KT1 — Oryza sativa Japonica

Summary

OS01G0930400 (KT1/HAK5) in rice encodes a potassium transporter with potassium:sodium symporter activity, belonging to the K+ transporter family. It is associated with potassium ion import across the plasma membrane, regulation of stomatal opening and closure, auxin transport, cell tip growth, and responses to salt and reactive oxygen species. The gene has been linked to seed setting rate, tiller number, root hair and lateral root development, xylem architecture, and fertility. It is also connected to traits including grain yield, biomass, chlorophyll content, water use efficiency, transpiration rate, and low temperature stress response. Studies of related genes in other species link the family to salinity tolerance, potassium deficiency response, gravitropism, and ammonium transport.