{"type": "FeatureCollection", "features": [{"id": "10.1016/j.tplants.2018.05.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:17:11Z", "type": "Journal Article", "created": "2018-06-15", "title": "Out of Shape During Stress: A Key Role for Auxin", "description": "In most abiotic stress conditions, including salinity and water deficit, the developmental plasticity of the plant root is regulated by the phytohormone auxin. Changes in auxin concentration are often attributed to changes in shoot-derived long-distance auxin flow. However, recent evidence suggests important contributions by short-distance auxin transport from local storage and local auxin biosynthesis, conjugation, and oxidation during abiotic stress. We discuss here current knowledge on long-distance auxin transport in stress responses, and subsequently debate how short-distance auxin transport and indole-3-acetic acid (IAA) metabolism play a role in influencing eventual auxin accumulation and signaling patterns. Our analysis stresses the importance of considering all these components together and highlights the use of mathematical modeling for predictions of plant physiological responses.", "keywords": ["0301 basic medicine", "0303 health sciences", "abiotic stress", "Indoleacetic Acids", "auxin transport", "mathematical modeling", "Biological Transport", "IAA homeostasis", "Models", " Theoretical", "Plants", "Plant Roots", "Article", "03 medical and health sciences", "Plant Growth Regulators", "root phenotypic plasticity", "Stress", " Physiological", "auxin", "Plant Physiological Phenomena", "Signal Transduction"]}, "links": [{"href": "https://doi.org/10.1016/j.tplants.2018.05.011"}, {"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.2018.05.011", "name": "item", "description": "10.1016/j.tplants.2018.05.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.tplants.2018.05.011"}, {"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": "10.1073/pnas.2201072119", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:18:01Z", "type": "Journal Article", "created": "2022-07-18", "title": "Ethylene inhibits rice root elongation in compacted soil via ABA- and auxin-mediated mechanisms", "description": "

Soil compaction represents a major agronomic challenge, inhibiting root elongation and impacting crop yields. Roots use ethylene to sense soil compaction as the restricted air space causes this gaseous signal to accumulate around root tips. Ethylene inhibits root elongation and promotes radial expansion in compacted soil, but its mechanistic basis remains unclear. Here, we report that ethylene promotes abscisic acid (ABA) biosynthesis and cortical cell radial expansion. Rice mutants of ABA biosynthetic genes had attenuated cortical cell radial expansion in compacted soil, leading to better penetration. Soil compaction-induced ethylene also up-regulates the auxin biosynthesis gene OsYUC8 . Mutants lacking OsYUC8 are better able to penetrate compacted soil. The auxin influx transporter OsAUX1 is also required to mobilize auxin from the root tip to the elongation zone during a root compaction response. Moreover, osaux1 mutants penetrate compacted soil better than the wild-type roots and do not exhibit cortical cell radial expansion. We conclude that ethylene uses auxin and ABA as downstream signals to modify rice root cell elongation and radial expansion, causing root tips to swell and reducing their ability to penetrate compacted soil. Cluster root (CR) is one of the most spectacular plant developmental adaptations to hostile environment. It can be found in a few species from a dozen botanical families, including white lupin (Lupinus albus) in the Fabaceae family. These amazing structures are produced in phosphate\uffe2\uff80\uff90deprived conditions and are made of hundreds of short roots also known as rootlets. White lupin is the only crop bearing CRs and is considered as the model species for CR studies. However, little information is available on CRs atypical development, including the molecular events that trigger their formation. To provide insights on CR formation, we performed an anatomical and cellular description of rootlet development in white lupin. Starting with a classic histological approach, we described rootlet primordium development and defined eight developmental stages from rootlet initiation to their emergence. Due to the major role of hormones in the developmental program of root system, we next focussed on auxin\uffe2\uff80\uff90related mechanisms. We observed the establishment of an auxin maximum through rootlet development in transgenic roots expressing the DR5:GUS auxin reporter. Expression analysis of the main auxin\uffe2\uff80\uff90related genes [TIR, Auxin Response Factor (ARF) and AUX/IAA] during a detailed time course revealed specific expression associated with the formation of the rootlet primordium. We showed that L. albus TRANSPORT INHIBITOR RESPONSE 1b is expressed during rootlet primordium formation and that L. albus AUXIN RESPONSE FACTOR 5 is expressed in the vasculature but absent in the primordium itself. Altogether, our results describe the very early cellular events leading to CR formation and reveal some of the auxin\uffe2\uff80\uff90related mechanisms.

