The bHLH transcription factor regulated gene OsWIH2 is a positive regulator of drought tolerance in rice

文献类型： 外文期刊

第一作者： Gu, Xiangyang

作者： Gu, Xiangyang;Gao, Shuxin;Li, Jing;Song, Pengyu;Zhang, Qian;Guo, Jinfeng;Wang, Xiaoyan;Han, Xiaoyu;Wang, Xiaoji;Zhu, Zhengge;Zhu, Ying

作者机构：

关键词： OsWIH2; Drought stress; Oryza sativa; Transcriptional regulation

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：5.437； 五年影响因子：5.731 ）

ISSN： 0981-9428

年卷期： 2021 年 169 卷

页码：

收录情况： SCI

摘要： Drought is a major abiotic stress limiting crop growth and yield. In this study, we characterized a novel drought tolerance induced WIH gene in rice, OsWIH2. Overexpression of OsWIH2 in rice resulted in significantly higher drought tolerance, probably due to the decreased water loss rate and reactive oxygen species (ROS) accumulation under drought stress. We identified a long-chain fatty acid HOTHEAD (HTH) that interacted with OsWIH2 using yeast two-hybrid screening. OsWIH2 is an enzyme which is involved in fatty acid synthesis. We further demonstrated that the drought-inducible bHLH transcription factor OsbHLH130 could activate the expression of OsWIH2. Overall, our results suggest that drought stress may induce OsbHLH130 accumulation, which in turn activates OsWIH2 expression, and the latter improves rice drought tolerance by participating in cuticular wax biosynthesis and reducing the water loss rate as well as ROS accumulation. This research provides new genes for crop improvement.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序