ([CO2]) in a dual 15N and 13C long-term labeling experiment. Trees were grown on sand and received either no N nutrition (-N treatment) or 4 mM N (+N treatment) for 1 year. The -N and +N pretreated trees were then placed in growth chambers and grown in 350 (ambient) or 700 ppm (elevated) of a 13CO2 atmosphere for 24 weeks. In all treatments, trees were supplied with 4 mM 15N during the experiment. Irrespective of tree N reserves, elevated [CO2] increased cumulative carbon (C) uptake by about 30% at Week 24 compared with that for trees in the ambient treatment. Elevated [CO2] also caused a shift in C allocation to belowground compartments, which was more pronounced in -N trees than in +N trees. In +N trees, belowground allocation of new C at Week 24 was 67% in ambient [CO2] compared with 70% in elevated [CO2]. The corresponding values for -N trees were 70 and 79%. The increase in C allocation in response to elevated [CO2] was most evident as an increase in belowground respiration; however, specific root respiration was unaffected by the CO2 or N treatments. Although elevated [CO2] increased root growth and belowground respiration, it had no effect on N uptake at Week 24. As a result of increased C uptake, N concentrations were decreased in trees in the elevated [CO2] treatment compared with trees in the ambient treatment in both N treatments. Partitioning of new N uptake was unaffected by elevated [CO2] in +N trees. In -N trees, however, N allocation to the stem decreased in response to elevated [CO2] and N allocation to fine roots increased, suggesting a reduction in the formation of N reserves in response to elevated [CO2]. We conclude that the response of beech trees to elevated [CO2] is affected by internal N status and that elevated [CO2] may influence the ability of the trees to form N reserves.", "keywords": ["Plant Leaves", "0106 biological sciences", "Nitrogen", "13. Climate action", "Fagus", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Plant Roots", "01 natural sciences", "Plant Shoots", "Trees"], "contacts": [{"organization": "Dyckmans, Jens, Flessa, H.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1093/treephys/22.1.41"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/22.1.41", "name": "item", "description": "10.1093/treephys/22.1.41", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/22.1.41"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2002-01-01T00:00:00Z"}}, {"id": "10.1093/treephys/23.12.815", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:28Z", "type": "Journal Article", "created": "2012-01-20", "title": "An Auxin-Repressed Gene (Rparp) From Black Locust (Robinia Pseudoacacia) Is Posttranscriptionally Regulated And Negatively Associated With Shoot Elongation", "description": "The plant hormone auxin regulates various growth and developmental processes by controlling the expression of auxin-response genes. While many genes up-regulated by auxin have been characterized, less is known about the genes that are down-regulated by auxin. We isolated and characterized an auxin-repressed gene (RpARP) from the tree legume, Robinia pseudoacacia L. A sequence similarity search in public databases showed that the RpARP gene has homologs in various higher plants including monocots and dicots. The deduced amino acid sequences are highly conserved among these homologs (up to 85% identity). Northern blot analysis showed that auxin repressed RpARP gene expression and that repression was dependent on the presence of metabolizable sugar and on protein synthesis. In addition, cold treatment abolished the auxin-mediated repression of RpARP gene expression. Results from transgenic plant analyses suggest that RpARP gene expression is posttranscriptionally regulated by auxin and by the untranslated regions. Sequence analysis of the promoter region (-70 and -500 bp upstream of the putative transcription initiation site) of the RpARP gene identified four sucrose-repressible response elements (TATCCAT-motifs; Huang et al. 1990), suggesting that the cis-elements responsible for regulation by sucrose are located in the promoter region. In fact, the expression of the transgenic RpARP gene was unaffected by sucrose when driven by a CaMV 35S promoter. We present evidence that RpARP gene expression is negatively associated with hypocotyl elongation.", "keywords": ["0301 basic medicine", "2. Zero hunger", "0303 health sciences", "Base Sequence", "Indoleacetic Acids", "Molecular Sequence Data", "Arabidopsis", "Robinia", "Blotting", " Northern", "Genes", " Plant", "Plants", " Genetically Modified", "Trees", "03 medical and health sciences", "Gene Expression Regulation", " Plant", "Sequence Alignment", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1093/treephys/23.12.815"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/23.12.815", "name": "item", "description": "10.1093/treephys/23.12.815", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/23.12.815"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-08-01T00:00:00Z"}}, {"id": "10.1093/treephys/25.2.179", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:28Z", "type": "Journal Article", "created": "2012-01-20", "title": "Elevated Co2 Concentration, Fertilization And Their Interaction: Growth Stimulation In A Short-Rotation Poplar Coppice (Euroface)", "description": "We investigated the individual and combined effects of elevated CO2 concentration and fertilization on aboveground growth of three poplar species (Populus alba L. Clone 2AS-11, P. nigra L. Clone Jean Pourtet and P. x euramericana Clone I-214) growing in a short-rotation coppice culture for two growing seasons after coppicing. Free-air carbon dioxide enrichment (FACE) stimulated the number of shoots per stool, leaf area index measured with a fish-eye-type plant canopy analyzer (LAIoptical), and annual leaf production, but did not affect dominant shoot height or canopy productivity index. Comparison of LAIoptical with LAI estimates from litter collections and from allometric relationships showed considerable differences. The increase in biomass in response to FACE was caused by an initial stimulation of absolute and relative growth rates, which disappeared after the first growing season following coppicing. An ontogenetic decline in growth in the FACE treatment, together with strong competition inside the dense plantation, may have caused this decrease. Fertilization did not influence aboveground growth, although some FACE responses were more pronounced in fertilized trees. A species effect was observed for most parameters.", "keywords": ["Plant Leaves", "0106 biological sciences", "Populus", "0401 agriculture", " forestry", " and fisheries", "Biomass", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Fertilizers", "01 natural sciences", "Plant Shoots", "Trees"]}, "links": [{"href": "https://doi.org/10.1093/treephys/25.2.179"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/25.2.179", "name": "item", "description": "10.1093/treephys/25.2.179", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/25.2.179"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-02-01T00:00:00Z"}}, {"id": "10.1093/treephys/tps133", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:29Z", "type": "Journal Article", "created": "2013-02-01", "title": "Nitrogen Nutrition And Drought Hardening Exert Opposite Effects On The Stress Tolerance Of Pinus Pinea L. Seedlings", "description": "Functional attributes determine the survival and growth of planted seedlings in reforestation projects. Nitrogen (N) and water are important resources in the cultivation of forest species, which have a strong effect on plant functional traits. We analyzed the influence of N nutrition on drought acclimation of Pinus pinea L. seedlings. Specifically, we addressed if high N fertilization reduces drought and frost tolerance of seedlings and whether drought hardening reverses the effect of high N fertilization on stress tolerance. Seedlings were grown under two N fertilization regimes (6 and 100 mg N per plant) and subjected to three drought-hardening levels (well-watered, moderate and strong hardening). Water relations, gas exchange, frost damage, N concentration and growth at the end of the drought-hardening period, and survival and growth of seedlings under controlled xeric and mesic outplanting conditions were measured. Relative to low-N plants, high-N plants were larger, had higher stomatal conductance (27%), residual transpiration (11%) and new root growth capacity and closed stomata at higher water potential. However, high N fertilization also increased frost damage (24%) and decreased plasmalemma