{"type": "FeatureCollection", "features": [{"id": "10.1016/j.bej.2018.05.027", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:33Z", "type": "Journal Article", "created": "2018-06-01", "title": "Temperature control as key factor for optimal biohydrogen production from thermomechanical pulping wastewater", "description": "Abstract   This study evaluates the use of non-pretreated thermo-mechanical pulping (TMP) wastewater as a potential substrate for hydrogen production by dark fermentation. Batch incubations were conducted in a temperature gradient incubator at temperatures ranging from 37 to 80\u202f\u00b0C, using an inoculum from a thermophilic, xylose-fed, hydrogen-producing fluidised bed reactor. The aim was to assess the short-term response of the microbial communities to the different temperatures with respect to both hydrogen yield and composition of the active microbial community. High throughput sequencing (MiSeq) of the reversely transcribed 16S rRNA showed that Thermoanaerobacterium sp. dominated the active microbial community at 70\u202f\u00b0C, resulting in the highest hydrogen yield of 3.6 (\u00b10.1) mmol\u202fH2\u202fg\u22121 CODtot supplied. Lower hydrogen yields were obtained at the temperature range from 37 to 65\u202f\u00b0C, likely due to consumption of the produced hydrogen by homoacetogenesis. No hydrogen production was detected at temperatures above 70\u202f\u00b0C. Thermomechanical pulping wastewaters are released at high temperatures (50\u201380\u202f\u00b0C), and thus dark fermentation at 70\u202f\u00b0C could be sustained using the heat produced by the pulp and paper plant itself without any requirement for external heating.", "keywords": ["570", "13. Climate action", "219", "02 engineering and technology", "0204 chemical engineering", "01 natural sciences", "6. Clean water", "219 Environmental biotechnology", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.bej.2018.05.027"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biochemical%20Engineering%20Journal", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.bej.2018.05.027", "name": "item", "description": "10.1016/j.bej.2018.05.027", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.bej.2018.05.027"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-09-01T00:00:00Z"}}, {"id": "10.1016/j.biombioe.2018.10.004", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:35Z", "type": "Journal Article", "created": "2018-10-11", "title": "How and why does willow biochar increase a clay soil water retention capacity?", "description": "Abstract   Addition of biochar into a soil changes its water retention properties by modifying soil textural and structural properties. In addition, internal micrometer-scale porosity that is able to directly store readily plant available water affects soil water retention properties. This study shows how precise knowledge of the internal micrometer-scale pore size distribution of biochar can deepen the understanding of the biochar-water interactions in soils. The micrometer-scale porosity of willow biochar was quantitatively and qualitatively characterized using X-ray tomography, 3D image analysis and Helium ion microscopy. The effect of biochar application on clay soil water retention was studied by conventional water retention curve approach. The results indicate that the internal pores of biochar, with sizes of at 50 and 10\u202f\u03bcm (equivalent pore diameter), increased soil porosity and the amount of readily plant available water. After biochar addition, changes in soil porosity were detected at pore size regimes 5\u201310 and 25\u202f\u03bcm, i.e. biochar pore sizes multiplied by factor 0.5. The detected pore size distribution of biochar does not predict directly (1:1 compatibility) the changes observed in the soil moisture characteristics. It is likely that biochar chemistry and pore morphology affect biochar-water interactions via e.g. surface roughness and contact angle. In addition, biochar induced changes in soil structure and texture affected soil moisture characteristics. However, the approach presented is an attractive pathway to more generalized understanding on how and why biochar internal porosity affects soil moisture characteristics.", "keywords": ["570", "Fysiikka", "ta1171", "mikroskopia", "savi", "01 natural sciences", "630", "huokoisuus", "soil water retention", "tomografia", "219", "3D image analysis", "biochar", "3D-mallinnus", "ta216", "ta218", "219 Environmental biotechnology", "0105 earth and related environmental sciences", "x-ray tomography", "biohiili", "maaper\u00e4", "ta114", "Physics", "ta1182", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water", "mikrorakenteet", "plant available water", "helium ion microscopy", "0401 agriculture", " forestry", " and fisheries", "vesipitoisuus", "X-ray