文献类型： 外文期刊
作者： Zhang, Lina 1 ; Yu, Zhen 1 ; Liu, Xingyan 1 ; Wang, Yaoyao 1 ; Luo, Jing 1 ; Wang, Yinghong 2 ; Yang, Ning 1 ; Du, Jie 1 ; Ding, Lan 1 ; Xia, Chuan 3 ; Zhang, Lichao 3 ; Kong, Xiuying 3 ;
作者机构： 1.Northwest Normal Univ, Coll Life Sci, Lanzhou 730070, Gansu, Peoples R China
2.Xinxiang Acad Agr Sci, Xinxiang 453000, Henan, Peoples R China
3.Chinese Acad Agr Sci, Key Lab Crop Gene Resources & Germplasm Enhancemen, Natl Key Facil Crop Gene Resources & Genet Improve, Inst Crop Sci,MOA, Beijing 100081, Peoples R China
关键词： Transcription factor; TabZIP11-D; TaCDPK1/5/9-1/30/TaCIPK31; Dimer; Salt; Freezing
期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：5.7； 五年影响因子：6.4 ）
ISSN： 0981-9428
年卷期： 2025 年 224 卷
页码：
收录情况： SCI
摘要： Most subgroup S1 basic leucine zipper (bZIP) transcription factors (TFs) play a crucial role in the abiotic stress responses. However, their functions and molecular mechanisms remain poorly characterized in wheat (Triticum aestivum L.). In this study, we identified a novel subgroup S1 bZIP gene, designated TabZIP11-D, which was transcriptionally responsive to abscisic acid (ABA), salt, and cold stresses. TabZIP11-D encodes a nuclear-localized protein that lacks transcriptional activation activity in yeast. The Ca2+ blocker LaCl3 significantly suppressed the salt-induced expression of TabZIP11-D. TabZIP11-D interacted with the Ca2+-dependent protein kinases (TaCDPK1, TaCDPK5, TaCDPK9-1, and TaCDPK30) and the CBL-interacting protein kinase TaCIPK31. Overexpression of TabZIP11-D enhanced salt and freezing tolerance by modulating soluble sugar and proline accumulation, reducing hydrogen peroxide (H2O2) and malondialdehyde (MDA) contents, and regulating the expression levels of stress-responsive genes. Furthermore, TabZIP11-D formed a homodimer with itself and heterodimers with group C bZIP proteins. Modified yeast one-hybrid assays revealed that TabZIP14 and TabZIP36 significantly enhanced TabZIP11-D binding to the G-box cis-element in the promoter region of TaCBF1 gene. These findings demonstrate that TabZIP11-D heterodimerizes with TabZIP14/36 to regulate cold signaling by promoting the TaCBF1 transcription. TabZIP11-D functions as a positive regulator in the salt stress response by interacting with TaCDPK1/5/9-1/30 and TaCIPK31.
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