文章基本信息

标题：Phosphorylation-guarded light-harvesting complex II contributes to broad-spectrum blast resistance in rice
本地全文：下载
作者：Muxing Liu ; Muxing Liu ; Suobing Zhang 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2019
卷号：116
期号：35
页码：17572-17577
DOI：10.1073/pnas.1905123116
出版社：The National Academy of Sciences of the United States of America
摘要：Environmental conditions are key factors in the progression of plant disease epidemics. Light affects the outbreak of plant diseases, but the underlying molecular mechanisms are not well understood. Here, we report that the light-harvesting complex II protein, LHCB5, from rice is subject to light-induced phosphorylation during infection by the rice blast fungus Magnaporthe oryzae . We demonstrate that single-nucleotide polymorphisms (SNPs) in the LHCB5 promoter control the expression of LHCB5 , which in turn correlates with the phosphorylation of LHCB5. LHCB5 phosphorylation enhances broad-spectrum resistance of rice to M. oryzae through the accumulation of reactive oxidative species (ROS) in the chloroplast. We also show that LHCB5 phosphorylation-induced resistance is inheritable. Our results uncover an immunity mechanism mediated by phosphorylation of light-harvesting complex II..
关键词：light;harvesting complex II ; phosphorylation ; Magnaporthe oryzae ; broad;spectrum resistance