生物
寄主(生物学)
共生
背景(考古学)
基因组
拟南芥
莲藕
莲花
细菌
微生物群
拟南芥
共生
生态学
植物
基因
遗传学
古生物学
突变体
作者
Kathrin Wippel,Ke Tao,Yulong Niu,Rafal Zgadzaj,Niklas Kiel,Rui Guan,Eik Dahms,Pengfan Zhang,Dorthe Bødker Jensen,Elke Logemann,Simona Radutoiu,Paul Schulze‐Lefert,Ruben Garrido‐Oter
出处
期刊:Nature microbiology
日期:2021-07-26
卷期号:6 (9): 1150-1162
被引量:95
标识
DOI:10.1038/s41564-021-00941-9
摘要
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 effects during root microbiota assembly, where established communities are resilient to invasion by latecomers, and that host preference of commensal bacteria confers a competitive advantage in their cognate host. Our findings show that host preference in commensal bacteria from diverse taxonomic groups is associated with their invasiveness into standing root-associated communities.
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