ZmADF5, a Maize Actin-Depolymerizing Factor Conferring Enhanced Drought Tolerance in Maize

文献类型： 外文期刊

第一作者： Liu, Bojuan

作者： Liu, Bojuan;Yang, Ruisi;Wang, Xiaonan;Luo, Ping;Chen, Yong;Wang, Fei;Li, Mingshun;Weng, Jianfeng;Zhang, Degui;Yong, Hongjun;Han, Jienan;Zhou, Zhiqiang;Hao, Zhuanfang;Li, Xinhai;Wang, Nan;Zhang, Xuecai

作者机构：

关键词： maize (Zea mays L.); drought tolerance; ZmADF5; transcriptome analysis

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN： 2223-7747

年卷期： 2024 年 13 卷 5 期

页码：

收录情况： SCI

摘要： Drought stress is seriously affecting the growth and production of crops, especially when agricultural irrigation still remains quantitatively restricted in some arid and semi-arid areas. The identification of drought-tolerant genes is important for improving the adaptability of maize under stress. Here, we found that a new member of the actin-depolymerizing factor (ADF) family; the ZmADF5 gene was tightly linked with a consensus drought-tolerant quantitative trait locus, and the significantly associated signals were detected through genome wide association analysis. ZmADF5 expression could be induced by osmotic stress and the application of exogenous abscisic acid. Its overexpression in Arabidopsis and maize helped plants to keep a higher survival rate after water-deficit stress, which reduced the stomatal aperture and the water-loss rate, as well as improved clearance of reactive oxygen species. Moreover, seventeen differentially expressed genes were identified as regulated by both drought stress and ZmADF5, four of which were involved in the ABA-dependent drought stress response. ZmADF5-overexpressing plants were also identified as sensitive to ABA during the seed germination and seedling stages. These results suggested that ZmADF5 played an important role in the response to drought stress.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序