{"type": "FeatureCollection", "features": [{"id": "10.1111/1462-2920.13956", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:19:18Z", "type": "Journal Article", "created": "2017-10-13", "title": "Type VI secretion systems in plant-associated bacteria", "description": "Summary<p>The type VI secretion system (T6SS) is a bacterial nanomachine used to inject effectors into prokaryotic or eukaryotic cells and is thus involved in both host manipulation and interbacterial competition. The T6SS is widespread among Gram\uffe2\uff80\uff90negative bacteria, mostly within the Proteobacterium Phylum. This secretion system is commonly found in commensal and pathogenic plant\uffe2\uff80\uff90associated bacteria. Phylogenetic analysis of phytobacterial T6SS clusters shows that they are distributed in the five main clades previously described (group 1\uffe2\uff80\uff935). The even distribution of the system among commensal and pathogenic phytobacteria suggests that the T6SS provides fitness and colonization advantages in planta and that the role of the T6SS is not restricted to virulence. This manuscript reviews the phylogeny and biological roles of the T6SS in plant\uffe2\uff80\uff90associated bacteria, highlighting a remarkable diversity both in terms of mechanism and function.</p>", "keywords": ["PROTEIN SECRETION", "0301 basic medicine", "570", "VIBRIO-CHOLERAE", "PATHOGENIC BACTERIA", "Microbiology", "03 medical and health sciences", "Bacterial Proteins", "Proteobacteria", "Phylogeny", "Plant Diseases", "2. Zero hunger", "0303 health sciences", "Science & Technology", "Virulence", "PSEUDOMONAS-AERUGINOSA", "Minireviews", "Plants", "Type VI Secretion Systems", "IN-SILICO ANALYSIS", "AGROBACTERIUM-TUMEFACIENS", "INTERBACTERIAL COMPETITION", "GENOMIC ANALYSIS", "EFFECTORS", "VIRULENCE", "Life Sciences & Biomedicine", "0605 Microbiology"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/1462-2920.13956"}, {"href": "https://doi.org/10.1111/1462-2920.13956"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/1462-2920.13956", "name": "item", "description": "10.1111/1462-2920.13956", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/1462-2920.13956"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-11-10T00:00:00Z"}}, {"id": "10.1111/1462-2920.15647", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:19:18Z", "type": "Journal Article", "created": "2021-06-17", "title": "\u2018Cry\u2010for\u2010help\u2019 in contaminated soil: a dialogue among plants and soil microbiome to survive in hostile conditions", "description": "Summary<p>An open question in environmental ecology regards the mechanisms triggered by root chemistry to drive the assembly and functionality of a beneficial microbiome to rapidly adapt to stress conditions. This phenomenon, originally described in plant defence against pathogens and predators, is encompassed in the \uffe2\uff80\uff98cry\uffe2\uff80\uff90for\uffe2\uff80\uff90help\uffe2\uff80\uff99 hypothesis. Evidence suggests that this mechanism may be part of the adaptation strategy to ensure the holobiont fitness in polluted environments. Polychlorinated biphenyls (PCBs) were considered as model pollutants due to their toxicity, recalcitrance and poor phyto\uffe2\uff80\uff90extraction potential, which lead to a plethora of phytotoxic effects and rise environmental safety concerns. Plants have inefficient detoxification processes to catabolize PCBs, even leading to by\uffe2\uff80\uff90products with a higher toxicity. We propose that the \uffe2\uff80\uff98cry\uffe2\uff80\uff90for\uffe2\uff80\uff90help\uffe2\uff80\uff99 mechanism could drive the exudation\uffe2\uff80\uff90mediated recruitment and sustainment of the microbial services for PCBs removal, exerted by an array of anaerobic and aerobic microbial degrading populations working in a complex metabolic network. Through this synergistic interaction, the holobiont copes with the soil contamination, releasing the plant from the pollutant stress by the ecological services provided by the boosted metabolism of PCBs microbial degraders. Improving knowledge of root chemistry under PCBs stress is, therefore, advocated to design rhizoremediation strategies based on plant microbiome engineering.</p>", "keywords": ["0301 basic medicine", "2. Zero hunger", "0303 health sciences", "Microbiota", "Minireviews", "15. Life on land", "Polychlorinated Biphenyls", "6. Clean water", "Soil", "03 medical and health sciences", "Biodegradation", " Environmental", "13. 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In these environments, microorganisms endure a multitude of physicochemical stresses, including low water potential, carbon and nitrogen starvation, and extreme temperatures. In this review, we summarize our current understanding of the energetic mechanisms and trophic dynamics that underpin microbial function in desert ecosystems. Accumulating evidence suggests that dormancy is a common strategy that facilitates microbial survival in response to water and carbon limitation.</p></article>", "keywords": ["0301 basic medicine", "dormancy", "CYANOBACTERIAL EXOPOLYSACCHARIDES", "Trace gas", "Microbiology", "SOIL CRUSTS", "Energy reserve", "HIGH-AFFINITY", "03 medical and health sciences", "trace gas", "ATMOSPHERIC TRACE GASES", "Energetics", "energy reserve", "Dormancy", "SOR RONDANE MOUNTAINS", "Desert", "Photosynthesis", "106026 Ecosystem research", "CARBON-MONOXIDE", "desert", "ATACAMA DESERT", "energetics", "2. 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Recent technological advances have exponentially increased our knowledge concerning the global ecological distributions of microbial communities across space and time and have provided evidence for their contribution to ecosystem functions. However, major knowledge gaps in soil biogeography remain to be addressed over the coming years as technology and research questions continue to evolve.</p></article>", "keywords": ["0301 basic medicine", "2. Zero hunger", "future perspectives", "0303 health sciences", "soil microbial biogeography", "recent advances", "15. Life on land", "Microbiology", "QR1-502", "3. Good health", "03 medical and health sciences", "13. 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This phenomenon, originally described in plant defence against pathogens and predators, is encompassed in the \uffe2\uff80\uff98cry\uffe2\uff80\uff90for\uffe2\uff80\uff90help\uffe2\uff80\uff99 hypothesis. Evidence suggests that this mechanism may be part of the adaptation strategy to ensure the holobiont fitness in polluted environments. Polychlorinated biphenyls (PCBs) were considered as model pollutants due to their toxicity, recalcitrance and poor phyto\uffe2\uff80\uff90extraction potential, which lead to a plethora of phytotoxic effects and rise environmental safety concerns. Plants have inefficient detoxification processes to catabolize PCBs, even leading to by\uffe2\uff80\uff90products with a higher toxicity. We propose that the \uffe2\uff80\uff98cry\uffe2\uff80\uff90for\uffe2\uff80\uff90help\uffe2\uff80\uff99 mechanism could drive the exudation\uffe2\uff80\uff90mediated recruitment and sustainment of the microbial services for PCBs removal, exerted by an array of anaerobic and aerobic microbial degrading populations working in a complex metabolic network. Through this synergistic interaction, the holobiont copes with the soil contamination, releasing the plant from the pollutant stress by the ecological services provided by the boosted metabolism of PCBs microbial degraders. Improving knowledge of root chemistry under PCBs stress is, therefore, advocated to design rhizoremediation strategies based on plant microbiome engineering.</p", "keywords": ["2. Zero hunger", "0301 basic medicine", "0303 health sciences", "Microbiota", "Minireviews", "15. Life on land", "Polychlorinated Biphenyls", "6. Clean water", "Soil", "03 medical and health sciences", "Biodegradation", " Environmental", "13. 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