KC1 — Cucumis sativus

Summary

CSA_5G409690 (KC1, also known as SKOR) on cucumber chromosome 5 encodes a protein with domains including KAT/AKT, K_chnl_volt-dep_EAG/ELK/ERG, and Ion_trans_dom, and is annotated with outward rectifier potassium channel activity, potassium channel activity, and ion transporter activity. The gene is associated with regulation of membrane potential, potassium ion homeostasis, upregulation of stomatal opening, response to basic pH, and hypotonic salinity response. It has been linked to numerous agronomically relevant traits including yield, water use efficiency, transpiration rate, photosynthetic rate, leaf necrosis tolerance, root hair length, lateral root length, days to flowering, and responses to water stress, aluminum, cadmium, and powdery mildew. The gene product localizes to the apical plasma membrane, pollen tube tip, and vesicle compartments. Studies of related genes in other species connect the family to guard cell ion flux, stomatal closure, seed germination, and responses to salt and heavy metal stress.