9721见好就收

  • VPN|
  • 内网办公|
  • 财务报销|
  • 预约系统|
  • 签章审批|
  • 邮箱|
  • 中国农业科学院|
  • 所长信箱|
  • English
MENU
首页» 新闻动态» 最新论文

9721见好就收:Rice stripe virus suppresses jasmonic acid-mediated resistance by hijacking brassinosteroid signaling pathway in rice

  作者:Jinlong Hu ,Jie Huang ,Haosen Xu,Yongsheng Wang,Chen Li,Peizheng Wen,Xiaoman You,Xiao Zhang,Gen Pan,Qi Li,Hongliang Zhang,Jun He,Hongming Wu,Ling Jiang,Haiyang Wang,Yuqiang Liu ,Jianmin Wan

  影响因子:6.218

  刊物名称:PLoS Pathogens

  出版年份: August 31, 2020

  doi:10.1371/journal.ppat.1008801

  Abstract

  Rice stripe virus (RSV) is one of the most destructive viral diseases affecting rice production. However, so far, only one RSV resistance gene has been cloned, the molecular mechanisms underlying host-RSV interaction are still poorly understood. Here, we show that increasing levels or signaling of brassinosteroids (BR) and jasmonic acid (JA) can significantly enhance the resistance against RSV. On the contrary, plants impaired in BR or JA signaling are more susceptible to RSV. Moreover, the enhancement of RSV resistance conferred by BR is impaired in OsMYC2 (a key positive regulator of JA response) knockout plants, suggesting that BR-mediated RSV resistance requires active JA pathway. In addition, we found that RSV infection suppresses the endogenous BR levels to increase the accumulation of OsGSK2, a key negative regulator of BR signaling. OsGSK2 physically interacts with OsMYC2, resulting in the degradation of OsMYC2 by phosphorylation and reduces JA-mediated defense to facilitate virus infection. These findings not only reveal a novel molecular mechanism mediating the crosstalk between BR and JA in response to virus infection and deepen our understanding about the interaction of virus and plants, but also suggest new effective means of breeding RSV resistant crops using genetic engineering.



TOP
9721见好就收-9721见好就收才是赢