Pathogenesis-related protein 1 suppresses oomycete pathogen by targeting against AMPK kinase complex
文献类型: 外文期刊
第一作者: Luo, Xiumei
作者: Luo, Xiumei;Feng, Li;Li, Linxuan;Wu, Wenxian;Ren, Maozhi;Luo, Xiumei;Feng, Li;Li, Linxuan;Wu, Wenxian;Ren, Maozhi;Luo, Xiumei;Feng, Li;Li, Linxuan;Wu, Wenxian;Ren, Maozhi;Luo, Xiumei;Feng, Li;Li, Linxuan;Wu, Wenxian;Ren, Maozhi;Luo, Xiumei;Tian, Tingting;Tan, Xue;Li, Zhengguo;Yang, Xingyong;Treves, Haim;Serneels, Francois;Ng, I-Son;Tanaka, Kan
作者机构:
关键词: Pathogenesis-related protein 1; AMPK kinase complex; Phytophthora infestans; Potato late blight; Host-pathogen interaction; Cross-kingdom translocation
期刊名称:JOURNAL OF ADVANCED RESEARCH ( 影响因子:10.7; 五年影响因子:11.4 )
ISSN: 2090-1232
年卷期: 2023 年 43 卷
页码:
收录情况: SCI
摘要: Introduction: During the arms race between plants and pathogens, pathogenesis-related proteins (PR) in host plants play a crucial role in disease resistance, especially PR1. PR1 constitute a secretory peptide family, and their role in plant defense has been widely demonstrated in both hosts and in vitro. However, the mechanisms by which they control host-pathogen interactions and the nature of their tar-gets within the pathogen remain poorly understood.Objectives: The present study was aimed to investigate the anti-oomycete activity of secretory PR1 pro-teins and elaborate their underlying mechanisms. Methods: This study was conducted in the potato-Phytophthora infestans pathosystem. After being induced by the pathogen infection, the cross-kingdom translocation of secretory PR1 was demonstrated by histochemical assays and western blot, and their targets in P. infestans were identified by yeast-two -hybrid assays, bimolecular fluorescence complementation assays, and co-immunoprecipitation assay. Results: The results showed that the expression of secretory PR1-encoding genes was induced during pathogen infection, and the host could deliver PR1 into P. infestans to inhibit its vegetative growth and pathogenicity. The translocated secretory PR1 targeted the subunits of the AMPK kinase complex in P. infestans, thus affecting the AMPK-driven phosphorylation of downstream target proteins, preventing ROS homeostasis, and down-regulating the expression of RxLR effectors.Conclusion: The results provide novel insights into the molecular function of PR1 in protecting plants against pathogen infection, and uncover a potential target for preventing pre-and post-harvest late blight.(c) 2022 The Authors. Published by Elsevier B.V. on behalf of Cairo University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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