stability to dehydration (9%). Drought hardening reversed to a great extent the reduction in stress tolerance caused by high N fertilization as it decreased frost damage, stomatal conductance and residual transpiration by 21, 31 and 24%, respectively, and increased plasmalemma stability to dehydration (8%). Drought hardening increased tissue non-structural carbohydrates and N concentration, especially in high-fertilized plants. Frost damage was positively related to the stability of plasmalemma to dehydration (r\u2009=\u20090.92) and both traits were negatively related to the concentration of reducing soluble sugars. No differences existed between moderate and strong drought-hardening treatments. Neither N nutrition nor drought hardening had any clear effect on seedling performance under xeric outplanting conditions. However, fertilization increased growth under mesic conditions, whereas drought hardening decreased growth. We conclude that drought hardening and N fertilization applied under typical container nursery operational conditions exert opposite effects on the physiological stress tolerance of P. pinea seedlings. While drought hardening increases overall stress tolerance, N nutrition reduces it and yet has no effect on the drought acclimation capacity of seedlings.", "keywords": ["0106 biological sciences", "2. Zero hunger", "Nitrogen", "Acclimatization", "Water", "Plant Transpiration", "15. Life on land", "Pinus", "Plant Roots", "01 natural sciences", "6. Clean water", "Droughts", "Trees", "Cold Temperature", "Plant Leaves", "Seedlings", "Stress", " Physiological", "Plant Stomata", "Photosynthesis", "Fertilizers", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1093/treephys/tps133"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/tps133", "name": "item", "description": "10.1093/treephys/tps133", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/tps133"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-01-30T00:00:00Z"}}, {"id": "10.1093/treephys/tpt019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:29Z", "type": "Journal Article", "created": "2013-03-23", "title": "Synergistic, Additive And Antagonistic Impacts Of Drought And Herbivory On Pinus Sylvestris: Leaf, Tissue And Whole-Plant Responses And Recovery", "description": "Forests typically experience a mix of anthropogenic, natural and climate-induced stressors of different intensities, creating a mosaic of stressor combinations across the landscape. When multiple stressors co-occur, their combined impact on plant growth is often greater than expected based on single-factor studies (i.e., synergistic), potentially causing catastrophic dysfunction of physiological processes from an otherwise recoverable situation. Drought and herbivory are two stressors that commonly co-occur in forested ecosystems, and have the potential to 'overlap' in their impacts on various plant traits and processes. However, the combined impacts from these two stressors may not be predictable based on additive models from single-stressor studies. Moreover, the impacts and subsequent recovery may be strongly influenced by the relative intensities of each stressor. Here, we applied drought stress and simulated bark-feeding herbivory at three levels of intensity (control, moderate and severe) in a full factorial design on young Pinus sylvestris L. seedlings. We assessed if the combined effects from two stressors were additive (responses were equal to the sum of the single-factor effects), synergistic (greater than expected) or antagonistic (less than expected) on a suite of morphological and physiological traits at the leaf-, tissue- and whole-plant level. We additionally investigated whether recovery from herbivory was dependent on relief from drought. The two stressors had synergistic impacts on specific leaf area and water-use efficiency, additive effects on height and root-to-shoot ratios, but antagonistic effects on photosynthesis, conductance and, most notably, on root, shoot and whole-plant biomass. Nevertheless, the magnitude and direction of the combined impacts were often dependent on the relative intensities of each stressor, leading to many additive or synergistic responses from specific stressor combinations. Also, seedling recovery was far more dependent on the previous year's drought compared with the previous year's herbivory, demonstrating the influence of one stressor over another during recovery. Our study reveals for the first time, the importance of not only the presence or absence of drought and herbivory stressors, but also shows that their relative intensities are critical in determining the direction and magnitude of their impacts on establishing seedlings.", "keywords": ["0106 biological sciences", "Water", "Pinus sylvestris", "Plant Transpiration", "15. Life on land", "Plant Roots", "01 natural sciences", "6. Clean water", "Droughts", "Trees", "Plant Leaves", "Seedlings", "Stress", " Physiological", "Biomass", "Herbivory", "Photosynthesis", "Ecosystem", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1093/treephys/tpt019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Tree%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/treephys/tpt019", "name": "item", "description": "10.1093/treephys/tpt019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/treephys/tpt019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-03-21T00:00:00Z"}}, {"id": "10.1111/gcb.13119", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-07-25T16:18:44Z", "type": "Journal Article", "created": "2015-10-10", "title": "Enhanced Winter Soil Frost Reduces Methane Emission During The Subsequent Growing Season In A Boreal Peatland", "description": "AbstractWinter climate change may result in reduced snow cover and could, consequently, alter the soil frost regime and biogeochemical processes underlying the exchange of methane (CH4) in boreal peatlands. In this study, we investigated the short\uffe2\uff80\uff90term (1\uffe2\uff80\uff933\uffc2\uffa0years) vs. long\uffe2\uff80\uff90term (11\uffc2\uffa0years) effects of intensified winter soil frost (induced by experimental snow exclusion) on CH4 exchange during the following growing season in a boreal peatland. In the first 3\uffc2\uffa0years (2004\uffe2\uff80\uff932006), lower CH4 emissions in the treatment plots relative to the control coincided with delayed soil temperature increase in the treatment plots at the beginning of the growing season (May). After 11 treatment years (in 2014), CH4 emissions were lower in the treatment plots relative to the control over the entire growing season, resulting in a reduction in total growing season CH4 emission by 27%. From May to July 2014, reduced sedge leaf area coincided with lower CH4 emissions in the treatment plots compared to the control. From July to August, lower dissolved organic carbon concentrations in the pore water of the treatment plots explained 72% of the differences in CH4 emission between control and treatment. In addition, greater Sphagnum moss growth in the treatment plots resulted in a larger distance between the moss surface and the water table (i.e., increasing the oxic layer) which may have enhanced the CH4 oxidation potential in the treatment plots relative to the control in 2014. The differences in vegetation might also explain the lower temperature sensitivity of CH4 emission observed in the treatment plots relative to the control. Overall, this study suggests that greater soil frost, associated with future winter climate change, might substantially reduce the growing season CH4 emission in boreal peatlands through altering vegetation dynamics and subsequently causing vegetation\uffe2\uff80\uff90mediated effects on CH4 exchange.
