{"type": "FeatureCollection", "features": [{"id": "10.1016/j.envres.2019.108608", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:15Z", "type": "Journal Article", "created": "2019-07-26", "title": "Antibiotic resistance gene distribution in agricultural fields and crops. A soil-to-food analysis", "description": "Despite the social concern about the generalization of antibiotic resistance hotspots worldwide, very little is known about the contribution of different potential sources to the global risk. Here we present a quantitative analysis of the distribution of Antibiotic Resistance Genes (ARGs) in soil, rhizospheric soil, roots, leaves and beans in tomato, lettuce and broad beans crops (165 samples in total), grown in nine commercial plots distributed in four geographical zones in the vicinity of Barcelona (North East Spain). We also analyzed five soil samples from a nearby forest, with no record of agricultural activities. DNA samples were analyzed for their content in the ARGs sul1, tetM, qnrS1, blaCTX-M-32, blaOXA-58, mecA, and blaTEM, plus the integron intI1, using qPCR methods. In addition, soil microbiomes from the different plots were analyzed by amplicon-targeted 16S rRNA gene sequencing. Our data show a decreasing gradient of ARG loads from soil to fruits and beans, the latter showing only from 0.1 to 0.01% of the abundance values in soil. The type of crop was the main determinant for both ARG distribution and microbiome composition among the different plots, with minor contributions of geographic location and irrigation water source. We propose that soil amendment and/or fertilization, more than irrigation water, are the main drivers of ARG loads on the edible parts of the crop, and that they should therefore be specifically controlled.", "keywords": ["0301 basic medicine", "2. Zero hunger", "Microbiomes", "Agriculture", "Drug Resistance", " Microbial", "Irrigation water", "15. Life on land", "01 natural sciences", "6. Clean water", "Anti-Bacterial Agents", "3. Good health", "qPCR", "Soil", "03 medical and health sciences", "Antibiotic resistance genes", "Genes", " Bacterial", "Spain", "RNA", " Ribosomal", " 16S", "Rhizosphere", "Endophytes", "Food Analysis", "Soil Microbiology", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envres.2019.108608"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envres.2019.108608", "name": "item", "description": "10.1016/j.envres.2019.108608", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envres.2019.108608"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-10-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2018.10.268", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:55Z", "type": "Journal Article", "created": "2018-10-22", "title": "Antibiotic resistance genes distribution in microbiomes from the soil-plant-fruit continuum in commercial Lycopersicon esculentum fields under different agricultural practices", "description": "While the presence of antibiotic resistance genes (ARGs) in agricultural soils and products has been firmly established, their distribution among the different plant parts and the contribution of agricultural practices, including irrigation with reclaimed water, have not been adequately addressed yet. To this end, we analyzed the levels of seven ARGs (sul1, blaTEM, blaCTX-M-32, mecA, qnrS1, tetM, blaOXA-58), plus the integrase gene intl1, in soils, roots, leaves, and fruits from two commercial tomato fields irrigated with either unpolluted groundwater or from a channel impacted by treated wastewater, using culture-independent, quantitative real-time PCR methods. ARGs and intl1 sequences were found in leaves and fruits at levels representing from 1 to 10% of those found in roots or soil. The relative abundance of intl1 sequences correlated with tetM, blaTEM, and sul1 levels, suggesting a high horizontal mobility potential for these ARGs. High-throughput 16S rDNA sequencing revealed microbiome differences both between sample types (soil plus roots versus leaves plus fruits) and sampling zones, and a correlation between the prevalence of Pseudomonadaceae and the levels of different ARGs, particularly in fruits and leaves. We concluded that both microbiome composition and ARGs levels in plants parts, including fruits, were likely influenced by agricultural practices.", "keywords": ["0301 basic medicine", "2. Zero hunger", "0303 health sciences", "Antibiotic resistance", "Microbiota", "Microbiomes", "Agriculture", "Drug Resistance", " Microbial", "Horizontal gene transfer", "Irrigation water", "15. Life on land", "6. Clean water", "qPCR", "Soil", "03 medical and health sciences", "Solanum lycopersicum", "Genes", " Bacterial", "Fruit", "Soil Microbiology", "Environmental