", "keywords": ["0301 basic medicine", "racine laterale", "Plant Roots", "inhibiteur de transport d'auxine", "physiologie v\u00e9g\u00e9tale", "03 medical and health sciences", "Gene Expression Regulation", " Plant", "http://aims.fao.org/aos/agrovoc/c_16034", "[SDV.BV]Life Sciences [q-bio]/Vegetal Biology", "[SDV.BV] Life Sciences [q-bio]/Vegetal Biology", "Cloning", " Molecular", "Promoter Regions", " Genetic", "Plant Proteins", "580", "http://aims.fao.org/aos/agrovoc/c_25189", "0303 health sciences", "syst\u00e8me racinaire", "Vegetal Biology", "interaction sol racine", "Indoleacetic Acids", "Plants", " Genetically Modified", "http://aims.fao.org/aos/agrovoc/c_27527", "Lupinus", "Lupinus albus", "lupinus albus", "phosphate inorganique", "Biologie v\u00e9g\u00e9tale", "expression des g\u00e8nes", "http://aims.fao.org/aos/agrovoc/c_4464"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/ppl.12714"}, {"href": "https://doi.org/10.1111/ppl.12714"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Physiologia%20Plantarum", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/ppl.12714", "name": "item", "description": "10.1111/ppl.12714", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/ppl.12714"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-07-26T00:00:00Z"}}, {"id": "10.1146/annurev-arplant-050718-100005", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-25T16:19:14Z", "type": "Journal Article", "created": "2020-03-13", "title": "Salt Tolerance Mechanisms of Plants", "description": "

Crop loss due to soil salinization is an increasing threat to agriculture worldwide. This review provides an overview of cellular and physiological mechanisms in plant responses to salt. We place cellular responses in a time- and tissue-dependent context in order to link them to observed phases in growth rate that occur in response to stress. Recent advances in phenotyping can now functionally or genetically link cellular signaling responses, ion transport, water management, and gene expression to growth, development, and survival. Halophytes, which are naturally salt-tolerant plants, are highlighted as success stories to learn from. We emphasize that ( a) filling the major knowledge gaps in salt-induced signaling pathways, ( b) increasing the spatial and temporal resolution of our knowledge of salt stress responses, ( c) discovering and considering crop-specific responses, and ( d) including halophytes in our comparative studies are all essential in order to take our approaches to increasing crop yields in saline soils to the next level.

", "keywords": ["0301 basic medicine", "2. Zero hunger", "Salinity", "0303 health sciences", "Agriculture", "Salt-Tolerant Plants", "Salt Tolerance", "15. Life on land", "6. Clean water", "salinity", "ionic stress", "Soil", "03 medical and health sciences", "ABA", "developmental plasticity", "osmotic stress", "auxin"]}, "links": [{"href": "https://www.annualreviews.org/doi/pdf/10.1146/annurev-arplant-050718-100005"}, {"href": "https://doi.org/10.1146/annurev-arplant-050718-100005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Annual%20Review%20of%20Plant%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1146/annurev-arplant-050718-100005", "name": "item", "description": "10.1146/annurev-arplant-050718-100005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1146/annurev-arplant-050718-100005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-04-29T00:00:00Z"}}, {"id": "11104/0341036", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-25T16:24:46Z", "type": "Journal Article", "created": "2022-07-18", "title": "Ethylene inhibits rice root elongation in compacted soil via ABA- and auxin-mediated mechanisms", "description": "

Soil compaction represents a major agronomic challenge, inhibiting root elongation and impacting crop yields. Roots use ethylene to sense soil compaction as the restricted air space causes this gaseous signal to accumulate around root tips. Ethylene inhibits root elongation and promotes radial expansion in compacted soil, but its mechanistic basis remains unclear. Here, we report that ethylene promotes abscisic acid (ABA) biosynthesis and cortical cell radial expansion. Rice mutants of ABA biosynthetic genes had attenuated cortical cell radial expansion in compacted soil, leading to better penetration. Soil compaction-induced ethylene also up-regulates the auxin biosynthesis gene OsYUC8 . Mutants lacking OsYUC8 are better able to penetrate compacted soil. The auxin influx transporter OsAUX1 is also required to mobilize auxin from the root tip to the elongation zone during a root compaction response. Moreover, osaux1 mutants penetrate compacted soil better than the wild-type roots and do not exhibit cortical cell radial expansion. We conclude that ethylene uses auxin and ABA as downstream signals to modify rice root cell elongation and radial expansion, causing root tips to swell and reducing their ability to penetrate compacted soil.

