HY5和PIF交替调节木质部K+/NO3−负载,促进根到茎的水分和养分运输的昼夜调节

IF 8.7 1区 生物学 Q1 PLANT SCIENCES New Phytologist Pub Date : 2025-02-20 Epub Date: 2025-02-02 DOI:10.1111/nph.20319
Si Jing, Han Zhang, Zidan Yang, Xin-Qiao Du, Yingying Hu, Shao-Shuai Wang, Shuwei Wang, Kaina Zhang, Zhen Li, Wei-Hua Wu, Jörg Kudla, Jigang Li, Yi Wang
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引用次数: 0

摘要

昼夜光暗循环调节养分的吸收和运输;然而,潜在的分子机制在很大程度上仍然未知。转录因子MYB59和离子转运体NPF7.3参与拟南芥根部到茎部的K+/NO3−转运。在本研究中,转录分析和western blotting实验显示MYB59-NPF7.3模块的日表达。ChIP-qPCR和EMSA显示转录因子HY5和PIF直接结合到MYB59启动子上。表型分析和离子含量测定表明,HY5和PIF通过MYB59-NPF7.3模块拮抗K+/NO3−根到茎的转运。我们发现HY5蛋白在根中积累,白天抑制MYB59的转录,而PIF蛋白在黑暗中促进MYB59的转录。NPF7.3转录本和蛋白的表达量在白天逐渐降低,而在夜间则升高。NPF7.3介导木质部K+/NO3−负载增强,可增加夜间根压,维持根与茎间水分/养分的转运。本研究揭示了植物光信号与养分转运之间的协同机制,并确定了根到茎的水分/养分转运驱动力量的昼夜分子开关。
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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Alternating inverse modulation of xylem K+/NO3− loading by HY5 and PIF facilitates diurnal regulation of root-to-shoot water and nutrient transport

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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.
期刊最新文献
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