tomography"]}, "links": [{"href": "https://doi.org/10.1016/j.biombioe.2018.10.004"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biomass%20and%20Bioenergy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.biombioe.2018.10.004", "name": "item", "description": "10.1016/j.biombioe.2018.10.004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.biombioe.2018.10.004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-12-01T00:00:00Z"}}, {"id": "10.1016/j.biortech.2017.03.095", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:35Z", "type": "Journal Article", "created": "2017-03-20", "title": "Hydrothermal treatment followed by enzymatic hydrolysis and hydrothermal carbonization as means to valorise agro- and forest-based biomass residues", "description": "The suitability of several abundant but underutilized agro and forest based biomass residues for hydrothermal treatment followed by enzymatic hydrolysis as well as for hydrothermal carbonization was studied. The selected approaches represent simple biotechnical and thermochemical treatment routes suitable for wet biomass. Based on the results, the hydrothermal pre-treatment followed by enzymatic hydrolysis seemed to be most suitable for processing of carbohydrate rich corn leaves, corn stover, wheat straw and willow. High content of thermally stable components (i.e. lignin) and low content of ash in the biomass were advantageous for hydrothermal carbonization of grape pomace, coffee cake, Scots pine bark and willow.", "keywords": ["2. Zero hunger", "biomass", "Hydrolysis", "ta220", "0211 other engineering and technologies", "02 engineering and technology", "Forests", "15. Life on land", "enzyme hydrolysis", "Lignin", "Zea mays", "01 natural sciences", "7. Clean energy", "hydrothermal carbonization", "hydrothermal treatment", "lignocellulose", "13. Climate action", "ta219", "SDG 7 - Affordable and Clean Energy", "Biomass", "ta218", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.biortech.2017.03.095"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Bioresource%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.biortech.2017.03.095", "name": "item", "description": "10.1016/j.biortech.2017.03.095", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.biortech.2017.03.095"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-07-01T00:00:00Z"}}, {"id": "10.1016/j.envpol.2021.116897", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:57Z", "type": "Journal Article", "created": "2021-03-13", "title": "X-ray absorption spectroscopy evidence of sulfur-bound cadmium in the Cd-hyperaccumulator Solanum nigrum and the non-accumulator Solanum melongena", "description": "It has been proposed that non-protein thiols and organic acids play a major role in cadmium phytoavailability and distribution in plants. In the Cd-hyperaccumulator Solanum nigrum and non-accumulator Solanum melongena, the role of these organic ligands in the accumulation and detoxification mechanisms of Cd are debated. In this study, we used X-ray absorption spectroscopy to investigate Cd speciation in these plants (roots, stem, leaves) and in the soils used for their culture to unravel the plants responses to Cd exposure. The results show that Cd in the 100\u00a0mg\u00a0kg-1 Cd-doped clayey loam soil is sorbed onto iron oxyhydroxides. In both S.\u00a0nigrum and S.\u00a0melongena, Cd in roots and fresh leaves is mainly bound to thiol ligands, with a small contribution of inorganic S ligands in S.\u00a0nigrum leaves. We interpret the Cd binding to sulfur ligands as detoxification mechanisms, possibly involving the sequestration of Cd complexed with glutathione or phytochelatins in the plant vacuoles. In the stems, results show an increase binding of Cd to -O ligands (>50% for S.\u00a0nigrum). We suggest that Cd is partly complexed by organic acids for transportation in the sap.", "keywords": ["[SDE] Environmental Sciences", "0106 biological sciences", "570", "http://aims.fao.org/aos/agrovoc/c_28566", "cadmium", "http://aims.fao.org/aos/agrovoc/c_2219", "Speciation", "Plant Roots", "01 natural sciences", "[SDV.BV.BOT] Life Sciences [q-bio]/Vegetal Biology/Botanics", "d\u00e9toxification", "Soil Pollutants", "http://aims.fao.org/aos/agrovoc/c_32389", "Solanum melongena", "http://aims.fao.org/aos/agrovoc/c_5383", "Solanaceae", "Solanum nigrum", "0105 earth and related environmental sciences", "580", "Toxicity", "thiol", "X-Ray absorption spectroscopy", "[SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics", "http://aims.fao.org/aos/agrovoc/c_7731", "bioaccumulation", "Biodegradation", " Environmental", "X-Ray Absorption Spectroscopy", "acide organique", "http://aims.fao.org/aos/agrovoc/c_7218", "[SDE]Environmental Sciences", "http://aims.fao.org/aos/agrovoc/c_32250", "spectroscopie aux rayons x", "H50 - Troubles divers des plantes", "P02 - Pollution", "http://aims.fao.org/aos/agrovoc/c_1178", "Sulfur", "Cadmium"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2021.116897"}, {"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.2021.116897", "name": "item", "description": "10.1016/j.envpol.2021.116897", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2021.116897"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-06-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2004.03.010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:04Z", "type": "Journal Article", "created": "2004-06-12", "title": "Effects Of Chronic Nitrogen Amendment On Dissolved Organic Matter And Inorganic Nitrogen In Soil Solution", "description": "Abstract   Increased atmospheric deposition of N to forests is an issue of global concern, with largely undocumented long-term effects on soil solution chemistry. In contrast to bulk soil properties, which are typically slow to respond to a chronic stress, soil solution chemistry may provide an early indication of the long-term changes in soils associated with a chronic stress. At the Harvard Forest, soil solution was collected beneath the forest floor in zero tension lysimeters for 10 years (1993\u20132002) as part of an N saturation experiment. The experiment was begun in 1988 with 5 or 15\u00a0g\u00a0N\u00a0m\u22122 per year added to hardwood and pine forest plots, and our samples thus characterize the long-term response to N fertilization. Samples were routinely analyzed for inorganic nitrogen, dissolved organic nitrogen (DON), and dissolved organic carbon (DOC); selected samples were also analyzed to determine qualitative changes in the composition of dissolved organic matter. Fluxes of DOC, DON, and inorganic N were calculated based on modeled water loss from the forest floor and observed concentrations in lysimeter samples. The concentration and flux of inorganic N lost from the forest floor in percolating soil solution are strongly affected by N fertilization and have not shown any consistent trends over time. On average, inorganic N fluxes have reached or exceeded the level of fertilizer application in most plots. Concentrations of DOC were unchanged by N fertilization in both the hardwood and pine stands, with long-term seasonal averages ranging from 31\u201357\u00a0mg\u00a0l\u22121 (hardwood) and 36\u201393\u00a0mg\u00a0l\u22121 (pine). Annual fluxes of DOC ranged from 30\u201350\u00a0g\u00a0m\u22122 per year. DON concentrations more than doubled, resulting in a shift toward N-rich organic matter in soil solution percolating from the plots, and DON fluxes of 1\u20133\u00a0g\u00a0m\u22122 per year. The DOC:DON ratio of soil solution under high N application (10\u201320) was about half that of controls. The organic chemistry of soil solution undergoes large qualitative changes in response to N addition. With N saturation, there is proportionally more hydrophilic material in the total DON pool, and a lower C:N ratio in the hydrophobic fraction of the total DOM pool. Overall, our data show that fundamental changes in the chemistry of forest floor solution have occurred in response to N fertilization prior to initiation of our sampling. During the decade of this study (years 5\u201314 of N application) both inorganic N and dissolved organic matter concentrations have changed little despite the significant biotic changes that have accompanied N saturation.", "keywords": ["13. Climate action", "Ecology and Evolutionary Biology", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Scientific Contribution Number 2219", "Forest Sciences", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2004.03.010"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2004.03.010", "name": "item", "description": "10.1016/j.foreco.2004.03.010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2004.03.010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-07-01T00:00:00Z"}}, {"id": "10.1038/s41467-022-29161-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:17:38Z", "type": "Journal Article", "created": "2022-03-17", "title": "Structure and function of the soil microbiome underlying N2O emissions from global wetlands", "description": "Abstract<p>Wetland soils are the greatest source of nitrous oxide (N2O), a critical greenhouse gas and ozone depleter released by microbes. Yet, microbial players and processes underlying the N2O emissions from wetland soils are poorly understood. Using in situ N2O measurements and by determining the structure and potential functional of microbial communities in 645 wetland soil samples globally, we examined the potential role of archaea, bacteria, and fungi in nitrogen (N) cycling and N2O emissions. We show that N2O emissions are higher in drained and warm wetland soils, and are correlated with functional diversity of microbes. We further provide evidence that despite their much lower abundance compared to bacteria, nitrifying archaeal abundance is a key factor explaining N2O emissions from wetland soils globally. Our data suggest that ongoing global warming and intensifying environmental change may boost archaeal nitrifiers, collectively transforming wetland soils to a greater source of N2O.