Monitoring"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2018.10.268"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2018.10.268", "name": "item", "description": "10.1016/j.scitotenv.2018.10.268", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2018.10.268"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-02-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2023.167674", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:57Z", "type": "Journal Article", "created": "2023-10-07", "title": "Outdoor climate drives diversity patterns of dominant microbial taxa in caves worldwide", "description": "The cave microbiota is assumed to be shaped by indoor microclimate, biotic and abiotic factors, which are largely dependent from outside environmental conditions; however, this knowledge is available at local or regional scales only. To address this knowledge gap, we reanalyzed over 1050 bacterial and fungal communities of caves worldwide, and found that outdoor temperature and rainfall play a critical role in explaining differences in microbial diversity patterns of global caves, selecting specific dominant taxa across gradients of growing aridity conditions with arid climate leading to a reduction in total cave microbial diversity. Moreover, we found that fungal (from 186 to 1908 taxa) and bacterial (from 467 to 1619 taxa) diversity increased under temperate-tropical and temperate-continental climatic regions, respectively, highlighting an opposite preference for the two microbial compartments. We hypothesized that outdoor geographical, climatic variables and lithology are critical epistatic drivers in assembling microbial communities and their dominant taxa, whose ecological responses could be useful to predict the fate of these subterranean environments in the context of climate change. Our work elucidates the intimate connection between caves microbiota and surface ecosystems highlighting the sensitivity of cave microbial communities to climatic changes and environmental degradation. This work also provides a natural benchmark for the biogeographic information for caves globally and for protection strategies aiming at conservation of underground environments.", "keywords": ["Cave ecosystems", "Bacteria", "Geography", "Microbiota", "Microbiomes", "15. Life on land", "Microbial ecology", "Caves", "13. Climate action", "XXXXXX - Unknown", "Climate change", "Environmental drivers", "Top dominant species", "Mycobiome"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2023.167674"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2023.167674", "name": "item", "description": "10.1016/j.scitotenv.2023.167674", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2023.167674"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-01-01T00:00:00Z"}}, {"id": "10.1021/acs.est.0c06687", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:29Z", "type": "Journal Article", "created": "2021-02-10", "title": "Microbial Interactions Drive the Complete Catabolism of the Antibiotic Sulfamethoxazole in Activated Sludge Microbiomes", "description": "Microbial communities are believed to outperform monocultures in the complete catabolism of organic pollutants via reduced metabolic burden and increased robustness to environmental challenges; however, the interaction mechanism in functional microbiomes remains poorly understood. Here, three functionally differentiated activated sludge microbiomes (S1: complete catabolism of sulfamethoxazole (SMX); S2: complete catabolism of the phenyl part of SMX ([phenyl]-SMX) with stable accumulation of its heterocyclic product 3-amino-5-methylisoxazole (3A5MI); A: complete catabolism of 3A5MI rather than [phenyl]-SMX) were enriched. Combining time-series cultivation-independent microbial community analysis, DNA-stable isotope probing, molecular ecological network analysis, and cultivation-dependent function verification, we identified key players involved in the SMX degradation process. Paenarthrobacter and Nocardioides were primary degraders for the initial cleavage of the sulfonamide functional group (-C-S-N- bond) and 3A5MI degradation, respectively. Complete catabolism of SMX was achieved by their cross-feeding. The co-culture of Nocardioides, Acidovorax, and Sphingobium demonstrated that the nondegraders Acidovorax and Sphingobium were involved in the enhancement of 3A5MI degradation. Moreover, we unraveled the internal labor division patterns and connections among the active members centered on the two primary degraders. Overall, the proposed methodology is promisingly applicable and would help generate mechanistic, predictive, and operational understanding of the collaborative biodegradation of various contaminants. This study provides useful information for synthetic activated sludge microbiomes with optimized environmental