Molecular cloning, subcellular localization, and expression of BsWRKY51 gene from Bletilla striata

IF 1.7 4区 生物学 Q4 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Shuangshuang Wang, Yuxia Zheng, Quanli Dou, Zhengling Zhang, Boping Zeng, Ying Li, Yongchun Qian, Li Ma
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Abstract

The WRKY transcription factor family plays a key role in plant growth and development, hormone signaling, and resistance to environmental stress. In this study, we investigated the gene sequence, subcellular localization, and response pattern of a member of the WRKY transcription factor family to reveal its protein structure and involvement in the resistance signaling pathway.The BsWRKY51 gene was cloned by RT-PCR, and the structural characteristics of its encoded protein WRKY51 were analyzed by bioinformatics. The vector was next transiently transformed into tobacco to analyze the subcellular localization, and real-time fluorescence quantitative PCR was performed to analyze the changes in the expression pattern of BsWRKY51. The BsWRKY51 gene has a coding sequence (CDS) length of 987 bp.The respective unstable hydrophilic protein BsWRKY51 is localized in the nucleus. It most closely related to the WRKY protein of Dendrobium catenatum in the Orchidaceae family. Fluorescence quantitative PCR results showed that the BsWRKY51 expression in the leaves was significantly higher than that in the roots, stems, and pseudobulbs of Bletilla striata seedlings. Under the conditions of salt and drought stress, the BsWRKY51 expression gradual increased and then a slightly decreased, and under salicylic acid (SA) treatment, the expression of BsWRKY51 showed an overall decreasing trend.The BsWRKY51 gene of Bletilla striata may play an important regulatory role in its salt and drought stress responses. Our present findings provide the foundation for elucidating the mechanisms of salt and drought tolerance in Bletilla striata and for breeding new varieties.

Abstract Image

横纹金鱼 BsWRKY51 基因的分子克隆、亚细胞定位和表达
WRKY 转录因子家族在植物生长发育、激素信号转导和抗环境胁迫中起着关键作用。本研究研究了 WRKY 转录因子家族中一个成员的基因序列、亚细胞定位和响应模式,以揭示其蛋白结构和参与抗性信号通路的情况。然后将载体瞬时转化到烟草中分析其亚细胞定位,并进行实时荧光定量 PCR 分析 BsWRKY51 表达模式的变化。BsWRKY51基因的编码序列(CDS)长度为987 bp。它与兰科植物铁皮石斛的 WRKY 蛋白关系最为密切。荧光定量 PCR 结果表明,BsWRKY51 在叶片中的表达量明显高于根、茎和假鳞茎中的表达量。在盐胁迫和干旱胁迫条件下,BsWRKY51的表达量先逐渐增加后略有下降,而在水杨酸(SA)处理条件下,BsWRKY51的表达量总体呈下降趋势。本研究结果为阐明条纹叶女贞的耐盐和耐旱机制以及培育新品种奠定了基础。
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来源期刊
Plant Biotechnology Reports
Plant Biotechnology Reports 生物-生物工程与应用微生物
CiteScore
4.10
自引率
4.20%
发文量
72
审稿时长
>12 weeks
期刊介绍: Plant Biotechnology Reports publishes original, peer-reviewed articles dealing with all aspects of fundamental and applied research in the field of plant biotechnology, which includes molecular biology, genetics, biochemistry, cell and tissue culture, production of secondary metabolites, metabolic engineering, genomics, proteomics, and metabolomics. Plant Biotechnology Reports emphasizes studies on plants indigenous to the Asia-Pacific region and studies related to commercialization of plant biotechnology. Plant Biotechnology Reports does not exclude studies on lower plants including algae and cyanobacteria if studies are carried out within the aspects described above.
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