Distinct modes of manipulation of rice auxin response factor OsARF17 by different plant RNA viruses for infection
文献类型： 外文期刊
作者： Zhang, Hehong 1 ; Li, Lulu 1 ; He, Yuqing 2 ; Qin, Qingqing 3 ; Chen, Changhai 1 ; Wei, Zhongyan 1 ; Tan, Xiaoxiang 1 ; X 1 ;
作者机构： 1.Ningbo Univ, State Key Lab Qual & Safety Agroprod, Key Lab Biotechnol Plant Protect, Minist Agr China & Zhejiang Prov,Inst Plant Virol, Ningbo 315211, Zhejiang, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Virol & Biotechnol, Hangzhou 310021, Zhejiang, Peoples R China
3.Peking Univ, Coll Life Sci, Beijing 100871, Peoples R China
关键词： auxin signaling; auxin response factor; OsARF17; rice virus; viral proteins
期刊名称：PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA （ 影响因子：11.205； 五年影响因子：12.291 ）
ISSN： 0027-8424
年卷期： 2020 年 117 卷 16 期
页码：
收录情况： SCI
摘要： Plant auxin response factor (ARF) transcription factors are an important class of key transcriptional modulators in auxin signaling. Despite the well-studied roles of ARF transcription factors in plant growth and development, it is largely unknown whether, and how, ARF transcription factors may be involved in plant resistance to pathogens. We show here that two fijiviruses (double-stranded RNA viruses) utilize their proteins to disturb the dimerization of OsARF17 and repress its transcriptional activation ability, while a tenuivirus (negative-sense single-stranded RNA virus) directly interferes with the DNA binding activity of OsARF17. These interactions impair OsARF17-mediated antiviral defense. OsARF17 also confers resistance to a cytorhabdovirus and was directly targeted by one of the viral proteins. Thus, OsARF17 is the common target of several very different viruses. This suggests that OsARF17 plays a crucial role in plant defense against different types of plant viruses, and that these viruses use independently evolved viral proteins to target this key component of auxin signaling and facilitate infection.
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