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Dissecting the co-transcriptome landscape of plants and microbiota

ABSTRACT: Interactions between plants and each neighboring microbial species are fundamental building blocks that collectively determine the structure and function of the plant microbiota, but the molecular basis of such interactions is poorly characterized. Here, we monocolonized Arabidopsis leaves with nine plant-associated bacteria from all major phyla of the plant microbiota and profiled co-transcriptomes of plants and bacteria. These strains elicited quantitatively different plant transcriptional responses including typical pattern-triggered immunity responses. Genes of non-pathogenic bacteria involved in general metabolism and energy production were commonly suppressed in planta in contrast to a virulent pathogen. Various nutrient acquisition pathways that are frequently encoded in the genomes of plant-associated bacteria were induced in planta in a strain-specific manner, shedding light on bacterial adaptation to the plant environment and identifying a potential driving force of niche separation. Integrative analyses of plant and bacterial transcriptomes suggested that the transcriptional reprogramming of plants is largely uncoupled from that of bacteria at an early stage of interactions. This study provides insights into how plants discriminate among bacterial strains and sets the foundation for in-depth mechanistic dissection of plant-microbiota interactions.

ORGANISM(S): Arthrobacter sp. Soil763 Flavobacterium sp. Root935 Acinetobacter sp. Leaf130 Arabidopsis thaliana Rhizobium sp. Leaf155 Exiguobacterium sp. Leaf187 Chryseobacterium sp. Leaf404 Plantibacter sp. Leaf1 Burkholderia sp. Leaf177 Pedobacter sp. Leaf176

PROVIDER: GSE150422 | GEO | 2021/04/26

REPOSITORIES: GEO

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