Overexpression and knockdown of cotton GhdadD gene reveals its drought and salt stress tolerance role
文献类型： 外文期刊
作者： Zhang, Yuanyuan 1 ; Zheng, Jie 2 ; Linyerera, Shiraku Margaret 2 ; Magwanga, Richard Odongo 2 ; Hou, Yuqing 2 ; Wang, Yuhong 2 ; Xu, Yanchao 2 ; Khan, Aziz 3 ; Yu, Shuxun 2 ; Zhou, Zhongli 2 ; Liu, Fang 2 ; Cai, Xiaoyan 1 ;
作者机构： 1.Chinese Acad Agr Sci, Natl Nanfan Res Inst Sanya, Sanya 572025, Peoples R China
2.Chinese Acad Agr Sci, Inst Cotton Res, Natl Key Lab Cotton Biobreeding & Integrated Utili, ICR,CAAS, Anyang 455000, Henan, Peoples R China
3.Lanzhou Univ, Coll Ecol, State Key Lab Grassland Agroecosystems, Lanzhou 730000, Peoples R China
4.Zhengzhou Univ, Sch Agr Sci, Zhengzhou, Peoples R China
期刊名称：ISCIENCE （ 影响因子：5.8； 五年影响因子：5.8 ）
ISSN：
年卷期： 2024 年 27 卷 1 期
页码：
收录情况： SCI
摘要： The 50-deoxyadenosine deaminase (DADD), a member of the amidohydrolase family regulates biological purine metabolism. In this study, bioinformatic analysis, overexpression and knockdown of GhdadD gene were detected to identify its potential role in drought and salt stress tolerance. The results revealed that GhdadD was induced by ABA, Auxin, MBS and light responsive elements. In transgenic Arabidopsis, seed germination rate and root length were increased under drought or salt stress. GhdadD overexpressed seedlings resulted in higher plant height, less leaf damage and lower ion permeability. The expression of osmotic stress and ABA-responsive genes were up regulated. While in GhdadD-silenced cotton seedlings, CAT, SOD activity and soluble sugar content were reduced, MDA content was increased, and the stoma opening was depressed under drought or salt stress. Some osmics stress marker genes were also up regulated. These data indicating that GhdadD enhanced plant resistance to drought and salt stress through ABA pathways.
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