Soybean DRE-binding transcription factors that are responsive to abiotic stresses

被引：182

作者：

Li, XP

Tian, AG

Luo, GZ

Gong, ZZ

Zhang, JS ^{[1
]}

Chen, SY

机构：

[1] Chinese Acad Sci, Inst Genet & Dev Biol, Natl Key Lab Plant Genom, Beijing 100101, Peoples R China

[2] China Agr Univ, Coll Biol Sci, Dept Plant Sci, Beijing 100094, Peoples R China

来源：

THEORETICAL AND APPLIED GENETICS | 2005年 / 110卷 / 08期

关键词：

D O I：

10.1007/s00122-004-1867-6

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Three DREB homologue genes, GmDREBa, GmDREBb, and GmDREBc, were isolated from soybean, Glycine max (L.) Merr. Each of the deduced proteins contains an AP2 domain of 64 amino acids. Yeast one-hybrid assay revealed that all of the three dehydration-responsive, element-binding proteins specifically bound to the dehydration-responsive element. Analysis of transcriptional activation abilities of these proteins in yeast indicated that GmDREBa and GmDREBb could activate the expression of a reporter gene, whereas GmDREBc could not. The transcriptions of GmDREBa and GmDREBb were induced by salt, drought, and cold stresses in leaves of soybean seedlings. The expression of GmDREBc was not significantly affected in leaves but apparently induced in roots by salt, drought, and abscisic acid treatments. These results suggest that these three genes function specifically in response to abiotic stresses in soybean.

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页码：1355 / 1362

页数：8

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