", "keywords": ["Sweden", "Climate Change", "Ice", "Temperature", "04 agricultural and veterinary sciences", "Forests", "15. Life on land", "01 natural sciences", "Plant Leaves", "Soil", "13. Climate action", "Snow", "Sphagnopsida", "0401 agriculture", " forestry", " and fisheries", "Cyperaceae", "Seasons", "Methane", "Plant Shoots", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1111/gcb.13119"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/gcb.13119", "name": "item", "description": "10.1111/gcb.13119", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.13119"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-01-06T00:00:00Z"}}, {"id": "10.1111/j.1469-8137.2007.02309.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:59Z", "type": "Journal Article", "created": "2008-02-06", "title": "Recurrent Soil Freeze-Thaw Cycles Enhance Grassland Productivity", "description": "Ongoing global warming will increase the frequency of soil freeze-thaw cycles (FTCs) in cool-temperate and other high-latitude regions. The spatial relevance of seasonally frozen ground amounts to c. 55% of the total land area of the northern hemisphere. Evidence suggests that FTCs contribute to nutrient dynamics. Knowledge of their effects on plant communities is scarce, although plants may be the decisive factor in controlling ecosystem functions such as nutrient retention. Here, the effects are analysed of five additional FTCs in winter for the above- and below-ground productivity of experimental grassland communities and soil enzymatic activity over the following growing season. Freeze-thaw cycles increased the above-ground productivity but reduced root length over the whole subsequent growing season. In summer, no changes in soil enzymatic activities representing the carbon, nitrogen and phosphorus cycles were observed in the FTC-manipulated plots, except for an increased cellobiohydrolase activity. Changes in productivity resulting in an increased shoot-to-root ratio and shifts in timing are capable of altering ecosystem stability and ecosystem services, such as productivity and nutrient retention.", "keywords": ["Greenhouse Effect", "2. Zero hunger", "Time Factors", "Reproduction", "04 agricultural and veterinary sciences", "15. Life on land", "Poaceae", "Plant Roots", "above-ground net primary productivity (ANPP); central Europe; climate change; EVENT-experiment; freeze\u2013thaw cycles; root length; soil enzymatic activity", "Soil", "13. Climate action", "Freezing", "0401 agriculture", " forestry", " and fisheries", "Ecosystem", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1111/j.1469-8137.2007.02309.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1469-8137.2007.02309.x", "name": "item", "description": "10.1111/j.1469-8137.2007.02309.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1469-8137.2007.02309.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-12-07T00:00:00Z"}}, {"id": "10.1111/j.1469-8137.2010.03293.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:59Z", "type": "Journal Article", "created": "2010-05-10", "title": "Contrasting Effects Of Elevated Co2 And Warming On Nitrogen Cycling In A Semiarid Grassland", "description": "*Simulation models indicate that the nitrogen (N) cycle plays a key role in how other ecosystem processes such as plant productivity and carbon (C) sequestration respond to elevated CO(2) and warming. However, combined effects of elevated CO(2) and warming on N cycling have rarely been tested in the field. *Here, we studied N cycling under ambient and elevated CO(2) concentrations (600 micromol mol(-1)), and ambient and elevated temperature (1.5 : 3.0 degrees C warmer day:night) in a full factorial semiarid grassland field experiment in Wyoming, USA. We measured soil inorganic N, plant and microbial N pool sizes and NO(3)(-) uptake (using a (15)N tracer). *Soil inorganic N significantly decreased under elevated CO(2), probably because of increased microbial N immobilization, while soil inorganic N and plant N pool sizes significantly increased with warming, probably because of increased N supply. We observed no CO(2 )x warming interaction effects on soil inorganic N, N pool sizes or NO(3)(-) uptake in plants and microbes. *Our results indicate a more closed N cycle under elevated CO(2) and a more open N cycle with warming, which could affect long-term N retention, plant productivity, and C sequestration in this semiarid grassland.", "keywords": ["580", "2. Zero hunger", "Bacteria", "Nitrogen Isotopes", "Nitrogen", "Temperature", "Water", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Poaceae", "Global Warming", "Plant Roots", "Soil", "13. Climate action", "Isotope Labeling", "XXXXXX - Unknown", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Desert Climate", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1111/j.1469-8137.2010.03293.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1469-8137.2010.03293.x", "name": "item", "description": "10.1111/j.1469-8137.2010.03293.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1469-8137.2010.03293.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-05-10T00:00:00Z"}}, {"id": "10.1111/j.1469-8137.2011.03776.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:59Z", "type": "Journal Article", "created": "2011-06-08", "title": "Seven Years Of Carbon Dioxide Enrichment, Nitrogen Fertilization And Plant Diversity Influence Arbuscular Mycorrhizal Fungi In A Grassland Ecosystem", "description": "\u2022 We tested the prediction that the abundance and diversity of arbuscular mycorrhizal (AM) fungi are influenced by resource availability and plant community composition by examining the joint effects of carbon dioxide (CO(2) ) enrichment, nitrogen (N) fertilization and plant diversity on AM fungi. \u2022 We quantified AM fungal spores and extramatrical hyphae in 176 plots after 7 yr of treatment with all combinations of ambient or elevated CO(2) (368 or 560 ppm), with or without N fertilization (0 or 4 g Nm(-2) ), and one (monoculture) or 16 host plant species (polyculture) in the BioCON field experiment at Cedar Creek Ecosystem Science Reserve, Minnesota, USA. \u2022 Extramatrical hyphal lengths were increased by CO(2) enrichment, whereas AM spore abundance decreased with N fertilization. Spore abundance, morphotype richness and extramatrical hyphal lengths were all greater in monoculture plots. A structural equation model showed AM fungal biovolume was most influenced by CO(2) enrichment, plant community composition and plant richness, whereas spore richness was most influenced by fungal biovolume, plant community composition and plant richness. \u2022 Arbuscular mycorrhizal fungi responded to differences in host community and resource availability, suggesting that mycorrhizal functions, such as carbon sequestration and soil stability, will be affected by global change.", "keywords": ["0106 biological sciences", "Nitrogen", "Minnesota", "Hyphae", "Poaceae", "Models", " Biological", "01 natural sciences", "nitrogen", "Soil", "Mycorrhizae", "Biomass", "Fertilizers", "Ecosystem", "Soil Microbiology", "vesicular-arbuscular mycorrhizas", "580", "2. Zero hunger", "grassland ecology", "grasslands", "carbon dioxide", "Biodiversity", "04 agricultural and veterinary sciences", "Carbon Dioxide", "Spores", " Fungal", "15. Life on land", "plant diversity", "0401 agriculture", " forestry", " and fisheries", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1111/j.1469-8137.2011.03776.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1469-8137.2011.03776.x", "name": "item", "description": "10.1111/j.1469-8137.2011.03776.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1469-8137.2011.03776.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-06-08T00:00:00Z"}}, {"id": "10.1111/nph.19724", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:07Z", "type": "Journal Article", "created": "2024-03-29", "title": "Aerobic methane production in Scots pine shoots is independent of drought or photosynthesis", "description": "Summary
Shoot\uffe2\uff80\uff90level emissions of aerobically produced methane (CH4) may be an overlooked source of tree\uffe2\uff80\uff90derived CH4, but insufficient understanding of the interactions between their environmental and physiological drivers still prevents the reliable upscaling of canopy CH4 fluxes.
We utilised a novel automated chamber system to continuously measure CH4 fluxes from the shoots of Pinus sylvestris (Scots pine) saplings under drought to investigate how canopy CH4 fluxes respond to the drought\uffe2\uff80\uff90induced alterations in their physiological processes and to isolate the shoot\uffe2\uff80\uff90level production of CH4 from soil\uffe2\uff80\uff90derived transport and photosynthesis.
We found that aerobic CH4 emissions are not affected by the drought\uffe2\uff80\uff90induced stress, changes in physiological processes, or decrease in photosynthesis. Instead, these emissions vary on short temporal scales with environmental drivers such as temperature, suggesting that they result from abiotic degradation of plant compounds.
Our study shows that aerobic CH4 emissions from foliage are distinct from photosynthesis\uffe2\uff80\uff90related processes. Thus, instead of photosynthesis rates, it is more reliable to construct regional and global estimates for the aerobic CH4 emission based on regional differences in foliage biomass and climate, also accounting for short\uffe2\uff80\uff90term variations of weather variables such as air temperature and solar radiation.
