GhDof1.7, a Dof Transcription Factor, Plays Positive Regulatory Role under Salinity Stress in Upland Cotton

文献类型： 外文期刊

第一作者： Li, Yi

作者： Li, Yi;Lu, Jianhua;Fu, Xiaokang;Ma, Liang;Wei, Hengling;Wang, Hantao;Li, Yi;Tian, Miaomiao;Feng, Zhen;Zhang, Jingjing;Lu, Jianhua;Fu, Xiaokang;Ma, Liang;Wei, Hengling;Wang, Hantao;Wang, Hantao

作者机构：

关键词： upland cotton; DNA-binding with one finger; ABA; H2O2; salt stress

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

ISSN：

年卷期： 2023 年 12 卷 21 期

页码：

收录情况： SCI

摘要： Salt stress is a major abiotic stressor that can severely limit plant growth, distribution, and crop yield. DNA-binding with one finger (Dof) is a plant-specific transcription factor that plays a crucial role in plant growth, development, and stress response. In this study, the function of a Dof transcription factor, GhDof1.7, was investigated in upland cotton. The GhDof1.7 gene has a coding sequence length of 759 base pairs, encoding 252 amino acids, and is mainly expressed in roots, stems, leaves, and inflorescences. Salt and abscisic acid (ABA) treatments significantly induced the expression of GhDof1.7. The presence of GhDof1.7 in Arabidopsis may have resulted in potential improvements in salt tolerance, as suggested by a decrease in H2O2 content and an increase in catalase (CAT) and superoxide dismutase (SOD) activities. The GhDof1.7 protein was found to interact with GhCAR4 (C2-domain ABA-related 4), and the silencing of either GhDof1.7 or GhCAR4 resulted in reduced salt tolerance in cotton plants. These findings demonstrate that GhDof1.7 plays a crucial role in improving the salt tolerance of upland cotton and provide insight into the regulation of abiotic stress response by Dof transcription factors.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序