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Potato calcineurin B-like protein CBL4, interacting with calcineurin B-like protein-interacting protein kinase CIPK2, positively regulates plant resistance to stem canker caused by Rhizoctonia solani

文献类型： 外文期刊

作者： Yang, Shuai 1 ; Li, Jie 2 ; Lu, Jie 3 ; Wang, Ling 4 ; Min, Fanxiang 1 ; Guo, Mei 1 ; Wei, Qi 1 ; Wang, Wenzhong 1 ; Dong, Xuezhi 1 ; Mao, Yanzhi 1 ; Hu, Linshuang 1 ; Wang, Xiaodan 2 ;

作者机构： 1.Heilongjiang Acad Agr Sci, Inst Ind Crop, Harbin, Peoples R China

2.China Agr Univ, Coll Plant Protect, Dept Plant Pathol, Beijing, Peoples R China

3.Heilongjiang Acad Agr Sci, Biotechnol Res Inst, Harbin, Peoples R China

4.Heilongjiang Acad Agr Sci, Inst Crop Cultivat & Tillage, Harbin, Peoples R China

关键词： Calcineurin B-like protein; CBL-interacting protein kinases; disease resistance; expression profile; regulation; Rhizoctonia solani

期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：5.2； 五年影响因子：6.2 ）

ISSN：

年卷期： 2023 年 13 卷

页码：

收录情况： SCI

摘要： IntroductionCalcium sensor calcineurin B-like proteins (CBLs) and their interacting partners, CBL-interacting protein kinases (CIPKs), have emerged as a complex network in response to abiotic and biotic stress perception. However, little is known about how CBL-CIPK complexes function in potatoes. MethodsIn this study, we identified the components of one potato signaling complex, StCBL4-StCIPK2, and characterized its function in defense against Rhizoctonia solani causing stem canker in potato. ResultsExpressions of both StCBL4 and StCIPK2 from potato were coordinately induced upon R. solani infection and following exposure to the defense genes. Furthermore, transient overexpression of StCBL4 and StCIPK2 individually and synergistically increased the tolerance of potato plants to R. solani in Nicotiana benthamiana. Additionally, the transgenic potato has also been shown to enhance resistance significantly. In contrast, susceptibility to R. solani was exhibited in N. benthamiana following virus-induced gene silencing of NbCBL and NbCIPK2. Evidence revealed that StCBL4 could interact in yeast and in planta with StCIPK2. StCBL4 and StCIPK2 transcription was induced upon R. solani infection and this expression in response to the pathogen was enhanced in StCBL4- and StCIPK2-transgenic potato. Moreover, accumulated expression of pathogenesis-related (PR) genes and reactive oxygen species (ROS) was significantly upregulated and enhanced in both StCBL4- and StCIPK2- transgenic potato. DiscussionAccordingly, StCBL4 and StCIPK2 were involved in regulating the immune response to defend the potato plant against R. solani. Together, our data demonstrate that StCBL4 functions in concert with StCIPK2, as positive regulators of immunity, contributing to combating stem canker disease in potato.

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