While the importance of plant water relations in determining crop response to soil water availability is difficult to over\uffe2\uff80\uff90emphasise, under many circumstances, plants maintain their leaf water status as the soil dries yet shoot gas exchange and growth is restricted. Such observations lead to development of a paradigm that root\uffe2\uff80\uff90to\uffe2\uff80\uff90shoot signals regulate shoot physiology, and a conceptual framework to test the importance of different signals such as plant hormones in these physiological processes. Nevertheless, shoot\uffe2\uff80\uff90to\uffe2\uff80\uff90root (hormonal) signalling also plays an important role in regulating root growth and function and may dominate when larger quantities of a hormone are produced in the shoots than the roots. Here, we review the evidence for acropetal and basipetal transport of three different plant hormones (abscisic acid, jasmonates, strigolactones) that have antitranspirant effects, to indicate the origin and action of these signalling systems. The physiological importance of each transport pathway likely depends on the specific environmental conditions the plant is exposed to, specifically whether the roots or shoots are the first to lose turgor when exposed to drying soil or elevated atmospheric demand, respectively. All three hormones can interact to influence each other's synthesis, degradation and intracellular signalling to augment or attenuate their physiological impacts, highlighting the complexity of unravelling these signalling systems. Nevertheless, such complexity suggests crop improvement opportunities to select for allelic variation in the genes affecting hormonal regulation, and (in selected crops) to augment root\uffe2\uff80\uff93shoot communication by judicious selection of rootstock\uffe2\uff80\uff93scion combinations to ameliorate abiotic stresses.Different phytohormones can act as root\uffe2\uff80\uff90to\uffe2\uff80\uff90shoot signalling molecules in response to soil drying. Recent findings suggest that root ABA levels are predominantly leaf\uffe2\uff80\uff90sourced and not locally synthesized, thus, ABA exported from the roots in the xylem is mostly recycled from the shoot. To explain the differential root hormone accumulation observed under partial rootzone drying (PRD) that imposes distinct dry and wet parts of the root zone, we grafted \uffe2\uff80\uff9ctwo\uffe2\uff80\uff90root, one\uffe2\uff80\uff90shoot\uffe2\uff80\uff9d soybean plants to independently assess xylem export of different phytohormones from either part of the root zone. Grafts were subjected to a combination of girdling (either part, all, or none of the rootzone) and irrigation (homogenously well\uffe2\uff80\uff90watered (WW) and PRD). PRD did not increase foliar ABA but decreased stomatal conductance, attributed to decreased leaf water potential and/or increased xylem sap ABA, JA, or ACC concentrations. In contrast, the foliar ABA increments that accompanied girdling\uffe2\uff80\uff90induced stomatal closure were proportional to the root fraction to which phloem transport was interrupted. Irrespective of girdling, root ABA accumulation (and xylem ABA export from) was highest in the dry PRD rootzone, xylem jasmonic acid (JA) in the wet PRD rootzone, and xylem ACC in both rootzones of PRD plants. Thus, soil drying of the dry root zone and transient overwatering of the wet root zone enhanced ACC export in PRD plants. We conclude that root water status during PRD enhances root ABA, JA and ACC synthesis and xylem export, independent of shoot\uffe2\uff80\uff90to\uffe2\uff80\uff90root transport.IRON\uffe2\uff80\uff90REGULATED TRANSPORTER1 (IRT1) is the root high\uffe2\uff80\uff90affinity ferrous iron (Fe) uptake system and indispensable for the completion of the life cycle of Arabidopsis thaliana without vigorous Fe supplementation. Here we provide evidence supporting a second role of IRT1 in root\uffe2\uff80\uff90to\uffe2\uff80\uff90shoot partitioning of Fe. We show that irt1 mutants overaccumulate Fe in roots, most prominently in the cortex of the differentiation zone in irt1\uffe2\uff80\uff902, compared to the wild type. Shoots of irt1\uffe2\uff80\uff902 are severely Fe\uffe2\uff80\uff90deficient according to Fe content and marker transcripts, as expected. We generated irt1\uffe2\uff80\uff902 lines producing IRT1 mutant variants carrying single amino\uffe2\uff80\uff90acid substitutions of key residues in transmembrane helices IV and V, Ser206 and His232, which are required for transport activity in yeast. Root short\uffe2\uff80\uff90term 55Fe uptake rates were uninformative concerning IRT1\uffe2\uff80\uff90mediated transport. Overall irt1\uffe2\uff80\uff90like concentrations of the secondary substrate Mn suggested that the transgenic Arabidopsis lines also remain incapable of IRT1\uffe2\uff80\uff90mediated root Fe uptake. Yet, IRT1S206A partially complements rosette dwarfing and leaf chlorosis of irt1\uffe2\uff80\uff902, as well as root\uffe2\uff80\uff90to\uffe2\uff80\uff90shoot Fe partitioning and gene expression defects of irt1\uffe2\uff80\uff902, all of which are fully complemented by wild\uffe2\uff80\uff90type IRT1. Taken together, these results suggest a regulatory function for IRT1 in root\uffe2\uff80\uff90to\uffe2\uff80\uff90shoot Fe partitioning that does not require Fe transport activity of IRT1. Among the genes of which transcript levels are partially dependent on IRT1, we identify MYB DOMAIN PROTEIN10, MYB DOMAIN PROTEIN72 and NICOTIANAMINE SYNTHASE4 as candidates for effecting IRT1\uffe2\uff80\uff90dependent Fe mobilization in roots. Understanding the biological functions of IRT1 will help to improve Fe nutrition and the nutritional quality of agricultural crops. Whether rising atmospheric carbon dioxide (CO 2 ) concentrations will cause forests to grow faster and store more carbon is an open question. Using free air CO 2 release in combination with a canopy crane, we found an immediate and sustained enhancement of carbon flux through 35-meter-tall temperate forest trees when exposed to elevated CO 2 . However, there was no overall stimulation in stem growth and leaf litter production after 4 years. Photosynthetic capacity was not reduced, leaf chemistry changes were minor, and tree species differed in their responses. Although growing vigorously, these trees did not accrete more biomass carbon in stems in response to elevated CO 2 , thus challenging projections of growth responses derived from tests with smaller trees. ", "keywords": ["Carbon Isotopes", "Plant Stems", "Atmosphere", "Nitrogen", "0211 other engineering and technologies", "0207 environmental engineering", "02 engineering and technology", "Carbon Dioxide", "15. Life on land", "Lignin", "Carbon", "Trees", "Plant Leaves", "Quercus", "Soil", "Betulaceae", "13. Climate action", "Fagus", "Biomass", "Photosynthesis", "Ecosystem", "Plant Shoots", "Switzerland"]}, "links": [{"href": "https://doi.org/10.1126/science.1113977"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1126/science.1113977", "name": "item", "description": "10.1126/science.1113977", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1126/science.1113977"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-08-26T00:00:00Z"}}, {"id": "10.1371/journal.pbio.0030319", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:30Z", "type": "Journal Article", "created": "2005-08-02", "title": "Responses Of Grassland Production To Single And Multiple Global Environmental Changes", "description": "In this century, increasing concentrations of carbon dioxide (CO2) and other greenhouse gases in the Earth's atmosphere are expected to cause warmer surface temperatures and changes in precipitation patterns. At the same time, reactive nitrogen is entering natural systems at unprecedented rates. These global environmental changes have consequences for the functioning of natural ecosystems, and responses of these systems may feed back to affect climate and atmospheric composition. Here, we report plant growth responses of an ecosystem exposed to factorial combinations of four expected global environmental changes. We exposed California grassland to elevated CO2, temperature, precipitation, and nitrogen deposition for five years. Root and shoot production did not respond to elevated CO2 or modest warming. Supplemental precipitation led to increases in shoot production and offsetting decreases in root production. Supplemental nitrate deposition increased total production by an average of 26%, primarily by stimulating shoot growth. Interactions among the main treatments were rare. Together, these results suggest that production in this grassland will respond minimally to changes in CO2 and winter precipitation, and to small amounts of warming. Increased nitrate deposition would have stronger effects on the grassland. Aside from this nitrate response, expectations that a changing atmosphere and climate would promote carbon storage by increasing plant growth appear unlikely to be realized in this system.", "keywords": ["Greenhouse Effect", "0106 biological sciences", "2. Zero hunger", "Nitrates", "Meteorological Concepts", "QH301-705.5", "Climate", "Carbon Dioxide", "Environment", "15. Life on land", "Poaceae", "Plant Roots", "01 natural sciences", "13. Climate action", "Biology (General)", "Plant Shoots", "Research Article", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1371/journal.pbio.0030319"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pbio.0030319", "name": "item", "description": "10.1371/journal.pbio.0030319", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pbio.0030319"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-08-09T00:00:00Z"}}, {"id": "10.1371/journal.pone.0099385", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:32Z", "type": "Journal Article", "created": "2014-06-11", "title": "Effects Of Fertilization And Clipping On Carbon, Nitrogen Storage, And Soil Microbial Activity In A Natural Grassland In Southern China", "description": "Grassland managements can affect carbon (C) and nitrogen (N) storage in grassland ecosystems with consequent feedbacks to climate change. We investigated the impacts of compound fertilization and clipping on grass biomass, plant and soil (0-20 cm depth) C, N storage, plant and soil C: N ratios, soil microbial activity and diversity, and C, N sequestration rates in grassland in situ in the National Dalaoling Forest Park of China beginning July, 2011. In July, 2012, the fertilization increased total biomass by 30.1%, plant C by 34.5%, plant N by 79.8%, soil C by 18.8% and soil N by 23.8% compared with the control, respectively. Whereas the clipping decreased total biomass, plant C and N, soil C and N by 24.9%, 30.3%, 39.3%, 18.5%, and 19.4%, respectively, when compared to the control. The plant C: N ratio was lower for the fertilization than for the control and the clipping treatments. The soil microbial activity and diversity indices were higher for the fertilization than for the control. The clipping generally exhibited a lower level of soil microbial activity and diversity compared to the control. The principal component analysis indicated that the soil microbial