The maize late embryogenesis abundant protein Zm DHN13 positively regulates copper tolerance in transgenic yeast and tobacco

被引：5

作者：

Yang Liu ^{[1
]}

Daxing Li ^{[1
]}

Qiping Song ^{[1
]}

Tianpeng Zhang ^{[1
]}

Dequan Li ^{[1
]}

Xinghong Yang ^{[1
]}

机构：

[1] State Key Laboratory of Crop Biology/Shandong Key Laboratory of Crop Biology/College of Life Sciences, Shandong Agricultural University

来源：

TheCropJournal | 2019年 / 7卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Maize; LEA proteins; Dehydrins; ZmDHN13; Copper stress;

D O I：

暂无

中图分类号：

S513 [玉米（玉蜀黍）];

学科分类号：

0901 ;

摘要：

Late embryogenesis abundant（LEA） proteins accumulate in the late stage of plant seed development, and are upregulated in most plants during drought, cold, heat, or salinity stress.LEA proteins can be classified by amino-acid sequence into seven groups.Dehydrins belong to LEA protein group II.In previous studies, the maize KS type dehydrin ZmDHN13 increased the tolerance of transgenic tobacco to oxidative stress.In the present study, ZmDHN13 was identified under copper stress conditions, and the protein was then characterized using transgenic yeast and tobacco plants to investigate its functions.ZmDHN13 bound Cu;.Its overexpression in transgenic tobacco conferred tolerance to copper stress by binding metals and reducing the accumulation of reactive oxygen species（ROS）.Three conserved domains displayed a cooperative effect under copper stress conditions.

引用

页码：403 / 410

页数：8

共 10 条

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