Ectopic Expression of Mulberry G-Proteins Alters Drought and Salt Stress Tolerance in Tobacco
Abstract
:1. Introduction
2. Results
2.1. Determination of Transgenic Tobacco Plants
2.2. Overexpression of MaGα Reduces Plant Tolerance to Drought and Salt Stresses
2.3. MaGβ Overexpression Increases Plant Tolerance to Salt Stress
2.4. The Overexpression of MaGγ1 Increases Plant Tolerance to Drought and Salt Stresses
2.5. The Overexpression of MaGγ2 Increases Plant Tolerance to Drought and Salt Stresses
3. Discussion
4. Materials and Methods
4.1. Plasmid Construction and Plant Transformation
4.2. Stress Tolerance Analysis of Transgenic Plants
4.3. Quantitative Real-Time PCR
4.4. Statistical Analyses
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Abbreviations
DAB | 3, 3-diaminobenzidine |
Gα | G-protein α subunit |
Gβ | G-protein β subunit |
Gγ | G-protein γ subunit |
G-proteins | heterotrimeric guanine-nucleotide-binding proteins |
MDA | malondialdehyde |
NBT | nitro-blue tetrazolium |
PEG | polyethylene glycol |
POD | peroxidase |
qRT-PCR | reverse transcription quantitative PCR |
ROS | reactive oxygen species |
WT | wild type |
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Gα | Gβ | Gγ | |
---|---|---|---|
Salt stress: | |||
A. thaliana | ↓ | ↑ | ↑ |
O. sativa | ↓ | — | ↑ |
Z. mays | ↓ | — | — |
M. alba | ↓ | ↑ | ↑ |
Drought: | |||
A. thaliana | — | ↑ | — |
O. sativa | ↓ | ↑ | — |
M. domestica | ↓ | — | — |
M. alba | ↓ | ↑ | ↑ |
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Liu, C.; Xu, Y.; Feng, Y.; Long, D.; Cao, B.; Xiang, Z.; Zhao, A. Ectopic Expression of Mulberry G-Proteins Alters Drought and Salt Stress Tolerance in Tobacco. Int. J. Mol. Sci. 2019, 20, 89. https://doi.org/10.3390/ijms20010089
Liu C, Xu Y, Feng Y, Long D, Cao B, Xiang Z, Zhao A. Ectopic Expression of Mulberry G-Proteins Alters Drought and Salt Stress Tolerance in Tobacco. International Journal of Molecular Sciences. 2019; 20(1):89. https://doi.org/10.3390/ijms20010089
Chicago/Turabian StyleLiu, Changying, Yazhen Xu, Yang Feng, Dingpei Long, Boning Cao, Zhonghuai Xiang, and Aichun Zhao. 2019. "Ectopic Expression of Mulberry G-Proteins Alters Drought and Salt Stress Tolerance in Tobacco" International Journal of Molecular Sciences 20, no. 1: 89. https://doi.org/10.3390/ijms20010089