communities of the control, fertilization and clipping treatments formed three distinct groups. The plant C and N sequestration rates of the fertilization were significantly higher than the clipping treatment. Our results suggest that fertilization is an efficient management practice in improving the C and N storage of the grassland ecosystem via increasing the grass biomass and soil microbial activity and diversity.", "keywords": ["2. Zero hunger", "China", "Principal Component Analysis", "Bacteria", "Nitrogen", "Science", "Q", "R", "Color", "Biodiversity", "04 agricultural and veterinary sciences", "15. Life on land", "Grassland", "Plant Roots", "Carbon", "6. Clean water", "13. Climate action", "Medicine", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Fertilizers", "Plant Shoots", "Soil Microbiology", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371/journal.pone.0099385"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pone.0099385", "name": "item", "description": "10.1371/journal.pone.0099385", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pone.0099385"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-06-10T00:00:00Z"}}, {"id": "10.1371/journal.pone.0108821", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:33Z", "type": "Journal Article", "created": "2014-09-30", "title": "Effects Of Grazing Regimes On Plant Traits And Soil Nutrients In An Alpine Steppe, Northern Tibetan Plateau", "description": "Understanding the impact of grazing intensity on grassland production and soil fertility is of fundamental importance for grassland conservation and management. We thus compared three types of alpine steppe management by studying vegetation traits and soil properties in response to three levels of grazing pressure: permanent grazing (M1), seasonal grazing (M2), and grazing exclusion (M3) in the alpine steppe in Xainza County, Tibetan Plateau. The results showed that community biomass allocation did not support the isometric hypothesis under different grassland management types. Plants in M1 had less aboveground biomass but more belowground biomass in the top soil layer than those in M2 and M3, which was largely due to that root/shoot ratios of dominant plants in M1 were far greater than those in M2 and M3. The interramet distance and the tiller size of the dominant clonal plants were greater in M3 than in M1 and M2, while the resprouting from rhizome buds did not differ significantly among the three greezing regimes. Both soil bulk density and soil available nitrogen in M3 were greater than in M1 at the 15-30 cm soil depth (P\u200a=\u200a0.05). Soil organic carbon and soil total nitrogen were greater in M3 than in M1 and M2 (P\u200a=\u200a0.05). We conclude that the isometric hypothesis is not supported in this study and fencing is a helpful grassland management in terms of plant growth and soil nutrient retention in alpine steppe. The extreme cold, scarce precipitation and short growing period may be the causation of the unique plant and soil responses to different management regimes.", "keywords": ["2. Zero hunger", "Nitrogen", "Science", "Q", "R", "04 agricultural and veterinary sciences", "Plants", "15. Life on land", "Tibet", "Grassland", "Plant Roots", "3. Good health", "Soil", "Medicine", "Animals", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Herbivory", "Plant Shoots", "Rhizome", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371/journal.pone.0108821"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pone.0108821", "name": "item", "description": "10.1371/journal.pone.0108821", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pone.0108821"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-09-30T00:00:00Z"}}, {"id": "10.1371/journal.pone.0100577", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:32Z", "type": "Journal Article", "created": "2014-06-23", "title": "Growth And Phenology Of Three Dwarf Shrub Species In A Six-Year Soil Warming Experiment At The Alpine Treeline", "description": "Global warming can have substantial impacts on the phenological and growth patterns of alpine and Arctic species, resulting in shifts in plant community composition and ecosystem dynamics. We evaluated the effects of a six-year experimental soil warming treatment (+4\u00b0C, 2007-2012) on the phenology and growth of three co-dominant dwarf shrub species growing in the understory of Larix decidua and Pinus uncinata at treeline in the Swiss Alps. We monitored vegetative and reproductive phenology of Vaccinium myrtillus, Vaccinium gaultherioides and Empetrum hermaphroditum throughout the early growing season of 2012 and, following a major harvest at peak season, we measured the biomass of above-ground ramet fractions. For all six years of soil warming we measured annual shoot growth of the three species and analyzed ramet age and xylem ring width of V. myrtillus. Our results show that phenology of the three species was more influenced by snowmelt timing, and also by plot tree species (Larix or Pinus) in the case of V. myrtillus, than by soil warming. However, the warming treatment led to increased V. myrtillus total above-ground ramet biomass (+36% in 2012), especially new shoot biomass (+63% in 2012), as well as increased new shoot increment length and xylem ring width (+22% and +41%, respectively; average for 2007-2012). These results indicate enhanced overall growth of V. myrtillus under soil warming that was sustained over six years and was not caused by an extended growing period in early summer. In contrast, E. hermaphroditum only showed a positive shoot growth response to warming in 2011 (+21%), and V. gaultherioides showed no significant growth response. Our results indicate that V. myrtillus might have a competitive advantage over the less responsive co-occurring dwarf shrub species under future global warming.", "keywords": ["0106 biological sciences", "Nitrogen", "Science", "Q", "R", "Temperature", "Carbon Dioxide", "15. Life on land", "Adaptation", " Physiological", "01 natural sciences", "Soil", "13. Climate action", "11. Sustainability", "Medicine", "Ericaceae", "Ecosystem", "Plant Shoots", "Vaccinium", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371/journal.pone.0100577"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pone.0100577", "name": "item", "description": "10.1371/journal.pone.0100577", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pone.0100577"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-06-23T00:00:00Z"}}, {"id": "10.1371/journal.pone.0149949", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:19:33Z", "type": "Journal Article", "created": "2016-02-29", "title": "Cacao Cultivation Under Diverse Shade Tree Cover Allows High Carbon Storage And Sequestration Without Yield Losses", "description": "One of the main drivers of tropical forest loss is their conversion to oil palm, soy or cacao plantations with low biodiversity and greatly reduced carbon storage. Southeast Asian cacao plantations are often established under shade tree cover, but are later converted to non-shaded monocultures to avoid resource competition. We compared three co-occurring cacao cultivation systems (3 replicate stands each) with different shade intensity (non-shaded monoculture, cacao with the legume Gliricidia sepium shade trees, and cacao with several shade tree species) in Sulawesi (Indonesia) with respect to above- and belowground biomass and productivity, and cacao bean yield. Total biomass C stocks (above- and belowground) increased fivefold from the monoculture to the multi-shade tree system (from 11 to 57 Mg ha-1), total net primary production rose twofold (from 9 to 18 Mg C ha-1 yr-1). This increase was associated with a 6fold increase in aboveground biomass, but only a 3.5fold increase in root biomass, indicating a clear shift in C allocation to aboveground tree organs with increasing shade for both cacao and shade trees. Despite a canopy cover increase from 50 to 93%, cacao bean yield remained invariant across the systems (variation: 1.1-1.2 Mg C ha-1 yr-1). The monocultures had a twice as rapid leaf turnover suggesting that shading reduces the exposure of cacao to atmospheric drought, probably resulting in greater leaf longevity. Thus, contrary to general belief, cacao bean yield does not necessarily decrease under shading which seems to reduce physical stress. If planned properly, cacao plantations under a shade tree cover allow combining high yield with benefits for carbon sequestration and storage, production system stability under stress, and higher levels of animal and plant diversity.", "keywords": ["0301 basic medicine", "Carbon Sequestration", "Science", "Forests", "Plant Roots", "Trees", "sfb990_journalarticles", "Soil", "03 medical and health sciences", "Biomass", "2. Zero hunger", "Cacao", "Principal Component Analysis", "Geography", "Q", "R", "Agriculture", "Biodiversity", "04 agricultural and veterinary sciences", "15. Life on land", "Carbon", "Indonesia", "Linear Models", "Medicine", "0401 agriculture", " forestry", " and fisheries", "Plant Shoots", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371/journal.pone.0149949"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLOS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pone.0149949", "name": "item", "description": "10.1371/journal.pone.0149949", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pone.0149949"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-02-29T00:00:00Z"}}, {"id": "10.3390/ijms21010228", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:21:00Z", "type": "Journal Article", "created": "2019-12-30", "title": "How Vine Shoots as Fillers Impact the Biodegradation of PHBV-Based Composites", "description": "Vine shoots are lignocellulosic agricultural residues. In addition to being an interesting source of polyphenols, they can be used as fillers in a poly(3-hydroxybutyrate-3-hydroxyvalerate) (PHBV) matrix to decrease the overall cost and to propose an alternative to non-biodegradable fossil-based materials. The objective of the present work was to investigate how the incorporation of vine shoots fillers and a preliminary polyphenol extraction step could impact the biodegradability of biocomposites. Biocomposites (20 wt %) were produced by microcompounding. The biodegradation of materials was assessed by respirometric tests in soil. The negative impact of polyphenols on the biodegradability of vine shoots was confirmed. This was supported by crystallinity measurements and scanning electron microscopy (SEM) observations, which showed no difference in structure nor morphology between virgin and exhausted vine shoots particles. The incorporation of vine shoots fillers in PHBV slightly accelerated the overall biodegradation kinetics. All the biocomposites produced were considered fully biodegradable according to the French and European standard NF EN 17033, allowing the conclusion that up-cycling vine shoots for the production of lignocellulosic fillers is a promising strategy to provide biodegradable materials in natural conditions. Moreover, in a biorefinery context, polyphenol extraction from vine shoots has the advantage of improving their biodegradability.
