{"type": "FeatureCollection", "features": [{"id": "10.1007/s11104-016-2949-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:15:07Z", "type": "Journal Article", "created": "2016-06-14", "title": "Phosphorus Availability And Microbial Community In The Rhizosphere Of Intercropped Cereal And Legume Along A P-Fertilizer Gradient", "description": "Positive below-ground interactions (facilitation) should be more pronounced when resources limit crop growth, according to the stress-gradient hypothesis. Our aim was to test this hypothesis for intercropped durum wheat and faba bean along a P-fertilizer gradient. A field experiment was conducted in a long-term P-fertilizer trial with three rates of P-fertilization (No, Low and High P). Microbial biomass was assessed by chloroform fumigation-extraction. Quantitative PCR was applied to evaluate the abundance of relevant microbial groups. Phosphorus availability and microbial biomass systematically increased in the rhizosphere compared to bulk soil. P-fertilization resulted in higher abundance of targeted bacterial phyla, whole bacterial and fungal communities, and depressed mycorrhizal colonization of durum wheat, but not faba bean. Microbial biomass carbon significantly increased in the rhizosphere only in P-fertilized treatments, pointing to P limitation of microbial communities. Intercropping yielded a significant effect on rhizosphere microbial properties only at High P. Microbial biomass P increased in the rhizosphere of intercropped faba bean only at No P level, and was thus the sole finding supporting the stress-gradient hypothesis. P-fertilization was the main driver of microbial communities in this field trial, and P-fertilizer application modulated the species-specific effect in the intercrop. Plant performance did not validate the stress-gradient hypothesis as positive plant-plant interactions occurred regardless of the level of P-fertilization.", "keywords": ["[SDE] Environmental Sciences", "engrais phosphat\u00e9", "F08 - Syst\u00e8mes et modes de culture", "[SDV]Life Sciences [q-bio]", "F62 - Physiologie v\u00e9g\u00e9tale - Croissance et d\u00e9veloppement", "mycorhization", "Triticum turgidum", "630", "fertilisation", "[SHS]Humanities and Social Sciences", "http://aims.fao.org/aos/agrovoc/c_37554", "http://aims.fao.org/aos/agrovoc/c_5800", "http://aims.fao.org/aos/agrovoc/c_10795", "http://aims.fao.org/aos/agrovoc/c_24199", "2. Zero hunger", "Mycorrhizal colonization", "04 agricultural and veterinary sciences", "Vicia faba", "[SDV] Life Sciences [q-bio]", "fertilit\u00e9 du sol", "http://aims.fao.org/aos/agrovoc/c_6569", "Rhizosphere", "Long-term fertilization", "[SDE]Environmental Sciences", "[SHS] Humanities and Social Sciences", "Intercrop", "http://aims.fao.org/aos/agrovoc/c_8220", "rhizosph\u00e8re", "http://aims.fao.org/aos/agrovoc/c_4819", "http://aims.fao.org/aos/agrovoc/c_7170", "plante c\u00e9r\u00e9ali\u00e8re", "flore microbienne", "disponibilit\u00e9 nutriments (sol)", "http://aims.fao.org/aos/agrovoc/c_25512", "mod\u00e8le math\u00e9matique", "http://aims.fao.org/aos/agrovoc/c_36163", "Microbial community", "http://aims.fao.org/aos/agrovoc/c_3081", "phosphate", "P availability", "P34 - Biologie du sol", "15. Life on land", "http://aims.fao.org/aos/agrovoc/c_16367", "plante l\u00e9gumi\u00e8re", "http://aims.fao.org/aos/agrovoc/c_7958", "628", "http://aims.fao.org/aos/agrovoc/c_3910", "http://aims.fao.org/aos/agrovoc/c_35986", "0401 agriculture", " forestry", " and fisheries", "culture intercalaire", "http://aims.fao.org/aos/agrovoc/c_8165", "F04 - Fertilisation"]}, "links": [{"href": "https://doi.org/10.1007/s11104-016-2949-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-016-2949-3", "name": "item", "description": "10.1007/s11104-016-2949-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-016-2949-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-06-14T00:00:00Z"}}, {"id": "10.1101/2025.03.30.646173", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:17:40Z", "type": "Journal Article", "created": "2025-08-19", "title": "Deciphering spatiotemporal patterns of rhizodeposition with a functional-structural root model: RhizoDep", "description": "Abstract                                        Background and Aims                     <p>Rhizodeposition, i.e. the release of organic matters by roots, constitutes a significant fraction of the plant carbon (C) budget and plays a key role in plant-soil interactions. However, its spatial and temporal dynamics remain poorly understood.</p>                                                           Methods                     <p>                       We developed                       RhizoDep,                       a new functional-structural root model that simulates 3D root growth, respiration, and rhizodeposition based on C balance and root morphology at the individual root segment level.                     </p>                                                           Results                     <p>Our model successfully reproduced the dynamics of belowground C flows observed in a previous pulse-labelling field experiment on spring wheat. Our simulations revealed that root C exudation largely dominated over mucilage secretion and cap cells sloughing in terms of C release. The spatial distribution of exudation rate along the roots was driven by the preferential unloading of sugars to support root elongation and emergence, and was modulated by the formation of apoplastic barriers. Furthermore, our results demonstrated that, for a given C allocation flow to roots, variations in root hairs or lateral root number had minimal effects on rhizodeposition, whereas changes in root tissue density had a significant impact.</p>                                                           Conclusion                     <p>                       RhizoDep                       offers a new opportunity to explore the dynamics of C exchange at the plant-soil interface and to identify traits and environmental conditions that favor rhizodeposition.                     </p>", "keywords": ["cycle du carbone", "http://aims.fao.org/aos/agrovoc/c_24242", "Mucilage", "mod\u00e8le de simulation", "http://aims.fao.org/aos/agrovoc/c_16034", "enracinement", "bl\u00e9 de printemps", "hexose", "Root hairs", "[SDV.BV] Life Sciences [q-bio]/Vegetal Biology", "http://aims.fao.org/aos/agrovoc/c_11547", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "mucilage", "http://aims.fao.org/aos/agrovoc/c_6651", "http://aims.fao.org/aos/agrovoc/c_32027", "FSPM", "syst\u00e8me racinaire", "ArchiSimple", "Root exudation", "croissance", "Root architecture", "racine", "http://aims.fao.org/aos/agrovoc/c_3394", "http://aims.fao.org/aos/agrovoc/c_7337", "http://aims.fao.org/aos/agrovoc/c_6569", "http://aims.fao.org/aos/agrovoc/c_6649", "http://aims.fao.org/aos/agrovoc/c_17299", "[INFO.INFO-MO] Computer Science [cs]/Modeling and Simulation", "rhizosph\u00e8re", "Cells sloughing"]}, "links": [{"href": "https://doi.org/10.1101/2025.03.30.646173"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1101/2025.03.30.646173", "name": "item", "description": "10.1101/2025.03.30.646173", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1101/2025.03.30.646173"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-04-03T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=http%3A%2F%2Faims.fao.org%2Faos%2Fagrovoc%2Fc_6569&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=http%3A%2F%2Faims.fao.org%2Faos%2Fagrovoc%2Fc_6569&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=http%3A%2F%2Faims.fao.org%2Faos%2Fagrovoc%2Fc_6569&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=http%3A%2F%2Faims.fao.org%2Faos%2Fagrovoc%2Fc_6569&offset=2", "hreflang": "en-US"}], "numberMatched": 2, "numberReturned": 2, "distributedFeatures": [], "timeStamp": "2026-09-22T18:54:37.926960Z"}