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Co-overexpression of AVP1 and OsSIZ1 in Arabidopsis substantially enhances plant tolerance to drought, salt, and heat stresses

文献类型： 外文期刊

作者： Esmaeili, Nardana 1 ; Yang, Xiaojie 2 ; Cai, Yifan 1 ; Sun, Li 1 ; Zhu, Xunlu 1 ; Shen, Guoxin 3 ; Payton, Paxton 4 ; Fan 1 ;

作者机构： 1.Texas Tech Univ, Dept Biol Sci, Lubbock, TX 79409 USA

2.Henan Acad Agr Sci, Econ Crop Res Inst, Zhengzhou 450002, Henan, Peoples R China

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

4.ARS, USDA, Cropping Syst Res Lab, Lubbock, TX USA

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2019 年 9 卷

页码：

收录情况： SCI

摘要： Abiotic stresses such as water deficit, salt, and heat are major environmental factors that negatively affect plant growth, development, and productivity. Previous studies showed that overexpression of the Arabidopsis vacuolar H+-pyrophosphatase gene AVP1 increases salt and water deficit stress tolerance and overexpression of the rice SUMO E3 ligase gene OsSIZ1 improves heat and water deficit stress tolerance in transgenic plants. In this report, the effects of co-overexpression of AVP1 and OsSIZ1 in Arabidopsis on abiotic stress tolerance were studied. It was found that AVP1/OsSIZ1 co-overexpressing plants performed significantly better than AVP1-overexpressing plants and OsSIZ1-overexpressing plants, and produced 100% more seed than wild-type plants under single stress or multiple stress conditions. The increased stress tolerance in AVP1/OsSIZ1 co-overexpressing plants was substantially larger than the increased stress tolerance in AVP1-overexpressing plants and OsSIZ1-overexpressing plants under every abiotic stress condition tested. This research provides the proof-of-concept that crop yields might be substantially improved using this approach.

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