NHX1 — Cucumis melo

Summary

MELO3C021364.2, also known as CmNHX1, encodes a sodium/hydrogen exchanger belonging to the CPA1 family, with lithium:proton and potassium:proton antiporter activity. In melon, this gene is associated with vacuolar membrane transport, sodium and potassium ion homeostasis, cell pH regulation, and responses to superoxide. It has been linked to yield traits, photosynthetic rate, stomatal resistance, plant height, root development, and abiotic stress responses including high temperature stress response. Associations also include auxin content, abscisic acid sensitivity, and disease tolerance. The gene product localizes to the tonoplast, vacuole, endosome, and chloroplast envelope. Studies of related genes in other species connect this gene family to ion homeostasis, vacuolar pH regulation, stomatal function, and stress tolerance.