Convergence of the abscisic acid, CO2, and extracellular calcium signal transduction pathways in stomatal guard cells.

摘要

Guard cells from Arabidopsis thaliana plants carrying the abscisic acid-insensitive mutations abi1 and abi2 failed to respond to CO2 and extracellular calcium, demonstrating that the signal transduction pathways for all three stimuli converge on, orclose to, the ABI1 and ABI2 gene products.