Journal
ISME JOURNAL
Volume 16, Issue 3, Pages 876-889Publisher
SPRINGERNATURE
DOI: 10.1038/s41396-021-01138-y
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Funding
- Max-Planck-Gesellschaft through the International Max Planck Research School (IMPRS)
- University of Cologne
- Cluster of Excellence on Plant Sciences (CEPLAS) - Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy-EXC [390686111, ZU 263/11-1, PA 917/8-1]
- Max Planck Society
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Plant root-associated bacteria can protect against pathogen infections, while root endophytic fungi combined with core bacterial members provide synergistic protection. The early growth promotion benefits of these interactions are dependent on the host and microbiota composition, and are associated with modulation of microbial effectors and carbohydrate-active enzymes instead of extensive host transcriptional reprogramming.
Plant root-associated bacteria can confer protection against pathogen infection. By contrast, the beneficial effects of root endophytic fungi and their synergistic interactions with bacteria remain poorly defined. We demonstrate that the combined action of a fungal root endophyte from a widespread taxon with core bacterial microbiota members provides synergistic protection against an aggressive soil-borne pathogen in Arabidopsis thaliana and barley. We additionally reveal early inter-kingdom growth promotion benefits which are host and microbiota composition dependent. Using RNA-sequencing, we show that these beneficial activities are not associated with extensive host transcriptional reprogramming but rather with the modulation of expression of microbial effectors and carbohydrate-active enzymes.
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