拟南芥RGLG1/2通过影响TOE1/2蛋白稳定性调节不同土壤水分条件下的开花时间

IF 8.1 1区 生物学 Q1 PLANT SCIENCES New Phytologist Pub Date : 2025-04-23 Epub Date: 2025-03-17 DOI:10.1111/nph.70073
Wanqin Chen, Ting Wang, Xia Li, Jiannan Feng, Qingxiu Liu, Zhiyu Xu, Qiugui You, Lu Yang, Lei Liu, Shidie Chen, Zhichuang Yue, Houping Wang, Diqiu Yu
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引用次数: 0

摘要

干旱是影响植物生长发育的重要环境因子。因此，陆生植物已经进化出一系列的策略来减轻土壤水分不足的不利影响。其中一种策略，被称为干旱逃逸，涉及干旱下加速开花，从而使植物能够迅速完成其生命周期。然而，这种适应性反应的分子机制在很大程度上仍然不清楚。利用遗传、分子和生化技术，我们证明了AP2家族蛋白TOE1/2 （TARGET OF EAT /2）对拟南芥的干旱逃避反应至关重要，在这一过程中观察到其蛋白稳定性显著降低。我们的研究结果表明，环型E3泛素连接酶环域连接酶1/2 （RGLG1/2）与TOE1/2相互作用，并促进其在细胞核内的降解。在缺水条件下，RGLG1/2表达增加，其蛋白产物转运到细胞核中泛素化并降解TOE1/2，从而增强抗旱反应。此外，干旱条件下TOE1/2的丧失直接导致植物抗旱性的降低，这表明干旱逃逸是植物的高风险行为，RGLG1/2-TOE1/2信号级联可能是植物干旱逃逸与耐旱性之间平衡的中心调控机制。
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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Arabidopsis RGLG1/2 regulate flowering time under different soil moisture conditions by affecting the protein stability of TOE1/2

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来源期刊
New Phytologist
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.
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