", "keywords": ["0301 basic medicine", "biocomposites", "660", "polyphenols extraction", "Polyesters", "Polyphenols", "600", "02 engineering and technology", "[SPI.MAT] Engineering Sciences [physics]/Materials", "15. Life on land", "biodegradation", "Lignin", "Article", "510", "[SPI.MAT]Engineering Sciences [physics]/Materials", "poly(3-hydroxybutyrate-3-hydroxyvalerate)", "vine shoots", "03 medical and health sciences", "natural fibers", "Biodegradation", " Environmental", "Vitis", "0210 nano-technology", "Plant Shoots"]}, "links": [{"href": "http://www.mdpi.com/1422-0067/21/1/228/pdf"}, {"href": "https://www.mdpi.com/1422-0067/21/1/228/pdf"}, {"href": "https://doi.org/10.3390/ijms21010228"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/International%20Journal%20of%20Molecular%20Sciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/ijms21010228", "name": "item", "description": "10.3390/ijms21010228", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/ijms21010228"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-12-28T00:00:00Z"}}, {"id": "10.1890/04-1724", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:20:00Z", "type": "Journal Article", "created": "2007-06-04", "title": "Elevated CO2 stimulates net accumulations of carbon and nitrogen in land ecosystems: A meta-analysis", "description": "The capability of terrestrial ecosystems to sequester carbon (C) plays a critical role in regulating future climatic change yet depends on nitrogen (N) availability. To predict long-term ecosystem C storage, it is essential to examine whether soil N becomes progressively limiting as C and N are sequestered in long-lived plant biomass and soil organic matter. A critical parameter to indicate the long-term progressive N limitation (PNL) is net change in ecosystem N content in association with C accumulation in plant and soil pools under elevated CO2. We compiled data from 104 published papers that study C and N dynamics at ambient and elevated CO2. The compiled database contains C contents, N contents, and C:N ratio in various plant and soil pools, and root:shoot ratio. Averaged C and N pool sizes in plant and soil all significantly increase at elevated CO2 in comparison to those at ambient CO2, ranging from a 5% increase in shoot N content to a 32% increase in root C content. The C and N contents in litter pools are consistently higher in elevated than ambient CO2 among all the surveyed studies whereas C and N contents in the other pools increase in some studies and decrease in other studies. The high variability in CO2-induced changes in C and N pool sizes results from diverse responses of various C and N processes to elevated CO2. Averaged C:N ratios are higher by 3% in litter and soil pools and 11% in root and shoot pools at elevated relative to ambient CO2. Elevated CO2 slightly increases root:shoot ratio. The net N accumulation in plant and soil pools at least helps prevent complete down-regulation of, and likely supports, long-term CO2 stimulation of C sequestration. The concomitant C and N accumulations in response to rising atmospheric CO2 may reflect intrinsic nature of ecosystem development as revealed before by studies of succession over hundreds to millions of years.", "keywords": ["Soil", "Nitrogen", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Carbon Dioxide", "Plants", "15. Life on land", "Plant Roots", "Carbon", "Ecosystem", "Plant Physiological Phenomena", "Plant Shoots"]}, "links": [{"href": "https://doi.org/10.1890/04-1724"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1890/04-1724", "name": "item", "description": "10.1890/04-1724", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1890/04-1724"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-01-01T00:00:00Z"}}, {"id": "10.2307/1940889", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:20:33Z", "type": "Journal Article", "created": "2006-05-09", "title": "Effects Of Invasion Of An Aspen Forest (Canada) By Dendrobaena-Octaedra (Lumbricidae) On Plant-Growth", "description": "Effects of invasion of an aspen forest in the Canadian Rocky Mountains by the earthworm Dendrobaena octaedra (Savigny) on nutrient mineralization, soil microflora, and plant growth were investigated during the growth period of 1992. Experimental chambers with reconstructed forest floor were placed in the field and destructively sampled after 7 and 14 wk. D. octaedra enhanced the shoot biomass of the grass Agropyron trachycaulum (Link) Malte (Poaceae) and increased the shoot\uffe2\uff80\uff94to\uffe2\uff80\uff94root ratio during early plant growth. Microbial biomass, basal respiration and respiratory quotient qCO2 in L/F layer material were reduced by D. octaedra but increased in the H layer. The nutrient (NH4+, NO3\uffe2\uff80\uff94, PO43\uffe2\uff80\uff94) content in soil was also affected by D. octaedra but the effects were small. Effects of the earthworms on soil nutrient content were masked by the great variation in the data and by leaching of nutrients from experimental chambers.
