TaSnRK3.23B, a CBL-interacting protein kinase of wheat, confers drought stress tolerance by promoting ROS scavenging in Arabidopsis
文献类型： 外文期刊
作者： Dong, Feiyan 1 ; Liu, Yide 1 ; Zhang, Huadong 1 ; Li, Yaqian 1 ; Song, Jinghan 2 ; Chen, Sheng 1 ; Wang, Shuailei 1 ; Zhu, Zhanwang 1 ; Li, Yan 3 ; Liu, Yike 1 ;
作者机构： 1.Hubei Acad Agr Sci, Inst Food Crops, Key Lab Crop Mol Breeding, Minist Agr & Rural Affairs,Hubei Key Lab Food Crop, Wuhan 430064, Peoples R China
2.Zhejiang Univ, Inst Crop Sci, Natl Key Lab Rice Biol, Hangzhou 310058, Peoples R China
3.Yangtze Univ, Coll Agr, Key Lab Sustainable Crop Prod Middle Reaches, Yangtze River Coconstruct Minist & Prov, Jingzhou, Peoples R China
关键词：
Wheat;
期刊名称：BMC PLANT BIOLOGY （ 影响因子：4.8； 五年影响因子：5.4 ）
ISSN： 1471-2229
年卷期： 2025 年 25 卷 1 期
页码：
收录情况： SCI
摘要： BackgroundSucrose non-fermenting-1-related protein kinases (SnRKs) have been implicated in plant growth and stress responses. Although SnRK3.23 is known to be involved in drought stress, the underlying mechanism of resistance differs between Arabidopsis and rice, and little is known about its function in wheat.ResultsIn the current work, TaSnRK3.23B was detected on the cell membrane and in the nucleus. TaSnRK3.23B overexpression in Arabidopsis promoted reactive oxygen species (ROS) scavenging via the accumulation of antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) and then conferred significant tolerance to drought. The prediction analysis, yeast two-hybrid, and bimolecular fluorescence complementation (BiFC) assays revealed that TaSnRK3.23B interacted with TaCBL2B and TaCBL6B, which are calcineurin B-like (CBL) proteins. The predicted model demonstrated that TaSnRK3 subfamily proteins participate in Ca2+ signaling mediated by TaCBL2B/TaCBL6B and subsequently provide drought stress tolerance by promoting ROS scavenging in wheat.ConclusionsAltogether, the obtained findings contribute to a better understanding of the functions of SnRK3.23 in wheat and offer genetic suggestions for improving drought resistance of wheat.
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