Article
Sensitivity to abscisic acid of guard-cell K+ channels is suppressed by abi1-1, a mutant Arabidopsis gene encoding a putative protein phosphatase.
Proceedings of the National Academy of Sciences of the United States of America - 10 Oct 1995
Armstrong F, Leung J, Grabov A, Brearley J, Giraudat J, Blatt M R
Abstract excerpt
Abscisic acid (ABA) modulates the activities of three major classes of ion channels--inward- and outward-rectifying K+ channels (IK,in and IK,out, respectively) and anion channels--at the guard-cell plasma membrane to achieve a net efflux of osmotica and stomatal closure. Disruption of ABA sensit...
Topics
- Abscisic Acid
- Arabidopsis
- Cell Membrane
- Genes, Plant
- Hydrogen-Ion Concentration
- Mutation
- Patch-Clamp Techniques
- Phosphoprotein Phosphatases
- Potassium Channels
- Transformation, Genetic