Identification and disruption of a plant Shaker-like outward channel involved in K+ release into the xylem sap

A study showed that the SKOR, a potassium positive ion (K+) channel from Arabidopsis, is the first member of the Shaker family in plants having outwardly rectifying properties and is expressed in root stelar tissues. A reverse genetic approach suggests that SKOR is involved in the K+ release into the xylem sap. It was also found that phytohormone abscisic acid strongly represses SKOR gene expression.