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| Content Provider | Springer Nature Link |
|---|---|
| Author | Wang, Xi Cai, Hua Li, Yong Zhu, Yanming Ji, Wei Bai, Xi Zhu, Dan Sun, Xiaoli |
| Copyright Year | 2014 |
| Abstract | Plasma membrane intrinsic proteins (PIPs) belong to the aquaporin family and facilitate water movement across plasma membranes. Existing data indicate that PIP genes are associated with the abilities of plants to tolerate certain stress conditions. A review of our Glycine soja expressed sequence tag (EST) dataset revealed that abiotic stress stimulated expression of a PIP, herein designated as GsPIP2;1 (GenBank_Accn: FJ825766). To understand the roles of this PIP in stress tolerance, we generated a coding sequence for GsPIP2;1 by in silico elongation and cloned the cDNA by 5′-RACE. Semiquantitative RT-PCR showed that GsPIP2;1 expression was stimulated in G. soja leaves by cold, salt, or dehydration stress, whereas the same stresses suppressed GsPIP2;1 expression in the roots. Transgenic Arabidopsis thaliana plants overexpressing GsPIP2;1 grew normally under unstressed and cold conditions, but exhibited depressed tolerance to salt and dehydration stresses. Moreover, greater changes in water potential were detected in the transgenic A. thaliana shoots, implying that GsPIP2;1 may negatively impact stress tolerance by regulating water potential. These results, deviating from those obtained in previous reports, provide new insights into the relationship between PIPs and abiotic stress tolerance in plants. |
| Starting Page | 103 |
| Ending Page | 113 |
| Page Count | 11 |
| File Format | |
| ISSN | 09189440 |
| Journal | Journal of Plant Research |
| Volume Number | 128 |
| Issue Number | 1 |
| e-ISSN | 16180860 |
| Language | English |
| Publisher | Springer Japan |
| Publisher Date | 2014-10-31 |
| Publisher Place | Tokyo |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Abiotic stress tolerance Aquaporin (AQP) Arabidopsis thaliana Glycine soja Major intrinsic protein (MIP) Plasma membrane intrinsic protein (PIP) Plant Sciences Plant Ecology Plant Physiology Plant Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science |
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