OsbZIP27 coordinates with OsHUB1 and OsHUB2 to modulate drought tolerance in rice

文献类型： 外文期刊

第一作者： Xu, Zuntao

作者： Xu, Zuntao;Yang, Yachun;Li, Hao;Ma, Hui;Wu, Wenge;Xu, Zuntao;Yang, Yachun;Li, Hao;Ma, Hui;Wu, Wenge;Xu, Zuntao;Zhang, Fei;Ding, Yong;Xu, Zuntao;Zhang, Fei;Ding, Yong;Wu, Wenge

作者机构：

关键词： H2B monoubiquitination; Drought stress; bZIP transcription factor; Ring domain protein; Potassium transporter; Glucanase

期刊名称：JOURNAL OF GENETICS AND GENOMICS （ 影响因子：7.1； 五年影响因子：6.4 ）

ISSN： 1673-8527

年卷期： 2025 年 52 卷 2 期

页码：

收录情况： SCI

摘要： Histone H2B ubiquitination (H2Bub) is positively linked to transcriptional activation, but the genetic programs affected by H2Bub to enhance drought tolerance remain largely unknown. Here, we show that OsbZIP27 interacts directly with OsHUB1/2 to regulate drought tolerance in rice by binding to the promoters of OsHAK1 and OsGLN1 to achieve H2Bub and transcriptional activation. Consistently, mutations in OsbZIP27 reduce transcription of OsHAK1 and OsGLN1, resulting in increased sensitivity to drought stress. Moreover, loss of OsHUB1 and OsHUB2 function causes hypersensitivity to drought stress, whereas OsHUB2 overexpression enhances drought tolerance. Together, our results indicate that OsbZIP27 coordinates with OsHUB1/2 to enhance rice drought tolerance by increasing H2Bub and expression of OsHAK1 and OsGLN1. Copyright (c) 2024, The Authors. Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, and Genetics Society of China. Published by Elsevier Limited and Science Press. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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