NHX1 — Beta vulgaris subsp. vulgaris

Summary

BvNHX1 (BVRB_4G089680) on sugar beet chromosome 4 encodes a sodium/hydrogen exchanger belonging to the NaH_exchanger and cation/H_exchanger_CPA1 families, with lithium:proton antiporter, potassium:proton antiporter and sodium transporter activities. The gene is associated with vacuolar membrane transport, sodium import, lithium export, potassium ion homeostasis, cell pH regulation, sucrose anabolism, nitric oxide anabolism, and response to superoxide. It localises to the tonoplast, vacuolar membrane, endosome, chloroplast envelope and plastid. BvNHX1 is linked to yield, photosynthetic rate, stomatal resistance, plant height, root development, seedling growth, abiotic stress response, high temperature stress, disease tolerance, and sensitivity to abscisic acid, jasmonic acid and UV-B light. Associations also include sodium uptake, iron concentration, phosphorus uptake, auxin content, meristem identity, cell cycle traits, and root oxidative activity.