Taxonomic and functional analysis of the microbiota associated with cold-adapted plants
Plant-associated microorganisms can contribute to plant survival under stress conditions, but scarce information is available on the taxonomic structure and functional roles of bacteria associated with cold-adapted plants. The aim of this study was to identify bacterial communities associated with A...
| Main Authors: | , , , , |
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| Format: | Conference Object |
| Language: | unknown |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://zenodo.org/record/8377872 https://doi.org/10.5281/zenodo.8377872 |
| Summary: | Plant-associated microorganisms can contribute to plant survival under stress conditions, but scarce information is available on the taxonomic structure and functional roles of bacteria associated with cold-adapted plants. The aim of this study was to identify bacterial communities associated with Antarctic pearlwort and alpine plants, in order to assess the contribution of psychrotolerant bacteria to plant growth at low temperatures. Bacterial communities associated with Antarctic pearlwort differed according to the collection site and growth conditions. In particular, global warming simulated by open-top chambers (OTCs) severely affected the taxonomic structure of bacterial communities, indicating possible impacts of climate changes on the microbiota of Antarctic plants. Moreover, alpine plants hosted complex communities of bacterial endophytes that differed according to the plant species and tissue type. Psychrotolerant bacterial endophytes were able to colonize tomato seedlings and promote plant growth at low temperatures, indicating potential biotechnological applications in plant bio-fertilization and cold protection. |
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