", "keywords": ["roots", "microbes and plants", "soil chemistry", "growth", "populus", "microflora and plants", "Invasion effects on nutrients", "Alberta", "forest soils", "microflora and plants in aspen forest", "Dendrobaena octaedra (Oligochaeta): Element cycles", "Forest and woodland", "nutrients", "biomass production", "Invasion consequences for ecosystem processes in forest soils", "impacts of invasion in aspen forest soils", "mineralization", "Annelids", "effects", "invasion impacts on ecosystem processes", "forests", "2. Zero hunger", "plant morphology", "effects on nutrients", "biomass", "soil fertility", "grasslands", "Habitat colonization", "KananaskisValley", "woodland grasslands", "Dispersal", "04 agricultural and veterinary sciences", "15. Life on land", "invasion", "Invasion of aspen forest soils effects on nutrients", "Invertebrates", "soil biology", "introduced species", "Soil habitat", "Aspen forest soils", "Nutrient mineralization", "0401 agriculture", " forestry", " and fisheries", "dendrobaena", "Impact on habitat", "root shoot ratio", "elymus trachycaulus", "soil fauna", "forest trees", "shoots"], "contacts": [{"organization": "Scheu, Stefan, Parkinson, Dennis,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.2307/1940889"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2307/1940889", "name": "item", "description": "10.2307/1940889", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2307/1940889"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1994-12-01T00:00:00Z"}}, {"id": "2dcc638c-6eca-4f91-a860-8ccd5cf3a2ef", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[9.02, 52.76], [9.02, 52.76], [9.03, 52.76], [9.03, 52.76], [9.02, 52.76]]]}, "properties": {"themes": [{"concepts": [{"id": "farming"}], "scheme": "https://standards.iso.org/iso/19139/resources/gmxCodelists.xml#MD_TopicCategoryCode"}, {"concepts": [{"id": "Zea mays"}, {"id": "Poaceae"}, {"id": "Shoots"}, {"id": "leaves"}, {"id": "Nitrates"}, {"id": "Nitrogen"}, {"id": "Elements"}, {"id": "Chlorophylls"}, {"id": "nutrient cycling in ecosystems"}, {"id": "Plant morphology"}, {"id": "Catch cropping"}, {"id": "Crop rotation"}, {"id": "Catch crops"}, {"id": "Sinapis alba"}, {"id": "Phacelia tanacetifolia"}, {"id": "Mustard"}, {"id": "Trifolium alexandrinum"}, {"id": "Mustard"}, {"id": "Phacelia"}, {"id": "oats"}, {"id": "maize"}, {"id": "Phosphorus"}, {"id": "Potassium"}, {"id": "Iron"}, {"id": "Carbon"}, {"id": "Magnesium"}, {"id": "Zinc"}, {"id": "Manganese"}, {"id": "Tillering"}, {"id": "biomass"}], "scheme": "AGROVOC Multilingual agricultural thesaurus"}, {"concepts": [{"id": "Landwirtschaftliche Anlagen und Aquakulturanlagen"}], "scheme": "GEMET - INSPIRE themes, version 1.0"}, {"concepts": [{"id": "Maize"}, {"id": "Nutritional state"}, {"id": "pre-grown catch crops mineral elements"}, {"id": "opendata"}], "scheme": "Individual"}], "rights": "Reports, articles, papers, scientific and non - scientific works of any form, including tables, maps, or any other kind of output, in printed or electronic form, based in whole or in part on the data supplied, must contain an acknowledgement of the form: \"Data reused from the BonaRes Data Centre www.bonares.de. This data were created as part of BonaRes Module A-Project - CATCHY's research activities.\n\nAlthough every care has been taken in preparing and testing the data, BonaRes Module A - Project - CATCHY and BonaRes Data Centre cannot guarantee that the data are correct; neither does BonaRes Module A - Project and BonaRes Data Centre accept any liability whatsoever for any error, missing data or omission in the data, or for any loss or damage arising from its use. The BonaRes Module A-Project-CATCHY and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data. The access to this data is restricted during embargo time. If prior access is requested, contact the data owner / author.", "updated": "2019-06-17", "type": "Dataset", "created": "2019-01-09", "language": "eng", "title": "Shoot development and nutritional status of maize 1st crop rotation cycle", "description": "A central aspect when including catch crops into a crop rotation is the conservation of nutrients in their biomass for the subsequently grown crop. However, the nutrient carry-over to the following crop depends not only on the amount of nutrients accumulated in individual catch crop plant materials but also on the specific degradation properties of their tissues, i.e. the temporal quantitative and qualitative release of scavenged nutrients. In our experiment we investigated the morphological and nutritional response of maize to 6 different pre-grown catch crop variants including pure stands and mixtures. \nAt two field sites in Germany (Asendorf - Lower Saxony and Triesdorf - Bavaria), maize (seeding rate: 9.4 seeds m-2) was established either after pure cultures of mustard, phacelia, bristle oat and Egyptian clover, after a mixture of these 4 species or after a commercial mixture of the DSV with a higher species diversity called TerraLife MaisPro. Their single-species nutrient accumulation was already published in the BonaRes-database under \u201cCatch crop nutrient uptake 1st crop rotation cycle\u201d. Fallow plots were included as control. Maize was fertilized with 160 kg N ha-1 in Asendorf and 190 kg N ha-1 in Triesdorf. Since nutrient release from catch cops might temporarily vary, we studied the morphological and nutritional response of maize at 4 developmental stages ranging from leaf development over shoot elongation and flowering to cob development. As morphological parameters we investigated the number of leaves, tillers and cobs. In order to study the nutritional response we examined the shoot biomass, chlorophyll content or SPAD values and different nutrient concentrations in young and old leaves as well as the nitrate concentration in the press sap obtained from a 1 cm-piece of the stem base as marker for the nitrogen nutritional status. At both locations, the experiment was repeated in two subsequent years (2016 and 2017) and represented each the initial starting point of a wheat-catch crop-maize long-term rotation. Thus, maize response was tested in total in 4 environments. \nIn general we could not observe any significant impact of the pre-grown catch crop variant on morphological or nutritional shoot parameters at any of the investigated developmental stages and in none of the test environments. However, catch crop effects often develop in the long run when included regularly in a crop rotation.", "formats": [{"name": "CSV"}], "keywords": ["Zea mays", "Poaceae", "Shoots", "leaves", "Nitrates", "Nitrogen", "Elements", "Chlorophylls", "nutrient cycling in ecosystems", "Plant morphology", "Catch cropping", "Crop rotation", "Catch crops", "Sinapis alba", "Phacelia tanacetifolia", "Mustard", "Trifolium alexandrinum", "Mustard", "Phacelia", "oats", "maize", "Phosphorus", "Potassium", "Iron", "Carbon", "Magnesium", "Zinc", "Manganese", "Tillering", "biomass", "Landwirtschaftliche Anlagen und Aquakulturanlagen", "Maize", "Nutritional state", "pre-grown catch crops mineral elements", "opendata"], "contacts": [{"name": "Heuermann, Diana", "organization": "Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben", "position": "Staff member (Molecular Plant Nutrition)", "roles": ["author"], "phones": [{"value": "0049 39482 5514"}], "emails": [{"value": "heuermannd@ipk-gatersleben.de"}], "addresses": [{"deliveryPoint": ["Correnstra\u00dfe 3"], "city": "Stadt Seeland", "administrativeArea": "Saxony-Anhalt", "postalCode": "06466", "country": "Germany"}], "links": [{"href": null}]}, {"name": "Wir\u00e9n, Nicolaus von", "organization": "Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben", "position": "Department head", "roles": ["projectLeader"], "phones": [{"value": "0049 39482 5603"}], "emails": [{"value": "vonwiren@ipk-gatersleben.de"}], "addresses": [{"deliveryPoint": ["Correnstra\u00dfe 3"], "city": "Stadt Seeland", "administrativeArea": "Saxony-Anhalt", "postalCode": "06466", "country": "Germany"}], "links": [{"href": null}]}, {"name": "BonaRes Data Centre", "organization": "Leibniz Centre for Agricultural Landscape Research (ZALF)", "position": "Research Platform 'Data' - WG Geodata", "roles": ["publisher"], "phones": [{"value": "+49 33432 82 171"}], "emails": [{"value": "bonares-datenzentrum@zalf.de"}], "addresses": [{"deliveryPoint": ["Eberswalder Strasse 84"], "city": "M\u00fcncheberg", "administrativeArea": "Brandenburg", "postalCode": "15374", "country": "Germany"}], "links": [{"href": null}]}, {"organization": "Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben", "roles": ["contributor"]}], "title_alternate": "Biomass, development and nutrient accumulation in the above-ground biomass of maize after different catch crop variants in the first cycle of a wheat-catch crop-maize long-term rotation"}, "links": [{"href": "https://maps.bonares.de/mapapps/resources/apps/bonares/index.html?lang=en&doi=2dcc638c-6eca-4f91-a860-8ccd5cf3a2ef", "rel": "download"}, {"rel": "self", "type": "application/geo+json", "title": "2dcc638c-6eca-4f91-a860-8ccd5cf3a2ef", "name": "item", "description": "2dcc638c-6eca-4f91-a860-8ccd5cf3a2ef", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2dcc638c-6eca-4f91-a860-8ccd5cf3a2ef"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-06-17T00:00:00Z"}}, {"id": "10138/574665", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:24:37Z", "type": "Journal Article", "created": "2024-03-29", "title": "Aerobic methane production in Scots pine shoots is independent of drought or photosynthesis", "description": "Summary
Shoot\uffe2\uff80\uff90level emissions of aerobically produced methane (CH4) may be an overlooked source of tree\uffe2\uff80\uff90derived CH4, but insufficient understanding of the interactions between their environmental and physiological drivers still prevents the reliable upscaling of canopy CH4 fluxes.
We utilised a novel automated chamber system to continuously measure CH4 fluxes from the shoots of Pinus sylvestris (Scots pine) saplings under drought to investigate how canopy CH4 fluxes respond to the drought\uffe2\uff80\uff90induced alterations in their physiological processes and to isolate the shoot\uffe2\uff80\uff90level production of CH4 from soil\uffe2\uff80\uff90derived transport and photosynthesis.
