The maize late embryogenesis abundant protein ZmDHN13 positively regulates copper tolerance in transgenic yeast and tobacco

被引：17

作者：

Liu, Yang ^{[1
]}

Li, Daxing ^{[1
]}

Song, Qiping ^{[1
]}

Zhang, Tianpeng ^{[1
]}

Li, Dequan ^{[1
]}

Yang, Xinghong ^{[1
]}

机构：

[1] Shandong Agr Univ, Coll Life Sci, Shandong Key Lab Crop Biol, State Key Lab Crop Biol, Tai An 271018, Shandong, Peoples R China

来源：

CROP JOURNAL | 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; KS-TYPE DEHYDRIN; LACTATE-DEHYDROGENASE; CITRUS DEHYDRIN; METAL-BINDING; LEA PROTEIN; TEMPERATURE; IDENTIFICATION; SEGMENTS;

D O I：

10.1016/j.cj.2018.09.001

中图分类号：

S3 [农学（农艺学）];

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 Cu2+. 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. (C) 2019 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.

引用

页码：403 / 410

页数：8

共 29 条

[1] Overexpression of Prunus mume Dehydrin Genes in Tobacco Enhances Tolerance to Cold and Drought [J].