functions.", "keywords": ["Sulfamethoxazole", "Physiology", "Science Policy", "analysis", "0211 other engineering and technologies", "02 engineering and technology", "Microbiology", "Environmental Sciences not elsewhere classified", "heterocyclic product 3-", "11. Sustainability", "Activated Sludge Microbiomes Microb.", "Acidovorax", "SMX degradation process", "Molecular Biology", "cultivation-dependent function veri.", "phenyl", "Ecology", "Sewage", "Microbiota", "catabolism", "Nocardioide", "Computational Biology", "Cell Biology", "6. Clean water", "Sphingobium", "Anti-Bacterial Agents", "sludge microbiomes", "Infectious Diseases", "Complete", "Biodegradation", " Environmental", "Microbial Interactions Drive", "degrader", "Microbial Interactions", "labor division patterns", "5MI degradation", "Water Pollutants", " Chemical", "Developmental Biology", "Biological Sciences not elsewhere classified"]}, "links": [{"href": "https://pubs.acs.org/doi/pdf/10.1021/acs.est.0c06687"}, {"href": "https://doi.org/10.1021/acs.est.0c06687"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%20%26amp%3B%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1021/acs.est.0c06687", "name": "item", "description": "10.1021/acs.est.0c06687", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1021/acs.est.0c06687"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-02-10T00:00:00Z"}}, {"id": "10.1099/mic.0.001477", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:18:32Z", "type": "Journal Article", "created": "2024-08-06", "title": "Mobility and growth in confined spaces are important mechanisms for the establishment of Bacillus subtilis in the rhizosphere", "description": "

The rhizosphere hosts complex and abundant microbiomes whose structure and composition are now well described by metagenomic studies. However, the dynamic mechanisms that enable micro-organisms to establish along a growing plant root are poorly characterized. Here, we studied how a motile bacterium utilizes the microhabitats created by soil pore space to establish in the proximity of plant roots. We have established a model system consisting of Bacillus subtilis and lettuce seedlings co-inoculated in transparent soil microcosms. We carried out live imaging experiments and developed image analysis pipelines to quantify the abundance of the bacterium as a function of time and position in the pore space. Results showed that the establishment of the bacterium in the rhizosphere follows a precise sequence of events where small islands of mobile bacteria were first seen forming near the root tip within the first 12\uffe2\uff80\uff9324\uffe2\uff80\uff89h of inoculation. Biofilm was then seen forming on the root epidermis at distances of about 700\uffe2\uff80\uff931000\uffe2\uff80\uff89\uffc2\uffb5m from the tip. Bacteria accumulated predominantly in confined pore spaces within 200\uffe2\uff80\uff89\uffc2\uffb5m from the root or the surface of a particle. Using probabilistic models, we could map the complete sequence of events and propose a conceptual model of bacterial establishment in the pore space. This study therefore advances our understanding of the respective role of growth and mobility in the efficient colonization of bacteria in the rhizosphere.The rhizosphere hosts complex and abundant microbiomes whose structure and composition are now well described by metagenomic studies. However, the dynamic mechanisms that enable micro-organisms to establish along a growing plant root are poorly characterized. Here, we studied how a motile bacterium utilizes the microhabitats created by soil pore space to establish in the proximity of plant roots. We have established a model system consisting of Bacillus subtilis and lettuce seedlings co-inoculated in transparent soil microcosms. We carried out live imaging experiments and developed image analysis pipelines to quantify the abundance of the bacterium as a function of time and position in the pore space. Results showed that the establishment of the bacterium in the rhizosphere follows a precise sequence of events where small islands of mobile bacteria were first seen forming near the root tip within the first 12\uffe2\uff80\uff9324\uffe2\uff80\uff89h of inoculation. Biofilm was then seen forming on the root epidermis at distances of about 700\uffe2\uff80\uff931000\uffe2\uff80\uff89\uffc2\uffb5m from the tip. Bacteria accumulated predominantly in confined pore spaces within 200\uffe2\uff80\uff89\uffc2\uffb5m from the root or the surface of a particle. Using probabilistic models, we could map the complete sequence of events and propose a conceptual model of bacterial establishment in the pore space. This study therefore advances our understanding of the respective role of growth and mobility in the efficient colonization of bacteria in the rhizosphere.