Potato plants bearing a vacuolar Na+/H+ antiporter HvNHX2 from barley are characterized by improved salt tolerance

被引：15

作者：

Bayat, F. ^{[1
,2
,3
]}

Shiran, B. ^{[1
]}

Belyaev, D. V. ^{[2
,4
,5
]}

Yur'eva, N. O. ^{[5
]}

Sobol'kova, G. I. ^{[5
]}

Alizadeh, H. ^{[5
]}

Khodambashi, M. ^{[1
]}

Babakov, A. V. ^{[6
]}

机构：

[1] Univ Shahrekord, Dept Agron & Plant Breeding, Fac Agr, Shahrekord, Iran

[2] Russian State Agrarian Univ MTAA, KA Timiryazev, Moscow 127550, Russia

[3] Russian Acad Sci, KA Timiryazev Plant Physiol Inst, Moscow 127276, Russia

[4] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Russia

[5] Univ Tehran, Coll Agr, Dept Agr Biotechnol, Karaj 315871116, Iran

[6] Russian Acad Agr Sci, All Russia Inst Agr Biotechnol, Moscow 127550, Russia

来源：

RUSSIAN JOURNAL OF PLANT PHYSIOLOGY | 2010年 / 57卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

Solanum tuberosum; vacuolar Na+/H+ antiporter; salt tolerance; genetic engineering; SALINITY TOLERANCE; OVEREXPRESSION; GENE; TRANSFORMATION;

D O I：

10.1134/S1021443710050134

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Two cultivars of potato (Solanum tuberosum L.) were transformed with a barley antiporter gene HvNHX2 driven by the CaMV 35S promoter. The expressed transgene conferred a higher NaCl tolerance to one of the cultivars. Under salt stress, the more salt-tolerant transgenic plants had longer roots, higher dry weight, and suppressed cell expansion as compared to wild-type plants. The salt tolerance of the plants grown in vitro was not accompanied by elevated total sodium in any plant organs tested. Instead, higher potassium was found in roots of transgenic plants. Possible mechanisms of plant salt tolerance are discussed.

引用

页码：696 / 706

页数：11

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