生物
多细胞生物
丁香假单胞菌
拟南芥
基因
次生代谢
适应(眼睛)
遗传学
重编程
门
拟南芥
植物免疫
计算生物学
突变体
生物合成
神经科学
作者
Benjamin A. Maier,Patrick Kiefer,Christopher M. Field,Lucas Hemmerle,Miriam Bortfeld‐Miller,Barbara Emmenegger,Martin Schäfer,Sebastian Pfeilmeier,Shinichi Sunagawa,Christine Vogel,Julia A. Vorholt
出处
期刊:Nature plants
[Springer Nature]
日期:2021-05-17
卷期号:7 (5): 696-705
被引量:47
标识
DOI:10.1038/s41477-021-00913-1
摘要
Plants, like other multicellular lifeforms, are colonized by microorganisms. How plants respond to their microbiota is currently not well understood. We used a phylogenetically diverse set of 39 endogenous bacterial strains from Arabidopsis thaliana leaves to assess host transcriptional and metabolic adaptations to bacterial encounters. We identified a molecular response, which we termed the general non-self response (GNSR) that involves the expression of a core set of 24 genes. The GNSR genes are not only consistently induced by the presence of most strains, they also comprise the most differentially regulated genes across treatments and are predictive of a hierarchical transcriptional reprogramming beyond the GNSR. Using a complementary untargeted metabolomics approach we link the GNSR to the tryptophan-derived secondary metabolism, highlighting the importance of small molecules in plant-microbe interactions. We demonstrate that several of the GNSR genes are required for resistance against the bacterial pathogen Pseudomonas syringae. Our results suggest that the GNSR constitutes a defence adaptation strategy that is consistently elicited by diverse strains from various phyla, contributes to host protection and involves secondary metabolism.
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