Phosphatidylcholine Transfer Protein OsPCTP Interacts with Ascorbate Peroxidase OsAPX8 to Regulate Bacterial Blight Resistance in Rice
文献类型： 外文期刊
作者： Gong, Rong 1 ; Cao, Huasheng 1 ; Pan, Yangyang 1 ; Liu, Wei 1 ; Wang, Zhidong 1 ; Chen, Yibo 1 ; Li, Hong 1 ; Zhao, Lei 1 ; Huang, Daoqiang 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Rice Res Inst, Guangzhou 510640, Peoples R China
2.Key Lab Genet & Breeding High Qual Rice Southern C, Minist Agr & Rural Affairs, Guangzhou 510640, Peoples R China
3.Guangdong Key Lab New Technol Rice Breeding, Guangzhou 510640, Peoples R China
4.Guangdong Rice Engn Lab, Guangzhou 510640, Peoples R China
关键词： START domain; OsPCTP; bacterial blight resistance; reactive oxygen species (ROS)
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）
ISSN： 1661-6596
年卷期： 2024 年 25 卷 21 期
页码：
收录情况： SCI
摘要： Rice phosphatidylcholine transfer protein (PCTP), which contains a steroidogenic acute regulatory protein-related lipid transfer (START) domain, responds to bacterial blight disease. Overexpression of OsPCTP quantitatively enhances resistance to pathogen in rice, whereas depletion of it has the opposite effect. Further analysis showed that OsPCTP physically interacts with OsAPX8, a ROS scavenging enzyme, and influences ascorbate peroxidase enzymatic activity in vivo. In addition, the expression of pathogenesis-related genes PR1a, PR1b and PR10 were significantly induced in OsPCTP-OE plants compared with that in wild-type plants ZH11. Taken together, these results suggested that OsPCTP mediates bacterial blight resistance in rice through regulating the ROS defense pathway.
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