Plant immunity suppression via PHR1-RALF-FERONIA shapes the root microbiome to alleviate phosphate starvation
文献类型： 外文期刊
作者： Tang, Jing 1 ; Wu, Dousheng 1 ; Li, Xiaoxu 2 ; Wang, Lifeng 3 ; Xu, Ling 4 ; Zhang, Yi 1 ; Xu, Fan 1 ; Liu, Hongbin 1 ; Xie, Qijun 1 ; Dai, Shaojun 5 ; Coleman-Derr, Devin 4 ; Zhu, Sirui 1 ; Yu, Feng 1 ;
作者机构： 1.Hunan Univ, Coll Biol, State Key Lab Chemo Biosensing & Chemometr, Changsha, Peoples R China
2.China Tobacco Hunan Ind Co Ltd, Technol Ctr, Changsha, Peoples R China
3.Hunan Acad Agr Sci, Hunan Agr Biotechnol Res Inst, State Key Lab Hybrid Rice, Changsha, Peoples R China
4.Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA
5.Shanghai Normal Univ, Coll Life Sci, Dev Ctr Plant Germplasm Resources, Shanghai, Peoples R China
关键词： FER; phosphate starvation response; PHR1; plant immunity; RALF
期刊名称：EMBO JOURNAL （ 影响因子：14.012； 五年影响因子：14.159 ）
ISSN： 0261-4189
年卷期： 2022 年 41 卷 6 期
页码：
收录情况： SCI
摘要： The microbiome plays an important role in shaping plant growth and immunity, but few plant genes and pathways impacting plant microbiome composition have been reported. In Arabidopsis thaliana, the phosphate starvation response (PSR) was recently found to modulate the root microbiome upon phosphate (Pi) starvation through the transcriptional regulator PHR1. Here, we report that A. thaliana PHR1 directly binds to the promoters of rapid alkalinization factor (RALF) genes, and activates their expression under phosphate-starvation conditions. RALFs in turn suppress complex formation of pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) receptor through FERONIA, a previously-identified PTI modulator that increases resistance to certain detrimental microorganisms. Suppression of immunity via the PHR1-RALF-FERONIA axis allows colonization by specialized root microbiota that help to alleviate phosphate starvation by upregulating the expression of PSR genes. These findings provide a new paradigm for coordination of host-microbe homeostasis through modulating plant innate immunity after environmental perturbations.
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