Open AccessRice stripe virus coat protein induces the accumulation of jasmonic acid, activating plant defence against the virus while also attracting its vector to feed
Author(s) -
Han Kelei,
Huang Haijian,
Zheng Hongying,
Ji Mengfei,
Yuan Quan,
Cui Weijun,
Zhang Hehong,
Peng Jiejun,
Lu Yuwen,
Rao Shaofei,
Wu Guanwei,
Lin Lin,
Song Xuemei,
Sun Zongtao,
Li Junmin,
Zhang Chuanxi,
Lou Yonggen,
Chen Jianping,
Yan Fei
Publication year - 2020
Publication title -
molecular plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.945
H-Index - 103
eISSN - 1364-3703
pISSN - 1464-6722
DOI - 10.1111/mpp.12995
Subject(s) - jasmonic acid , biology , brown planthopper , jasmonate , virology , mutant , plant virus , host (biology) , genetically modified rice , virus , plant defense against herbivory , methyl jasmonate , coat protein , genetically modified crops , transgene , salicylic acid , gene , genetics , arabidopsis , rna
The jasmonic acid (JA) pathway plays crucial roles in plant defence against pathogens and herbivores. Rice stripe virus (RSV) is the type member of the genus Tenuivirus . It is transmitted by the small brown planthopper (SBPH) and causes damaging epidemics in East Asia. The role(s) that JA may play in the tripartite interaction against RSV, its host, and vector are poorly understood. Here, we found that the JA pathway was induced by RSV infection and played a defence role against RSV. The coat protein (CP) was the major viral component responsible for inducing the JA pathway. Methyl jasmonate treatment attracted SBPHs to feed on rice plants while a JA‐deficient mutant was less attractive than wild‐type rice. SBPHs showed an obvious preference for feeding on transgenic rice lines expressing RSV CP. Our results demonstrate that CP is an inducer of the JA pathway that activates plant defence against RSV while also attracting SBPHs to feed and benefitting viral transmission. This is the first report of the function of JA in the tripartite interaction between RSV, its host, and its vector.