Identification of a Novel cis-Regulatory Element Region Responded to UV-B in Rice WRKY89 Promoter

文献类型： 外文期刊

第一作者： Zhao Chang-Jiang

作者： Zhao Chang-Jiang;Chen Xu-Jun;Guo Ze-Jian;Hao Zhong-Na;Wang Hai-Hua

作者机构：

关键词： rice;promoter;UV-B;cis-regulatory element

期刊名称：PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS （ 影响因子：0.351； 五年影响因子：0.272 ）

ISSN： 1000-3282

年卷期： 2010 年 37 卷 6 期

页码：

收录情况： SCI

摘要： OsWRKY89, a rice WRKY transcription factor gene, is induced by UV-B radiation. To identify the cis-elements in the OsWRKY89 promoter related to UV-B response, the promoter and its deleted fragments were each fused with gus reporter gene and transformed into rice calli. The transgenic plants regenerated were used to analyze their responses to UV-B irradiation. Finally, an UV-B response cis-regulatory element was narrowed to the region of 25 bp between -1 188 and -1 213 upstream the translation start site of OsWRKY89 gene, including nucleotide sequence of AAGATCTACCATTGCTCTATAGCTT. Through analysis of the promoter of OsWRKY89 and 28 genes up-regulated by UV-B treatment, two relatively conserved UV-B response elements in the 1 500 bp protmoter region studied were located. Coincidental, the 25 bp of OsWRKY89 promoter contains one of the conserved elements. Furthermore, several conserved light-response elements including ACE(OsWRKY89), MRE(OsWRKY89) and UVBox(AtANAC13) were also found to adjoine to the 25 bp UV-B response region in the OsWRKY89 promoter, suggesting they together play roles in regulating the light responses of the gene.

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