气候变化领域集成服务门户(CCPortal): A class of independently evolved transcriptional repressors in plant RNA viruses facilitates viral infection and vector feeding

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DOI	10.1073/pnas.2016673118
	A class of independently evolved transcriptional repressors in plant RNA viruses facilitates viral infection and vector feeding
	Li L.; Zhang H.; Chen C.; Huang H.; Tan X.; Wei Z.; Li J.; Yan F.; Zhang C.; Chen J.; Sun Z.
发表日期	2021
ISSN	00278424
卷号	118 期号:11
英文摘要	Plant viruses employ diverse virulence strategies to achieve successful infection, but there are few known general strategies of viral pathogenicity and transmission used by widely different plant viruses. Here, we report a class of independently evolved virulence factors in different plant RNA viruses which possess active transcriptional repressor activity. Rice viruses in the genera Fijivirus, Tenuivirus, and Cytorhabdovirus all have transcriptional repressors that interact in plants with the key components of jasmonic acid (JA) signaling, namely mediator subunit OsMED25, OsJAZ proteins, and OsMYC transcription factors. These transcriptional repressors can directly disassociate the OsMED25-OsMYC complex, inhibit the transcriptional activation of OsMYC, and then combine with OsJAZ proteins to cooperatively attenuate the JA pathway in a way that benefits viral infection. At the same time, these transcriptional repressors efficiently enhanced feeding by the virus insect vectors by repressing JA signaling. Our findings reveal a common strategy in unrelated plant viruses in which viral transcriptional repressors hijack and repress the JA pathway in favor of both viral pathogenicity and vector transmission. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Antiviral defense; Jasmonic acid; Plant viruses; Transcriptional repressor; Vector feeding
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180294
作者单位	State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety, Institute of Plant Virology, Ningbo University, Ningbo, 315211, China; College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
推荐引用方式 GB/T 7714	Li L.,Zhang H.,Chen C.,et al. A class of independently evolved transcriptional repressors in plant RNA viruses facilitates viral infection and vector feeding[J],2021,118(11).
APA	Li L..,Zhang H..,Chen C..,Huang H..,Tan X..,...&Sun Z..(2021).A class of independently evolved transcriptional repressors in plant RNA viruses facilitates viral infection and vector feeding.Proceedings of the National Academy of Sciences of the United States of America,118(11).
MLA	Li L.,et al."A class of independently evolved transcriptional repressors in plant RNA viruses facilitates viral infection and vector feeding".Proceedings of the National Academy of Sciences of the United States of America 118.11(2021).