OsEIL2 balances rice immune responses against (hemi)biotrophic and necrotrophic pathogens via the salicylic acid and jasmonic acid synergism

文献类型： 外文期刊

第一作者： Zhao, Yudan

作者： Zhao, Yudan;Zhu, Xiaoying;Xu, Guojuan;Shi, Yanlong;Kang, Houxiang;Liu, Wende;Wang, Ruyi;Ning, Yuese;Wang, Xuli;Shi, Cheng-Min;Zuo, Shimin;Cao, Wenlei;Wang, Guo-Liang

作者机构：

关键词： EIN3; jasmonic acid; Magnaporthe oryzae; Oryza sativa; Rhizoctonia solani; salicylic acid; transcription factor; Xanthomonas oryzae pv oryzae

期刊名称：NEW PHYTOLOGIST （ 影响因子：9.4； 五年影响因子：10.5 ）

ISSN： 0028-646X

年卷期： 2024 年

页码：

收录情况： SCI

摘要： center dot Plants typically activate distinct defense pathways against various pathogens. Heightened resistance to one pathogen often coincides with increased susceptibility to another pathogen. However, the underlying molecular basis of this antagonistic response remains unclear. center dot Here, we demonstrate that mutants defective in the transcription factor ETHYLENE-INSENSITIVE 3-LIKE 2 (OsEIL2) exhibited enhanced resistance to the biotrophic bacterial pathogen Xanthomonas oryzae pv oryzae and to the hemibiotrophic fungal pathogen Magnaporthe oryzae, but enhanced susceptibility to the necrotrophic fungal pathogen Rhizoctonia solani. center dot Furthermore, necrotroph-induced OsEIL2 binds to the promoter of OsWRKY67 with high affinity, leading to the upregulation of salicylic acid (SA)/jasmonic acid (JA) pathway genes and increased SA/JA levels, ultimately resulting in enhanced resistance. center dot However, biotroph- and hemibiotroph-induced OsEIL2 targets OsERF083, resulting in the inhibition of SA/JA pathway genes and decreased SA/JA levels, ultimately leading to reduced resistance. Our findings unveil a previously uncharacterized defense mechanism wherein two distinct transcriptional regulatory modules differentially mediate immunity against pathogens with different lifestyles through the transcriptional reprogramming of phytohormone pathway genes.

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