GSK3s promote the phyB-ELF3-HMR complex formation to regulate plant thermomorphogenesis

文献类型： 外文期刊

第一作者： Yang, Ruizhen

作者： Yang, Ruizhen;Dong, Huixue;Zhang, Yunwei;Sun, Jiaqiang;Xie, Xianzhi

作者机构：

关键词： ELF3; GSK3; high-ambient temperature; HMR; phyB

期刊名称：NEW PHYTOLOGIST （ 影响因子：8.3； 五年影响因子：10.2 ）

ISSN： 0028-646X

年卷期： 2024 年

页码：

收录情况： SCI

摘要： center dot Although elevated ambient temperature causes many effects on plant growth and development, the mechanisms of plant high-ambient temperature sensing remain unknown. center dot In this study, we show that GLYCOGEN SYNTHASE KINASE 3s (GSK3s) negatively regulate high-ambient temperature response and oligomerize upon high-temperature treatment. We demonstrate that GSK3 kinase BIN2 specifically interacts with the high-temperature sensor phytochrome B (phyB) but not the high-temperature sensor EARLY FLOWER 3 (ELF3) to phosphorylate and promote phyB photobody formation. center dot Furthermore, we show that phosphorylation of phyB by GSK3s promotes its interaction with ELF3. Subsequently, we find that ELF3 recruits the phyB photobody facilitator HEMERA (HMR) to promote its association with phyB. center dot Taken together, our data reveal a mechanism that GSK3s promote the phyB-ELF3-HMR complex formation in regulating plant thermomorphogenesis.

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