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

第一作者： Zhang, Hehong

作者： Zhang, Hehong;Li, Lulu;Chen, Changhai;Wei, Zhongyan;Tan, Xiaoxiang;Xie, Kaili;Zhang, Ruifang;Li, Junmin;Yan, Fei;Chen, Jianping;Sun, Zongtao;He, Yuqing;Hong, Gaojie;Li, Jing;Yan, Chengqi;Qin, Qingqing;Li, Yi

作者机构：

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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