Host preference and invasiveness of commensal bacteria in the Lotus and Arabidopsis root microbiota.

ABSTRACT: Roots of different plant species are colonized by bacterial communities, that are distinct even when hosts share the same habitat. It remains unclear to what extent the host actively selects these communities and whether commensals are adapted to a specific plant species. To address this question, we assembled a sequence-indexed bacterial culture collection from roots and nodules of Lotus japonicus that contains representatives of most species previously identified using metagenomics. We analysed taxonomically paired synthetic communities from L. japonicus and Arabidopsis thaliana in a multi-species gnotobiotic system and detected signatures of host preference among commensal bacteria in a community context, but not in mono-associations. Sequential inoculation experiments revealed priority

SUBMITTER: Wippel K 

PROVIDER: S-EPMC8387241 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature