4.6 Article

PSKR1 balances the plant growth-defence trade-off in the rhizosphere microbiome

期刊

NATURE PLANTS
卷 -, 期 -, 页码 -

出版社

NATURE PORTFOLIO
DOI: 10.1038/s41477-023-01539-1

关键词

-

向作者/读者索取更多资源

Plants use PHYTOSULFOKINE RECEPTOR 1-mediated regulation of salicylic acid signaling to tune the plant growth-defense balance in response to microbiota in order to avoid autoimmunity.
Microbiota benefit their hosts by improving nutrient uptake and pathogen protection. How host immunity restricts microbiota while avoiding autoimmunity is poorly understood. Here we show that the Arabidopsisphytosulfokine receptor 1 (pskr1) mutant displays autoimmunity (plant stunting, defence-gene expression and reduced rhizosphere bacterial growth) in response to growth-promoting Pseudomonas fluorescens. Microbiome profiling and microbiota colonization showed that PSKR1-mediated reduction in bacterial growth and stunting is largely specific to Pseudomonas. Transcriptional profiling demonstrated that PSKR1 regulates the growth-defence trade-off during Pseudomonas colonization: PSKR1 upregulates plant photosynthesis and root growth but suppresses salicylic-acid-mediated defences. Genetic epistasis experiments showed that pskr1 stunting and restriction of bacterial growth are salicylic acid dependent. Finally, we showed that Pseudomonas, but not other bacteria, induces PSKR1 expression in roots, suggesting that Pseudomonas might manipulate plant signalling to promote its colonization. Our data demonstrate a genetic mechanism to coordinate beneficial functions of the microbiome while preventing autoimmunity. To avoid autoimmunity against the microbiome, plants use PHYTOSULFOKINE RECEPTOR 1-mediated regulation of salicylic acid signalling to tune the plant growth-defence balance in response to microbiota.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据