A Genetic Screen Identifies a Requirement for Cysteine-Rich-Receptor-Like Kinases in Rice NH1 (OsNPR1)-Mediated Immunity

文献类型： 外文期刊

第一作者： Chern, Mawsheng

作者： Chern, Mawsheng;Xu, Qiufang;Bart, Rebecca S.;Bai, Wei;Ruan, Deling;Sze-To, Wing Hoi;Canlas, Patrick E.;Jain, Rashmi;Chen, Xuewei;Ronald, Pamela C.;Chern, Mawsheng;Xu, Qiufang;Bart, Rebecca S.;Bai, Wei;Ruan, Deling;Sze-To, Wing Hoi;Canlas, Patrick E.;Jain, Rashmi;Chen, Xuewei;Ronald, Pamela C.;Chern, Mawsheng;Xu, Qiufang;Bart, Rebecca S.;Ruan, Deling;Sze-To, Wing Hoi;Canlas, Patrick E.;Jain, Rashmi;Chen, Xuewei;Ronald, Pamela C.;Xu, Qiufang;Bai, Wei;Chen, Xuewei;Bart, Rebecca S.

作者机构：

期刊名称：PLOS GENETICS （ 影响因子：5.917； 五年影响因子：6.284 ）

ISSN： 1553-7404

年卷期： 2016 年 12 卷 5 期

页码：

收录情况： SCI

摘要： Systemic acquired resistance, mediated by the Arabidopsis NPR1 gene and the rice NH1 gene, confers broad-spectrum immunity to diverse pathogens. NPR1 and NH1 interact with TGA transcription factors to activate downstream defense genes. Despite the importance of this defense response, the signaling components downstream of NPR1/NH1 and TGA proteins are poorly defined. Here we report the identification of a rice mutant, snim1, which suppresses NH1-mediated immunity and demonstrate that two genes encoding previously uncharacterized cysteine-rich-receptor-like kinases (CRK6 and CRK10), complement the snim1 mutant phenotype. Silencing of CRK6 and CRK10 genes individually in the parental genetic background recreates the snim1 phenotype. We identified a rice mutant in the Kitaake genetic background with a frameshift mutation in crk10; this mutant also displays a compromised immune response highlighting the important role of crk10. We also show that elevated levels of NH1 expression lead to enhanced CRK10 expression and that the rice TGA2.1 protein binds to the CRK10 promoter. These experiments demonstrate a requirement for CRKs in NH1-mediated immunity and establish a molecular link between NH1 and induction of CRK10 expression.

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