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Identification of a 1,274-bp promoter of a Musa acuminata L. aquaporin gene (MaPIP1;1) which confers salinity stress inducibility in transgenic Arabidopsis

文献类型： 外文期刊

作者： Song, Shun 1 ; Ma, Funing 2 ; Huang, Dongmei 2 ; Wu, Bin 2 ; Ma, Chaozhi 1 ; Li, Jingyang 1 ; Li, Yujia 2 ; Wei, Qing 2 ; Su 1 ;

作者机构： 1.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Natl Ctr Plant Gene Res Wuhan, Wuhan 430070, Hubei, Peoples R China

2.Chinese Acad Trop Agr Sci, Haikou Expt Stn, Key Lab Genet Improvement Bananas, Haikou 571101, Hainan, Peoples R China

3.Hainan Key Lab Biosafety Monitoring & Mol Breedin, Sanya 572000, Hainan, Peoples R China

期刊名称：AGRONOMY JOURNAL （ 影响因子：2.24； 五年影响因子：2.829 ）

ISSN： 0002-1962

年卷期： 2021 年 113 卷 2 期

页码：

收录情况： SCI

摘要： Salt stress will seriously influence alt stress in banana (Musa L.) induces MaPIP1;1, which enhances the salt resistance of transgenic Arabidopsis. The promoter pMaPIP1;1, located 13,62 bp upstream of the transcriptional start site, was isolated from the banana genome, and four pMaPIP1;1::GUS fusion constructs namely M-P1, M-P2, M-P3, and M-P4 were used to transform into Arabidopsis. In this work, in order to functionally verify the promoter responds to high salt stress, we used NaCl treatment for simulating salt terms. NaCl treatment is responded to by four transformants. M-P2 (-1,274 bp to -1) showed the highest transcriptional activity among all transgenic Arabidopsis transformants. This area of the promoter endows high glucuronidase (GUS) enzyme activity according to NaCl treatment. These results will help us understand the transcriptional regulatory of MaPIP1;1, and promoter fragment M-P2 will be an ideal candidate for overexpression of salt response genes to increase plant resistance.

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