ECTOPIC EXPRESSION OF SUBUNIT A OF VACUOLAR H+-ATPASE FROM APPLE ENHANCES SALT TOLERANCE IN TOBACCO PLANTS

文献类型： 外文期刊

第一作者： Dong, Q. L.

作者： Dong, Q. L.;Liu, D. D.;Wang, Q. J.;Fang, M. J.;Hao, Y. J.;Yao, Y. X.;Dong, Q. L.;Liu, D. D.

作者机构：

关键词： Malus domestica;Nicotiana tabacum;vacuolar H+-ATPase subunit A;gene expression;over-expression;salt stress

期刊名称：RUSSIAN JOURNAL OF PLANT PHYSIOLOGY （ 影响因子：1.481； 五年影响因子：1.608 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Vacuolar H+-ATPase (VHA) as one of plant proton pumps in the tonoplast plays a very important role in plant growth and stress tolerances. In this paper, we reported that expression of the apple (Mains domestica B.) vacuolar H+-ATPase subunit/I (MdVHA-A) was induced by salt stress in apple in vitro shootcultures. Additionally, MdVHA-A overexpression enhanced the resistance to salinity in the transgenic tobacco (Nicotiana tabacum L.) plants. Compared to control tobacco plants, the transgenic plants exhibited the higher Na+, K+, and proline content but lower M DA content in leaves and roots. Therefore, these results indicate that expression of MdVHA-A can enhance plant tolerance to salt stress by modulating internal stores of ions and solutes.

分类号： Q94

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