(1) Background: Increasing salinity, further potentiated by climate change and soil degradation, will jeopardize food security even more. Therefore, there is an urgent need for sustainable agricultural practices capable of maintaining high crop yields despite adverse conditions. Here, we tested if wheat, a salt-sensitive crop, could be a good reservoir for halotolerant bacteria with plant growth-promoting (PGP) capabilities. (2) Methods: We used two agricultural soils from Algeria, which differ in salinity but are both used to grow wheat. Soil halotolerant bacterial strains were isolated and screened for 12 PGP traits related to phytohormone production, improved nitrogen and phosphorus availability, nutrient cycling, and plant defence. The four \u2018most promising\u2019 halotolerant PGPB strains were tested hydroponically on wheat by measuring their effect on germination, survival, and biomass along a salinity gradient. (3) Results: Two halotolerant bacterial strains with PGP traits were isolated from the non-saline soil and were identified as Bacillus subtilis and Pseudomonas fluorescens, and another two halotolerant bacterial strains with PGP traits were isolated from the saline soil and identified as B. megaterium. When grown under 250 mM of NaCl, only the inoculated wheat seedlings survived. The halotolerant bacterial strain that displayed all 12 PGP traits and promoted seed germination and plant growth the most was one of the B. megaterium strains isolated from the saline soil. Although they both belonged to the B. megaterium clade and displayed a remarkable halotolerance, the two bacterial strains isolated from the saline soil differed in two PGP traits and had different effects on plant performance, which clearly shows that PGP potential is not phylogenetically determined. (4) Conclusions: Our data highlight that salt-sensitive plants and non-saline soils can be reservoirs for halotolerant microbes with the potential to become effective and sustainable strategies to improve plant tolerance to salinity. However, these strains need to be tested under field conditions and with more crops before being considered biofertilizer candidates.

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Crop loss due to soil salinization is an increasing threat to agriculture worldwide. This review provides an overview of cellular and physiological mechanisms in plant responses to salt. We place cellular responses in a time- and tissue-dependent context in order to link them to observed phases in growth rate that occur in response to stress. Recent advances in phenotyping can now functionally or genetically link cellular signaling responses, ion transport, water management, and gene expression to growth, development, and survival. Halophytes, which are naturally salt-tolerant plants, are highlighted as success stories to learn from. We emphasize that ( a) filling the major knowledge gaps in salt-induced signaling pathways, ( b) increasing the spatial and temporal resolution of our knowledge of salt stress responses, ( c) discovering and considering crop-specific responses, and ( d) including halophytes in our comparative studies are all essential in order to take our approaches to increasing crop yields in saline soils to the next level.

", "keywords": ["2. Zero hunger", "0301 basic medicine", "Salinity", "0303 health sciences", "Agriculture", "Salt-Tolerant Plants", "Salt Tolerance", "15. Life on land", "6. Clean water", "salinity", "ionic stress", "Soil", "03 medical and health sciences", "ABA", "developmental plasticity", "osmotic stress", "auxin"]}, "links": [{"href": "https://www.annualreviews.org/doi/pdf/10.1146/annurev-arplant-050718-100005"}, {"href": "https://doi.org/3010798294"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Annual%20Review%20of%20Plant%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "3010798294", "name": "item", "description": "3010798294", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/3010798294"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-04-29T00:00:00Z"}}, {"id": "32167791", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-25T16:26:07Z", "type": "Journal Article", "created": "2020-03-13", "title": "Salt Tolerance Mechanisms of Plants", "description": "

Crop loss due to soil salinization is an increasing threat to agriculture worldwide. This review provides an overview of cellular and physiological mechanisms in plant responses to salt. We place cellular responses in a time- and tissue-dependent context in order to link them to observed phases in growth rate that occur in response to stress. Recent advances in phenotyping can now functionally or genetically link cellular signaling responses, ion transport, water management, and gene expression to growth, development, and survival. Halophytes, which are naturally salt-tolerant plants, are highlighted as success stories to learn from. We emphasize that ( a) filling the major knowledge gaps in salt-induced signaling pathways, ( b) increasing the spatial and temporal resolution of our knowledge of salt stress responses, ( c) discovering and considering crop-specific responses, and ( d) including halophytes in our comparative studies are all essential in order to take our approaches to increasing crop yields in saline soils to the next level.

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