KC1 — Oryza sativa Japonica

Summary

OsKC1 (OS01G0718700) encodes a protein belonging to the KAT/AKT family, with outward rectifier potassium channel activity and ion transporter activity. It is associated with potassium homeostasis and transport, including regulation of K+ transport, potassium distribution, and potassium secretion into xylem. The gene has been linked to stress responses such as drought, salt, and osmotic stress tolerance, as well as reactive oxygen species production and response. It is associated with stomatal opening and closure, grain shape, yield, and seedling growth. Localization evidence places the product at the plasma membrane, pollen tube tip, cell plate, and vesicle. Studies of related genes in other species link the family to guard cell ion flux, seed germination, and cadmium tolerance.