数字农科院2.0

Enhanced tolerance to drought stress resulting from Caragana korshinskii CkWRKY33 in transgenic Arabidopsis thaliana

文献类型： 外文期刊

作者： Zhen Li;Fengping Liang;Tianbao Zhang;Na Fu;Xinwu Pei;Yan Long

作者机构：

关键词： CkWRKY33; Drought stress; Transgenic Arabidopsis thaliana; WRKY

期刊名称： BMC Genomic Data

ISSN： 2730-6844

年卷期： 2021 年 22 卷 1 期

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收录情况： 不在遴选数据库范围

摘要： Background: It is well known that WRKY transcription factors play important roles in plant growth and development, defense regulation and stress responses. Results: In this study, a WRKY transcription factor, WRKY33, was cloned from Caragana korshinskii. A sequence structure analysis showed that it belonged to the Group-I type. Subcellular localization experiments in tobacco epidermal cells showed the presence of CkWRKY33 in the nucleus. Additionally, CkWRKY33 was overexpressed in Arabidopsis thaliana. A phenotypic investigation revealed that compared with wild-type plants, CkWRKY33-overexpressing transgenic plants had higher survival rates, as well as relative soluble sugar, proline and peroxidase contents, but lower malondialdehyde contents, following a drought stress treatment. Conclusions: This suggested that the overexpression of CkWRKY33 led to an enhanced drought-stress tolerance in transgenic A. thaliana. Thus, CkWRKY33 may act as a positive regulator involved in the drought-stress responses in Caragana korshinskii. © 2021, The Author(s).

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