Isolation and identification of the outward potassium ion channel genes from Vicia faba guard cell

Potassium ion channels play a vital role in transporting K+ across the cell membrane of higher plants. The activities of potassium ion channels are regulated by endogenous and environmental factors. Previous experiments have already proven that potassium ion channels are components in the ABA signaling pathway. In this study, we have been trying to identify, clone, and characterize the outward K+ channel from Vicia faba guard cell in order to investigate the ABA signaling transduction pathway, and finally to utilize that information to isolate the ABA receptor. (Abstract shortened by UMI.)...