Salicylic acid binds NPR3 and NPR4 to regulate NPRl-dependent defense responses

Salicylic acid （SA） is widely recognized as a key player in plant immunity. While several proteins have been previously identified as the direct targets of SA, SA- mediated plant defense signaling mechanisms remain unclear. The Nature paper from Xinnian Dong＇s group demonstrates that the NPR1 paralo...

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Bibliographic Details
Published in细胞研究：英文版 Vol. 22; no. 12; pp. 1631 - 1633
Main Author Magali Moreau Miaoying Tian Daniel F Klessig
Format Journal Article
LanguageEnglish
Published 2012
Subjects
信号传导机制
信号转导
植物免疫
植物防御
水杨酸
相互作用
防御反应
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Summary:Salicylic acid （SA） is widely recognized as a key player in plant immunity. While several proteins have been previously identified as the direct targets of SA, SA- mediated plant defense signaling mechanisms remain unclear. The Nature paper from Xinnian Dong＇s group demonstrates that the NPR1 paralogues NPR3 and NPR4 directly bind SA, and this binding modulates their interaction with NPR1 and thereby degradation of this key positive regulator of SA-mediated defense, shedding important new insight into the mechanism（s） of SA- mediated, NPRl-dependent plant defense signal transduction.
Bibliography:31-1568/Q
Salicylic acid （SA） is widely recognized as a key player in plant immunity. While several proteins have been previously identified as the direct targets of SA, SA- mediated plant defense signaling mechanisms remain unclear. The Nature paper from Xinnian Dong＇s group demonstrates that the NPR1 paralogues NPR3 and NPR4 directly bind SA, and this binding modulates their interaction with NPR1 and thereby degradation of this key positive regulator of SA-mediated defense, shedding important new insight into the mechanism（s） of SA- mediated, NPRl-dependent plant defense signal transduction.
ISSN:1001-0602
1748-7838