Molecular characterization of HbEREBP2, a jasmonate-responsive transcription factor from Hevea brasiliensis Muell. Arg.

文献类型： 外文期刊

第一作者： Chen, Yue-Yi

作者： Chen, Yue-Yi;Wang, Li-Feng;Yang, Shu-Guang;Tian, Wei-Min;Chen, Yue-Yi

作者机构：

关键词： Hevea brasiliensis;Laticifer;defense proteins;AP2/ERF transcription factor;Methyl jasmonates;Ethephon;mechanical wounding

期刊名称：AFRICAN JOURNAL OF BIOTECHNOLOGY （ 影响因子：0.573； 五年影响因子：0.794 ）

ISSN： 1684-5315

年卷期： 2011 年 10 卷 48 期

页码：

收录情况： SCI

摘要： Transcription factors of AP2/ERF superfamily are generally involved in defense responses of plants to biotic and abiotic stresses. Although, defense proteins are present in abundance in laticifers of rubber tree, little is known about their transcriptional regulation. In this study, a full length cDNA, referred to as HbEREBP2 was characterized by means of bioinformatic analysis and quantitative real-time RT-PCR. The HbEREBP2 was 786-bp in length and contained a 480-bp open reading frame (ORF) encoding a protein of 159 amino acid residues. Bioinformatic analysis showed that the deduced amino acid sequence of HbEREBP2 had a specific domain of AP2 superfamily and shared relative high identity with members of CBF/DREB subfamily from different plant species. Quantitative real-time RT-PCR revealed that methyl jasmonate was more effective than ethylene and rapidly than mechanical wounding on up-regulating HbEREBP2 expression. The results suggest that HbEREBP2 may be involved in the regulation of jasmonate-mediated defense responses in laticifers of rubber tree.

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