GhVOZ1-AVP1 module positively regulates salt tolerance in upland cotton (Gossypium hirsutum L.)
文献类型： 外文期刊
作者： Lian, Boying 1 ; Wu, Aimin 2 ; Wu, Hongmei 2 ; Lv, Xiaoyan 2 ; Sun, Mengxi 2 ; Li, Yiran 2 ; Lu, Zhengying 3 ; Li, Shiyun 3 ; An, Li 2 ; Guo, Xiaohao 1 ; Wei, Fei 2 ; Fu, Xiaokang 2 ; Lu, Jianhua 2 ; Wang, Hantao 2 ; Ma, Liang 2 ; Wei, Hengling 2 ; Yu, Shuxun 1 ;
作者机构： 1.Northwest A&F Univ, Coll Agron, Yangling 712100, Shannxi, Peoples R China
2.Chinese Acad Agr Sci, Inst Cotton Res, Natl Key Lab Cotton Biobreeding & Integrated Utili, Anyang 455000, Henan, Peoples R China
3.Handan Acad Agr Sci, Handan 056000, Hebei, Peoples R China
关键词： Upland cotton; GhVOZ1; GhAVP1; Salt stress
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.2； 五年影响因子：7.8 ）
ISSN： 0141-8130
年卷期： 2024 年 258 卷
页码：
收录情况： SCI
摘要： Vascular Plant One-zinc Finger (VOZ) transcription factor can respond to a variety of abiotic stresses, however its function in cotton and the molecular mechanisms of response to salt tolerance remained unclear. In this study, we found that GhVOZ1 is highly expressed in stamen and stem of cotton under normal conditions. The expression of GhVOZ1 increased significantly after 3 h of salt treatment in three-leaf staged upland cotton. Overexpressed transgenic lines of GhVOZ1 in Arabidopsis and upland cotton were treated with salt stress and we found that GhVOZ1 could respond positively to salt stress. GhVOZ1 can regulate Arabidopsis Vacuolar Proton Pump Pyrophosphatase (H+-PPase) gene (AVP1) expression through specific binding to GCGTCTAAAGTACGC site on GhAVP1 promoter, which was examined through Dual-luciferase assay and Electrophoretic mobility shift assay (EMSA). AVP1 expression was significantly increased in Arabidopsis with GhVOZ1 overexpression, while GhAVP1 expression was decreased in virus induced gene silenced (VIGS) cotton plants of GhVOZ1. Knockdown of GhAVP1 expression in cotton plants by VIGS showed decreased superoxide dismutase (SOD) and peroxidase (POD) activities, whereas an increased malondialdehyde (MDA) content and ultimately decreased salt tolerance. The GhVOZ1-AVP1 module could maintain sodium ion homeostasis through cell ion transport and positively regulate the salt tolerance in cotton, providing new ideas and insights for the study of salt tolerance.
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