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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

作者： Qin, Hua 1 ; Gu, Qiang 2 ; Kuppu, Sundaram 2 ; Sun, Li 2 ; Zhu, Xunlu 2 ; Mishra, Neelam 2 ; Hu, Rongbin 2 ; Shen, Guoxin 3 ;

作者机构： 1.Sichuan Univ, Coll Life Sci, Chengdu 610064, Sichuan, Peoples R China

2.Texas Tech Univ, Dept Biol Sci, Lubbock, TX 79409 USA

3.Zhejiang Acad Agr Sci, Hangzhou, Zhejiang, Peoples R China

4.Texas A&M Univ, Texas AgriLife Res Ctr, Lubbock, TX 79403 USA

5.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan, Hubei, Peoples R China

6.ARS, USDA, Cropping Syst Res Lab, Lubbock, TX 79415 USA

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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[3]Co-overexpression of AVP1 and AtNHX1 in Cotton Further Improves Drought and Salt Tolerance in Transgenic Cotton Plants. Shen, Guoxin,Wei, Jia,Qiu, Xiaoyun,Hu, Rongbin,Kuppu, Sundaram,Zhang, Hong,Auld, Dick,Blumwald, Eduardo,Gaxiola, Roberto,Payton, Paxton.

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