WRKY transcription factor 40 from eggplant (Solanum melongena L.) regulates ABA and salt stress responses

文献类型： 外文期刊

第一作者： Zhang, Aidong

作者： Zhang, Aidong;Xiao, Kai;Zhu, Weimin;Wu, Xuexia;Zha, Dingshi;Zhang, Min;Shang, Jing;Wang, Shengjie

作者机构： Shanghai Acad Agr Sci, Shanghai Key Lab Protected Hort Technol, Hort Res Inst, Shanghai 201403, Peoples R China;Wuhan Acad Agr Sci, Hort Res Inst, Wuhan 430345, Hubei, Peoples R China;Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China;Shanghai Qiande Seed Ind Co Ltd, Shanghai 200235, Peoples R China

期刊名称：SCIENTIFIC REPORTS （ 2023影响因子：3.8； 五年影响因子：4.3 ）

ISSN： 2045-2322

年卷期： 2024 年 14 卷 1 期

页码：

收录情况： SCI

摘要： Plants are affected by many environmental factors during their various stages of growth, among which salt stress is a key factor. WRKY transcription factors play important roles in the response to stress in plants. In this study, SmWRKY40 from eggplant (Solanum melongena L.) was found to belong to the subfamily of WRKY transcription factor group II, closely related to the evolution of wild tomato ScWRKY40 (Solanum chilense). The expression of SmWRKY40 could be induced by several abiotic stresses (drought, salt, and high temperature) and ABA to different degrees, with salt stress being the most significant. In Arabidopsis thaliana, the seed germination rate of SmWRKY40 overexpression seedlings was significantly higher than those of the wild type under high concentrations of NaCl and ABA, and root elongation of overexpression lines was also longer than wild type under NaCl treatments. SmWRKY40 overexpression lines were found to enhance Arabidopsis tolerance to salt with lower ROS, MDA, higher soluble protein, proline accumulation, and more active antioxidant enzymes. The expression level of genes related to stress and ABA signaling displayed significant differences in SmWRKY40 overexpression line than that of WT. These results indicate that SmWRKY40 regulates ABA and salt stress responses in Arabidopsis.

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