Receptor kinase complex transmits RALF peptide signal to inhibit root growth in <i>Arabidopsis</i>
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- Changqing Du
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
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- Xiushan Li
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
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- Jia Chen
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
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- Weijun Chen
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
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- Bin Li
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
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- Chiyu Li
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
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- Long Wang
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
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- Jianglin Li
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
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- Xiaoying Zhao
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
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- Jianzhong Lin
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
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- Xuanming Liu
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
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- Sheng Luan
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720
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- Feng Yu
- Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, P.R. China;
抄録
<jats:title>Significance</jats:title> <jats:p> Receptor-like kinase FERONIA (FER) is a versatile regulator of cell growth under both normal and stress environments. FER binds its peptide ligand, rapid alkalinization factor 1 (RALF1), and triggers downstream events to inhibit cell growth in primary roots. However, the mechanism of RALF1 reception by FER is still largely unknown. In this study, we identified a receptor-like cytoplasmic kinase (RPM1-induced protein kinase, RIPK) that directly interacts with and is phosphorylated by FER in a RALF1 peptide-dependent manner. The defects of <jats:italic>fer-4</jats:italic> mutant in RALF1 response and root hair development are mimicked by <jats:italic>ripk</jats:italic> loss-of-function but partially compensated by RIPK overexpression. These and other data suggest that formation of the FER–RIPK complex serves as a crucial step in the RALF1 signaling pathway. </jats:p>
収録刊行物
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- Proceedings of the National Academy of Sciences
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Proceedings of the National Academy of Sciences 113 (51), E8326-, 2016-12-05
Proceedings of the National Academy of Sciences