Article
Hypersensitivity of abscisic acid-induced cytosolic calcium increases in the Arabidopsis farnesyltransferase mutant era1-2.
The Plant cell - 1 Jul 2002
Allen Gethyn J, Murata Yoshiyuki, Chu Sarah P, Nafisi Majse, Schroeder Julian I
Abstract excerpt
Cytosolic calcium increases were analyzed in guard cells of the Arabidopsis farnesyltransferase deletion mutant era1-2 (enhanced response to abscisic acid). At low abscisic acid (ABA) concentrations (0.1 microM), increases of guard cell cytosolic calcium and stomatal closure were activated to a greater extent in the era1-2 mutant compared with the wild type. Patch clamping of era1-2 guard cells showed enhanced...
Topics
- Abscisic Acid
- Alkyl and Aryl Transferases
- Arabidopsis
- Biological Transport
- Calcium
- Calcium Channels
- Calcium Signaling
- Cytosol
- Epistasis, Genetic
- Farnesyltranstransferase
- Membrane Potentials
- Mutation
- Phosphoprotein Phosphatases