Rice stripe virus coat protein induces the accumulation of jasmonic acid, activating plant defence against the virus while also attracting its vector to feed

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 i...

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Bibliographic Details
Published in:Molecular plant pathology 2020-12, Vol.21 (12), p.1647-1653
Main Authors: 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
Format: Article
Language:English
Subjects:
Biotechnology
Coat protein
Deficient mutant
Epidemics
Ethanol
Flowers & plants
Food
Genes
Genetic engineering
Genetically engineered foods
Health aspects
Herbivores
Infection
Infections
Jasmonic acid
Laodelphax striatellus
Methyl jasmonate
Plant resistance
Plants
Proteins
Rice
rice stripe virus
Short Communication
Short Communications
small brown planthopper (SBPH)
Viruses
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Summary: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. Rice stripe virus coat protein is an inducer of the jasmonic acid pathway that activates plant defence against the virus while also attracting its vector to feed and benefitting viral transmission.
ISSN:1464-6722
1364-3703
DOI:10.1111/mpp.12995