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

IF 8.1 1区生物学 Q1 PLANT SCIENCES New Phytologist Pub Date : 2024-08-27 DOI:10.1111/nph.20064

Ruizhen Yang, Huixue Dong, Xianzhi Xie, Yunwei Zhang, Jiaqiang Sun

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Abstract

Although elevated ambient temperature causes many effects on plant growth and development, the mechanisms of plant high-ambient temperature sensing remain unknown.
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.
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.
Taken together, our data reveal a mechanism that GSK3s promote the phyB-ELF3-HMR complex formation in regulating plant thermomorphogenesis.

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GSK3促进phyB-ELF3-HMR复合物的形成，以调控植物的热形态发生。

虽然环境温度升高会对植物的生长和发育产生许多影响，但植物对高环境温度的感知机制仍然未知。在这项研究中，我们发现糖精合成酶激酶 3（GSK3s）负调控高环境温度响应，并在高温处理时寡聚。我们证明 GSK3 激酶 BIN2 与高温传感器植物色素 B（phyB）而非高温传感器早期花卉 3（ELF3）特异性相互作用，磷酸化并促进 phyB 光抗体的形成。此外，我们还发现 GSK3s 磷酸化 phyB 会促进其与 ELF3 的相互作用。随后，我们发现 ELF3 招募了 phyB 光抗体促进因子 HEMERA (HMR)，以促进其与 phyB 的结合。综上所述，我们的数据揭示了 GSK3s 促进 phyB-ELF3-HMR 复合物形成以调控植物热形态发生的机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

New Phytologist 生物-植物科学

自引率

5.30%

发文量

728

期刊介绍： New Phytologist is an international electronic journal published 24 times a year. It is owned by the New Phytologist Foundation, a non-profit-making charitable organization dedicated to promoting plant science. The journal publishes excellent, novel, rigorous, and timely research and scholarship in plant science and its applications. The articles cover topics in five sections: Physiology & Development, Environment, Interaction, Evolution, and Transformative Plant Biotechnology. These sections encompass intracellular processes, global environmental change, and encourage cross-disciplinary approaches. The journal recognizes the use of techniques from molecular and cell biology, functional genomics, modeling, and system-based approaches in plant science. Abstracting and Indexing Information for New Phytologist includes Academic Search, AgBiotech News & Information, Agroforestry Abstracts, Biochemistry & Biophysics Citation Index, Botanical Pesticides, CAB Abstracts®, Environment Index, Global Health, and Plant Breeding Abstracts, and others.