Expression of the Arabidopsis vacuolar H+-pyrophosphatase gene AVP1 in peanut to improve drought and salt tolerance

文献类型： 外文期刊

第一作者： Qin, Hua

作者： Qin, Hua;Zhang, Yizheng;Gu, Qiang;Kuppu, Sundaram;Sun, Li;Zhu, Xunlu;Mishra, Neelam;Hu, Rongbin;Zhang, Hong;Shen, Guoxin;Zhang, Junling;Burow, Mark;Zhu, Longfu;Zhang, Xianlong;Payton, Paxton

作者机构：

关键词： Drought tolerance;Peanut transformation;Salt resistance;Transgenic plants;Yield improvement

期刊名称：PLANT BIOTECHNOLOGY REPORTS （ 影响因子：2.01； 五年影响因子：1.907 ）

ISSN： 1863-5466

年卷期： 2013 年 7 卷 3 期

页码：

收录情况： SCI

摘要： The Arabidopsis gene AVP1 encodes an H+-pyrophosphatase that functions as a proton pump at the vacuolar membranes, generating a proton gradient across vacuolar membranes, which serves as the driving force for many secondary transporters on vacuolar membranes such as Na+/H+-antiporters. Overexpression of AVP1 could improve drought tolerance and salt tolerance in transgenic plants, suggesting a possible way in improving drought and salt tolerance in crops. The AVP1 was therefore introduced into peanut by Agrobacterium-mediated transformation. Analysis of AVP1-expressing peanut indicated that AVP1-overexpression in peanut could improve both drought and salt tolerance in greenhouse and growth chamber conditions, as AVP1-overexpressing peanuts produced more biomass and maintained higher photosynthetic rates under both drought and salt conditions. In the field, AVP1-overexpressing peanuts also outperformed wild-type plants by having higher photosynthetic rates and producing higher yields under low irrigation conditions.

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