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

Autor:	Fei Yan, Xuemei Song, Yonggen Lou, Junmin Li, Lin Lin, Mengfei Ji, Kelei Han, Quan Yuan, Yuwen Lu, Jianping Chen, Jiejun Peng, Hongying Zheng, Guanwei Wu, Shaofei Rao, Weijun Cui, Chuan-Xi Zhang, Hehong Zhang, Haijian Huang, Zongtao Sun
Rok vydání:	2020
Předmět:	0106 biological sciences 0301 basic medicine Short Communication viruses Mutant Short Communications Soil Science Cyclopentanes Plant Science small brown planthopper (SBPH) 01 natural sciences Virus Microbiology Hemiptera 03 medical and health sciences chemistry.chemical_compound Plant Growth Regulators rice stripe virus Laodelphax striatellus Animals Plant Immunity Oxylipins Molecular Biology Tenuivirus Plant Diseases Methyl jasmonate biology Jasmonic acid jasmonic acid food and beverages Oryza Rice stripe virus biology.organism_classification Genetically modified rice 030104 developmental biology chemistry coat protein Host-Pathogen Interactions Mutation Capsid Proteins Brown planthopper Agronomy and Crop Science 010606 plant biology & botany
Zdroj:	Molecular Plant Pathology
ISSN:	1364-3703 1464-6722
DOI:	10.1111/mpp.12995
Popis:	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.
Databáze:	OpenAIRE
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