NHX1 — Brassica oleracea

Summary

BoNHX1 (BOLC102_C09P005570.1) on cabbage chromosome 9 encodes a sodium/hydrogen exchanger belonging to the NaH_exchanger and CPA1 cation/H+ exchanger families, with potassium:proton antiporter, sodium transporter and protein binding activities. The product localises to the vacuolar membrane, plastid and plasmalemma, and is associated with sodium and potassium ion transport, vacuolar membrane transport, cell pH regulation, photoprotection, glucosinolate anabolism, regulation of stomatal closure, chlorophyll fluorescence, leaf development, and salinity response. It is linked to photosynthetic rate, chlorophyll content, salt tolerance, hypocotyl elongation, plant growth, cell expansion, flower development, vacuolar pH, potassium homeostasis, root growth, stem internode length, auxin homeostasis, nitrogen assimilation, fiber yield, stomatal regulation, gravitropism, and apical dominance. Related genes in other species are associated with salt, heat and cold tolerance, ion homeostasis, biomass production, seed germination, disease resistance, and numerous leaf, root and stomatal traits.