The functions of an apple cytosolic malate dehydrogenase gene in growth and tolerance to cold and salt stresses

被引：84

作者：

Yao, Yu-Xin ^{[1
]}

Dong, Qing-Long ^{[1
]}

Zhai, Heng ^{[1
]}

You, Chun-Xiang ^{[1
]}

Hao, Yu-Jin ^{[1
]}

机构：

[1] Shandong Agr Univ, Coll Hort Sci & Engn, Natl Res Ctr Apple Engn & Technol, State Key Lab Crop Biol, Tai An 271018, Shandong, Peoples R China

来源：

PLANT PHYSIOLOGY AND BIOCHEMISTRY | 2011年 / 49卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Apple (Malus domestica B.); Cytosolic malate dehydrogenase gene; Growth vigour; Cold and salt tolerance; ELECTRON-TRANSPORT; PLANT-MITOCHONDRIA; OXIDATIVE STRESS; METABOLISM; EXPRESSION; ATPASE; LEAVES; OVEREXPRESSION; TRANSFORMATION; REDUCTION;

D O I：

10.1016/j.plaphy.2010.12.009

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

It is well-known that cytosolic NAD-dependent malate dehydrogenase (cyMDH; L-malate:NAD-oxidoreductase; EC 1.1.1.37) is an enzyme crucial for malic acid synthesis in the cytosol. Nothing is known about cyMDH in growth and stress tolerance. Here we characterised the role of the apple cyMDH gene (MdcyMDH, GenBank ID: DQ221207) in growth and tolerance to cold and salt stresses. MdcyMDH transcripts were highly accumulated in vigorously growing apple tissues, organs and suspension cells. In addition, MdcyMDH was sensitive to cold and salt stresses. MdcyMDH overexpression favourably contributed to cell and plant growth and conferred stress tolerance both in the apple callus and tomato. Taken together, our results indicated that MdcyMDH is involved in plant and cell growth as well as the tolerance to cold and salt stresses. (C) 2010 Elsevier Masson SAS. All rights reserved.

引用

页码：257 / 264

页数：8

共 37 条

[1] Fruit-specific V-ATPase suppression in antisense-transgenic tomato reduces fruit growth and seed formation [J].