We found that aerobic CH4 emissions are not affected by the drought\uffe2\uff80\uff90induced stress, changes in physiological processes, or decrease in photosynthesis. Instead, these emissions vary on short temporal scales with environmental drivers such as temperature, suggesting that they result from abiotic degradation of plant compounds.
Our study shows that aerobic CH4 emissions from foliage are distinct from photosynthesis\uffe2\uff80\uff90related processes. Thus, instead of photosynthesis rates, it is more reliable to construct regional and global estimates for the aerobic CH4 emission based on regional differences in foliage biomass and climate, also accounting for short\uffe2\uff80\uff90term variations of weather variables such as air temperature and solar radiation.
While the importance of plant water relations in determining crop response to soil water availability is difficult to over\uffe2\uff80\uff90emphasise, under many circumstances, plants maintain their leaf water status as the soil dries yet shoot gas exchange and growth is restricted. Such observations lead to development of a paradigm that root\uffe2\uff80\uff90to\uffe2\uff80\uff90shoot signals regulate shoot physiology, and a conceptual framework to test the importance of different signals such as plant hormones in these physiological processes. Nevertheless, shoot\uffe2\uff80\uff90to\uffe2\uff80\uff90root (hormonal) signalling also plays an important role in regulating root growth and function and may dominate when larger quantities of a hormone are produced in the shoots than the roots. Here, we review the evidence for acropetal and basipetal transport of three different plant hormones (abscisic acid, jasmonates, strigolactones) that have antitranspirant effects, to indicate the origin and action of these signalling systems. The physiological importance of each transport pathway likely depends on the specific environmental conditions the plant is exposed to, specifically whether the roots or shoots are the first to lose turgor when exposed to drying soil or elevated atmospheric demand, respectively. All three hormones can interact to influence each other's synthesis, degradation and intracellular signalling to augment or attenuate their physiological impacts, highlighting the complexity of unravelling these signalling systems. Nevertheless, such complexity suggests crop improvement opportunities to select for allelic variation in the genes affecting hormonal regulation, and (in selected crops) to augment root\uffe2\uff80\uff93shoot communication by judicious selection of rootstock\uffe2\uff80\uff93scion combinations to ameliorate abiotic stresses.IRON\uffe2\uff80\uff90REGULATED TRANSPORTER1 (IRT1) is the root high\uffe2\uff80\uff90affinity ferrous iron (Fe) uptake system and indispensable for the completion of the life cycle of Arabidopsis thaliana without vigorous Fe supplementation. Here we provide evidence supporting a second role of IRT1 in root\uffe2\uff80\uff90to\uffe2\uff80\uff90shoot partitioning of Fe. We show that irt1 mutants overaccumulate Fe in roots, most prominently in the cortex of the differentiation zone in irt1\uffe2\uff80\uff902, compared to the wild type. Shoots of irt1\uffe2\uff80\uff902 are severely Fe\uffe2\uff80\uff90deficient according to Fe content and marker transcripts, as expected. We generated irt1\uffe2\uff80\uff902 lines producing IRT1 mutant variants carrying single amino\uffe2\uff80\uff90acid substitutions of key residues in transmembrane helices IV and V, Ser206 and His232, which are required for transport activity in yeast. Root short\uffe2\uff80\uff90term 55Fe uptake rates were uninformative concerning IRT1\uffe2\uff80\uff90mediated transport. Overall irt1\uffe2\uff80\uff90like concentrations of the secondary substrate Mn suggested that the transgenic Arabidopsis lines also remain incapable of IRT1\uffe2\uff80\uff90mediated root Fe uptake. Yet, IRT1S206A partially complements rosette dwarfing and leaf chlorosis of irt1\uffe2\uff80\uff902, as well as root\uffe2\uff80\uff90to\uffe2\uff80\uff90shoot Fe partitioning and gene expression defects of irt1\uffe2\uff80\uff902, all of which are fully complemented by wild\uffe2\uff80\uff90type IRT1. Taken together, these results suggest a regulatory function for IRT1 in root\uffe2\uff80\uff90to\uffe2\uff80\uff90shoot Fe partitioning that does not require Fe transport activity of IRT1. Among the genes of which transcript levels are partially dependent on IRT1, we identify MYB DOMAIN PROTEIN10, MYB DOMAIN PROTEIN72 and NICOTIANAMINE SYNTHASE4 as candidates for effecting IRT1\uffe2\uff80\uff90dependent Fe mobilization in roots. Understanding the biological functions of IRT1 will help to improve Fe nutrition and the nutritional quality of agricultural crops.Different phytohormones can act as root\uffe2\uff80\uff90to\uffe2\uff80\uff90shoot signalling molecules in response to soil drying. Recent findings suggest that root ABA levels are predominantly leaf\uffe2\uff80\uff90sourced and not locally synthesized, thus, ABA exported from the roots in the xylem is mostly recycled from the shoot. To explain the differential root hormone accumulation observed under partial rootzone drying (PRD) that imposes distinct dry and wet parts of the root zone, we grafted \uffe2\uff80\uff9ctwo\uffe2\uff80\uff90root, one\uffe2\uff80\uff90shoot\uffe2\uff80\uff9d soybean plants to independently assess xylem export of different phytohormones from either part of the root zone. Grafts were subjected to a combination of girdling (either part, all, or none of the rootzone) and irrigation (homogenously well\uffe2\uff80\uff90watered (WW) and PRD). PRD did not increase foliar ABA but decreased stomatal conductance, attributed to decreased leaf water potential and/or increased xylem sap ABA, JA, or ACC concentrations. In contrast, the foliar ABA increments that accompanied girdling\uffe2\uff80\uff90induced stomatal closure were proportional to the root fraction to which phloem transport was interrupted. Irrespective of girdling, root ABA accumulation (and xylem ABA export from) was highest in the dry PRD rootzone, xylem jasmonic acid (JA) in the wet PRD rootzone, and xylem ACC in both rootzones of PRD plants. Thus, soil drying of the dry root zone and transient overwatering of the wet root zone enhanced ACC export in PRD plants. We conclude that root water status during PRD enhances root ABA, JA and ACC synthesis and xylem export, independent of shoot\uffe2\uff80\uff90to\uffe2\uff80\uff90root transport.Different phytohormones can act as root\uffe2\uff80\uff90to\uffe2\uff80\uff90shoot signalling molecules in response to soil drying. Recent findings suggest that root ABA levels are predominantly leaf\uffe2\uff80\uff90sourced and not locally synthesized, thus, ABA exported from the roots in the xylem is mostly recycled from the shoot. To explain the differential root hormone accumulation observed under partial rootzone drying (PRD) that imposes distinct dry and wet parts of the root zone, we grafted \uffe2\uff80\uff9ctwo\uffe2\uff80\uff90root, one\uffe2\uff80\uff90shoot\uffe2\uff80\uff9d soybean plants to independently assess xylem export of different phytohormones from either part of the root zone. Grafts were subjected to a combination of girdling (either part, all, or none of the rootzone) and irrigation (homogenously well\uffe2\uff80\uff90watered (WW) and PRD). PRD did not increase foliar ABA but decreased stomatal conductance, attributed to decreased leaf water potential and/or increased xylem sap ABA, JA, or ACC concentrations. In contrast, the foliar ABA increments that accompanied girdling\uffe2\uff80\uff90induced stomatal closure were proportional to the root fraction to which phloem transport was interrupted. Irrespective of girdling, root ABA accumulation (and xylem ABA export from) was highest in the dry PRD rootzone, xylem jasmonic acid (JA) in the wet PRD rootzone, and xylem ACC in both rootzones of PRD plants. Thus, soil drying of the dry root zone and transient overwatering of the wet root zone enhanced ACC export in PRD plants. We conclude that root water status during PRD enhances root ABA, JA and ACC synthesis and xylem export, independent of shoot\uffe2\uff80\uff90to\uffe2\uff80\uff90root transport.