Functional Characterization of Date Palm Aquaporin Gene <i>PdPIP1;2</i> Confers Drought and Salinity Tolerance to Yeast and Arabidopsis
Recent studies on salinity tolerance in date palm revealed the discovery of salt-responsive genes including <i>PdPIP1;2</i>, a highly conserved aquaporin gene in plants, which was functionally characterized in this study to investigate its precise role in drought and salinity tolerance....
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doaj-7bb425c4b98942f68945e54d71a37fe72020-11-25T02:16:02ZengMDPI AGGenes2073-44252019-05-0110539010.3390/genes10050390genes10050390Functional Characterization of Date Palm Aquaporin Gene <i>PdPIP1;2</i> Confers Drought and Salinity Tolerance to Yeast and ArabidopsisHimanshu V. Patankar0Ibtisam Al-Harrasi1Rashid Al-Yahyai2Mahmoud W. Yaish3Department of Biology, College of Sciences, Sultan Qaboos University, P.O. Box 36, Muscat 123, OmanDepartment of Biology, College of Sciences, Sultan Qaboos University, P.O. Box 36, Muscat 123, OmanDepartment of Crop Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, P.O. Box 34, Muscat 123, OmanDepartment of Biology, College of Sciences, Sultan Qaboos University, P.O. Box 36, Muscat 123, OmanRecent studies on salinity tolerance in date palm revealed the discovery of salt-responsive genes including <i>PdPIP1;2</i>, a highly conserved aquaporin gene in plants, which was functionally characterized in this study to investigate its precise role in drought and salinity tolerance. Immunoblot assay showed a high level of PIP1 protein accumulation only in the leaves of date palm plants when grown under drought, an observation which may imply the involvement of PIP1;2 in CO<sub>2</sub> uptake. Heterologous overexpression of <i>PdPIP1;2</i> in yeast (<i>Saccharomyces cerevisiae</i>) improved tolerance to salinity and oxidative stress. While, heterologous overexpression of <i>PdPIP1;2</i> in Arabidopsis had significantly (<i>p</i> < 0.05) increased biomass, chlorophyll content, and root length under drought and salinity. In addition, a significantly (<i>p</i> < 0.05) higher percentage of transgenic plants could be recovered by rewatering after drought stress, indicating the ability of the transgenic plants to maintain water and viability under drought. Transgenic plants under drought and salinity maintained significantly (<i>p</i> < 0.05) higher K<sup>+</sup>/Na<sup>+</sup> ratios than wild type (WT) plants, an observation which may represent an efficient tolerance mechanism controlled by the transgene. Collectively, this study provided an insight on the mechanism by which <i>PdPIP1;2</i> conferred tolerance to salt and drought stresses in date palm.https://www.mdpi.com/2073-4425/10/5/390aquaporinsabiotic stresssalinitydate palmfunctional characterization |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Himanshu V. Patankar Ibtisam Al-Harrasi Rashid Al-Yahyai Mahmoud W. Yaish |
spellingShingle |
Himanshu V. Patankar Ibtisam Al-Harrasi Rashid Al-Yahyai Mahmoud W. Yaish Functional Characterization of Date Palm Aquaporin Gene <i>PdPIP1;2</i> Confers Drought and Salinity Tolerance to Yeast and Arabidopsis Genes aquaporins abiotic stress salinity date palm functional characterization |
author_facet |
Himanshu V. Patankar Ibtisam Al-Harrasi Rashid Al-Yahyai Mahmoud W. Yaish |
author_sort |
Himanshu V. Patankar |
title |
Functional Characterization of Date Palm Aquaporin Gene <i>PdPIP1;2</i> Confers Drought and Salinity Tolerance to Yeast and Arabidopsis |
title_short |
Functional Characterization of Date Palm Aquaporin Gene <i>PdPIP1;2</i> Confers Drought and Salinity Tolerance to Yeast and Arabidopsis |
title_full |
Functional Characterization of Date Palm Aquaporin Gene <i>PdPIP1;2</i> Confers Drought and Salinity Tolerance to Yeast and Arabidopsis |
title_fullStr |
Functional Characterization of Date Palm Aquaporin Gene <i>PdPIP1;2</i> Confers Drought and Salinity Tolerance to Yeast and Arabidopsis |
title_full_unstemmed |
Functional Characterization of Date Palm Aquaporin Gene <i>PdPIP1;2</i> Confers Drought and Salinity Tolerance to Yeast and Arabidopsis |
title_sort |
functional characterization of date palm aquaporin gene <i>pdpip1;2</i> confers drought and salinity tolerance to yeast and arabidopsis |
publisher |
MDPI AG |
series |
Genes |
issn |
2073-4425 |
publishDate |
2019-05-01 |
description |
Recent studies on salinity tolerance in date palm revealed the discovery of salt-responsive genes including <i>PdPIP1;2</i>, a highly conserved aquaporin gene in plants, which was functionally characterized in this study to investigate its precise role in drought and salinity tolerance. Immunoblot assay showed a high level of PIP1 protein accumulation only in the leaves of date palm plants when grown under drought, an observation which may imply the involvement of PIP1;2 in CO<sub>2</sub> uptake. Heterologous overexpression of <i>PdPIP1;2</i> in yeast (<i>Saccharomyces cerevisiae</i>) improved tolerance to salinity and oxidative stress. While, heterologous overexpression of <i>PdPIP1;2</i> in Arabidopsis had significantly (<i>p</i> < 0.05) increased biomass, chlorophyll content, and root length under drought and salinity. In addition, a significantly (<i>p</i> < 0.05) higher percentage of transgenic plants could be recovered by rewatering after drought stress, indicating the ability of the transgenic plants to maintain water and viability under drought. Transgenic plants under drought and salinity maintained significantly (<i>p</i> < 0.05) higher K<sup>+</sup>/Na<sup>+</sup> ratios than wild type (WT) plants, an observation which may represent an efficient tolerance mechanism controlled by the transgene. Collectively, this study provided an insight on the mechanism by which <i>PdPIP1;2</i> conferred tolerance to salt and drought stresses in date palm. |
topic |
aquaporins abiotic stress salinity date palm functional characterization |
url |
https://www.mdpi.com/2073-4425/10/5/390 |
work_keys_str_mv |
AT himanshuvpatankar functionalcharacterizationofdatepalmaquaporingeneipdpip12iconfersdroughtandsalinitytolerancetoyeastandarabidopsis AT ibtisamalharrasi functionalcharacterizationofdatepalmaquaporingeneipdpip12iconfersdroughtandsalinitytolerancetoyeastandarabidopsis AT rashidalyahyai functionalcharacterizationofdatepalmaquaporingeneipdpip12iconfersdroughtandsalinitytolerancetoyeastandarabidopsis AT mahmoudwyaish functionalcharacterizationofdatepalmaquaporingeneipdpip12iconfersdroughtandsalinitytolerancetoyeastandarabidopsis |
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