Article
Sodium-driven potassium uptake by the plant potassium transporter HKT1 and mutations conferring salt tolerance.
Science (New York, N.Y.) - 8 Dec 1995
Rubio F, Gassmann W, Schroeder J I
Abstract excerpt
Sodium (Na+) at high millimolar concentrations in soils is toxic to most higher plants and severely reduces agricultural production worldwide. However, the molecular mechanisms for plant Na+ uptake remain unknown. Here, the wheat root high-affinity potassium (K+) uptake transporter HKT1 was shown to function as a high-affinity K(+)-Na+ cotransporter. High-affinity K+ uptake was activated by micromolar Na+...
Topics
- Animals
- Biological Transport
- Carrier Proteins
- Cation Transport Proteins
- Membrane Potentials
- Membrane Proteins
- Mutation
- Oocytes
- Patch-Clamp Techniques
- Plant Proteins
- Potassium