Regulation of SOS1, a plasma membrane Na + /H + exchanger in Arabidopsis thaliana , by SOS2 and SOS3
University of Arizona · Carnegie Institution for Science
Abstract
Maintaining low levels of sodium ions in the cell cytosol is critical for plant growth and development. Biochemical studies suggest that Na(+)/H(+) exchangers in the plasma membrane of plant cells contribute to cellular sodium homeostasis by transporting sodium ions out of the cell; however, these exchangers have not been identified at the molecular level. Genetic analysis has linked components of the salt overly sensitive pathway (SOS1-3) to salt tolerance in Arabidopsis thaliana. The predicted SOS1 protein sequence and comparisons of sodium ion accumulation in wild-type and sos1 plants suggest that SOS1 is involved directly in the transport of sodium ions across the plasma membrane. To demonstrate the…
Citation impact
- FWCI
- 30.52
- Percentile
- 100%
- References
- 36
Authors
5- QQQuan-Sheng QiuCorresponding
University of Arizona, Carnegie Institution for Science
- YGYan Guo
University of Arizona, Carnegie Institution for Science
- MAMargaret A. Dietrich
University of Arizona, Carnegie Institution for Science
- KSKaren S. Schumaker
University of Arizona, Carnegie Institution for Science
- JZJian‐Kang Zhu
University of Arizona, Carnegie Institution for Science
Topics & keywords
- Sodium–hydrogen antiporter
- Chemistry
- Sodium
- Membrane transport
- Cytosol
- Biochemistry
- Vesicle
- Ion transporter