</p", "keywords": ["0301 basic medicine", "570", "571", "Supplementary Data", "QH301 Biology", "Science", "General Biochemistry", "Genetics and Molecular Biology", "Nitrous Oxide", "General Physics and Astronomy", "Soil Science", "551", "852993", "Article", "DH150187", "QH301", "Greenhouse Gases", "Soil", "03 medical and health sciences", "948219", "General", "Soil Microbiology", "0303 health sciences", "Microbiota", "Q", "General Chemistry", "15. Life on land", "6. Clean water", "BBS/e/F/000Pr10355", "13. Climate action", "BB/r012490/1", "Wetlands", "Biotechnology and Biological Sciences Research Council (BBSRC)", "Other", "European Research Council"]}, "links": [{"href": "https://pub.epsilon.slu.se/27540/1/bahram-m-et-al-220412.pdf"}, {"href": "https://ueaeprints.uea.ac.uk/id/eprint/84269/1/Published_Version.pdf"}, {"href": "https://www.nature.com/articles/s41467-022-29161-3.pdf"}, {"href": "https://doi.org/10.1038/s41467-022-29161-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature%20Communications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41467-022-29161-3", "name": "item", "description": "10.1038/s41467-022-29161-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41467-022-29161-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-03-17T00:00:00Z"}}, {"id": "10.15376/biores.13.3.5976-6002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:19:34Z", "type": "Journal Article", "created": "2022-09-21", "title": "Effects of Biomass Type, Carbonization Process, and Activation Method on the Properties of Bio-Based Activated Carbons", "description": "<p>Activated carbons (AC) serve as adsorbents in various applications requiring specific functionalities. In this study, the effects of biomass type, pre-carbonization process, and activation method on the properties of ACs were investigated. Chemical (KOH and H3PO4) and physical (CO2) activations were performed on slow pyrolyzed and hydrothermally carbonized (HTC) biochars produced from two feedstocks, willow and Scots pine bark (SPB). In addition, the adsorption capacities of the ACs were tested with two dyes and zinc metal. Distinct differences were found between the biochars and ACs regarding pore size distributions, surface area (238 \uffe2\uff80\uff93 3505 m2 g-1), and surface chemistry. KOH activation produced highly microporous ACs from all biochars, whereas with H3PO4 and CO2 there was also increase in the meso- and macroporosity with the HTC biochars. Adsorption capacity for dyes was dependent on the surface area, while for zinc it depended on AC\uffe2\uff80\uff99s pH. The results provide interesting insights into tailoring ACs for specific applications.</p>", "keywords": ["bark", "willow", "biohiili", "330", "Willow", "Activated carbon", "Activated carbon;", "pine bark", "pajut", "Pinus sylvestris", "tomography", "bio-based activated carbon", "620", "Biochar", "tomografia", "Pine bark", "SDG 13 - Climate Action", "Bio-based activated carbon", "activated carbon", "biochar", "ta219", "SDG 7 - Affordable and Clean Energy", "X-ray tomography"]}, "links": [{"href": "https://bioresources.cnr.ncsu.edu/wp-content/uploads/2018/06/BioRes_13_3_5976_Siipola_Effects_Biomass_Type_Carbonizat_Process_Activat_Method_Activ_C_13985.pdf"}, {"href": "https://doi.org/10.15376/biores.13.3.5976-6002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/BioResources", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.15376/biores.13.3.5976-6002", "name": "item", "description": "10.15376/biores.13.3.5976-6002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.15376/biores.13.3.5976-6002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-06-15T00:00:00Z"}}, {"id": "2164/19435", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:25:26Z", "type": "Journal Article", "created": "2022-03-17", "title": "Structure and function of the soil microbiome underlying N2O emissions from global wetlands", "description": "Abstract<p>Wetland soils are the greatest source of nitrous oxide (N2O), a critical greenhouse gas and ozone depleter released by microbes. Yet, microbial players and processes underlying the N2O emissions from wetland soils are poorly understood. Using in situ N2O measurements and by determining the structure and potential functional of microbial communities in 645 wetland soil samples globally, we examined the potential role of archaea, bacteria, and fungi in nitrogen (N) cycling and N2O emissions. We show that N2O emissions are higher in drained and warm wetland soils, and are correlated with functional diversity of microbes. We further provide evidence that despite their much lower abundance compared to bacteria, nitrifying archaeal abundance is a key factor explaining N2O emissions from wetland soils globally. Our data suggest that ongoing global warming and intensifying environmental change may boost archaeal nitrifiers, collectively transforming wetland soils to a greater source of N2O.