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A conserved clathrin-coated vesicle component, OsSCYL2, regulates plant innate immunity in rice

文献类型： 外文期刊

作者： Yao, Yao 1 ; Zhou, Jihua 1 ; Cheng, Can 1 ; Niu, Fuan 1 ; Zhang, Anpeng 1 ; Sun, Bin 1 ; Tu, Rongjian 1 ; Wan, Jianing 3 ; Li, Yao 1 ; Huang, Yiwen 1 ; Xie, Kaizhen 1 ; Dai, Yuting 1 ; Zhang, Hui 5 ; Hong, Jing Han 6 ; Pan, Xiaohua 2 ; Zhu, Jiaojiao 7 ; Zhou, Hong 7 ; Liu, Zhenhua 7 ; Cao, Liming 1 ; Chu, Huangwei 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Inst Crop Breeding & Cultivat, Shanghai 201403, Peoples R China

2.Jiangxi Agr Univ, Coll Agron, Nanchang, Jiangxi, Peoples R China

3.Shanghai Acad Agr Sci, Inst Edible Fungi, Shanghai, Peoples R China

4.Shanghai Ocean Univ, Coll Fisheries & Life, Shanghai, Peoples R China

5.Shanghai Normal Univ, Coll Life Sci, Shanghai, Peoples R China

6.Duke NUS Med Sch, Canc & Stem Cell Biol Programme, Singapore, Singapore

7.Shanghai Jiao Tong Univ, Joint Ctr Single Cell Biol, Sch Agr & Biol, Shanghai, Peoples R China

关键词： cell death; clathrin-mediated vesicle trafficking; disease resistance; lesion mimic mutant; Oryza sativa

期刊名称：PLANT CELL AND ENVIRONMENT （ 影响因子：7.947； 五年影响因子：8.452 ）

ISSN： 0140-7791

年卷期： 2022 年 45 卷 2 期

页码：

收录情况： SCI

摘要： Clathrin-mediated vesicle trafficking (CMVT) is a fundamental process in all eukaryotic species, and indispensable to organism's growth and development. Recently, it has been suggested that CMVT also plays important roles in the regulation of plant immunity. However, the molecular link between CMVT and plant immunity is largely unknown. SCY1-LIKE2 (SCYL2) is evolutionally conserved among the eukaryote species. Loss-of-function of SCYL2 in Arabidopsis led to severe growth defects. Here, we show that mutation of OsSCYL2 in rice gave rise to a novel phenotype-hypersensitive response-like (HR) cell death in a light-dependent manner. Although mutants of OsSCYL2 showed additional defects in the photosynthetic system, they exhibited enhanced resistance to bacterial pathogens. Subcellular localisation showed that OsSCYL2 localized at Golgi, trans-Golgi network and prevacuolar compartment. OsSCYL2 interacted with OsSPL28, subunit of a clathrin-associated adaptor protein that is known to regulate HR-like cell death in rice. We further showed that OsSCYL2-OsSPL28 interaction is mediated by OsCHC1. Collectively, we characterized a novel component of the CMVT pathway in the regulation of plant immunity. Our work also revealed unidentified new functions of the very conserved SCYL2. It thus may provide new breeding targets to achieve both high yield and enhanced resistance in crops.

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