</p", "keywords": ["0301 basic medicine", "570", "571", "Supplementary Data", "QH301 Biology", "Science", "General Biochemistry", "Genetics and Molecular Biology", "Nitrous Oxide", "General Physics and Astronomy", "Soil Science", "551", "852993", "Article", "DH150187", "QH301", "Greenhouse Gases", "Soil", "03 medical and health sciences", "948219", "General", "Soil Microbiology", "0303 health sciences", "Microbiota", "Q", "General Chemistry", "15. Life on land", "6. Clean water", "BBS/e/F/000Pr10355", "13. Climate action", "BB/r012490/1", "Wetlands", "Biotechnology and Biological Sciences Research Council (BBSRC)", "Other", "European Research Council"]}, "links": [{"href": "https://pub.epsilon.slu.se/27540/1/bahram-m-et-al-220412.pdf"}, {"href": "https://ueaeprints.uea.ac.uk/id/eprint/84269/1/Published_Version.pdf"}, {"href": "https://www.nature.com/articles/s41467-022-29161-3.pdf"}, {"href": "https://doi.org/2164/19435"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature%20Communications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2164/19435", "name": "item", "description": "2164/19435", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2164/19435"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-03-17T00:00:00Z"}}, {"id": "3137244153", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:25:59Z", "type": "Journal Article", "created": "2021-03-13", "title": "X-ray absorption spectroscopy evidence of sulfur-bound cadmium in the Cd-hyperaccumulator Solanum nigrum and the non-accumulator Solanum melongena", "description": "It has been proposed that non-protein thiols and organic acids play a major role in cadmium phytoavailability and distribution in plants. In the Cd-hyperaccumulator Solanum nigrum and non-accumulator Solanum melongena, the role of these organic ligands in the accumulation and detoxification mechanisms of Cd are debated. In this study, we used X-ray absorption spectroscopy to investigate Cd speciation in these plants (roots, stem, leaves) and in the soils used for their culture to unravel the plants responses to Cd exposure. The results show that Cd in the 100\u00a0mg\u00a0kg-1 Cd-doped clayey loam soil is sorbed onto iron oxyhydroxides. In both S.\u00a0nigrum and S.\u00a0melongena, Cd in roots and fresh leaves is mainly bound to thiol ligands, with a small contribution of inorganic S ligands in S.\u00a0nigrum leaves. We interpret the Cd binding to sulfur ligands as detoxification mechanisms, possibly involving the sequestration of Cd complexed with glutathione or phytochelatins in the plant vacuoles. In the stems, results show an increase binding of Cd to -O ligands (>50% for S.\u00a0nigrum). We suggest that Cd is partly complexed by organic acids for transportation in the sap.", "keywords": ["[SDE] Environmental Sciences", "0106 biological sciences", "570", "[CHIM.ANAL] Chemical Sciences/Analytical chemistry", "http://aims.fao.org/aos/agrovoc/c_28566", "cadmium", "http://aims.fao.org/aos/agrovoc/c_2219", "Speciation", "Plant Roots", "01 natural sciences", "[SDV.BV.BOT] Life Sciences [q-bio]/Vegetal Biology/Botanics", "d\u00e9toxification", "[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry", "[SDE.ES] Environmental Sciences/Environment and Society", "Soil Pollutants", "http://aims.fao.org/aos/agrovoc/c_32389", "Solanum melongena", "http://aims.fao.org/aos/agrovoc/c_5383", "Solanaceae", "Solanum nigrum", "0105 earth and related environmental sciences", "580", "Toxicity", "thiol", "X-Ray absorption spectroscopy", "[SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics", "3. Good health", "http://aims.fao.org/aos/agrovoc/c_7731", "bioaccumulation", "Biodegradation", " Environmental", "X-Ray Absorption Spectroscopy", "acide organique", "13. 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In the Cd-hyperaccumulator Solanum nigrum and non-accumulator Solanum melongena, the role of these organic ligands in the accumulation and detoxification mechanisms of Cd are debated. In this study, we used X-ray absorption spectroscopy to investigate Cd speciation in these plants (roots, stem, leaves) and in the soils used for their culture to unravel the plants responses to Cd exposure. The results show that Cd in the 100\u00a0mg\u00a0kg-1 Cd-doped clayey loam soil is sorbed onto iron oxyhydroxides. In both S.\u00a0nigrum and S.\u00a0melongena, Cd in roots and fresh leaves is mainly bound to thiol ligands, with a small contribution of inorganic S ligands in S.\u00a0nigrum leaves. We interpret the Cd binding to sulfur ligands as detoxification mechanisms, possibly involving the sequestration of Cd complexed with glutathione or phytochelatins in the plant vacuoles. In the stems, results show an increase binding of Cd to -O ligands (>50% for S.\u00a0nigrum). 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