NHX1 — Triticum aestivum

Summary

TRAESCS4D02G147600 (symbol NHX1, also known as TaNHX2-4D) on wheat chromosome 4D encodes a sodium:hydrogen exchanger with potassium:proton antiporter activity, belonging to the NaH_exchanger and CPA1 cation/H+ exchanger families. This vacuolar membrane protein is associated with drought tolerance in wheat and has been linked to salinity tolerance, grain yield, leaf chlorophyll content, net photosynthetic rate, proline content, stomatal resistance, and high temperature stress response. It is connected to biological processes including vacuolar membrane transport, sodium import, potassium ion transport, regulation of stomatal closure, C4 photosynthesis, melatonin anabolism, and cell pH regulation. Studies of related genes in other species link the family to salt stress tolerance, potassium homeostasis, vacuolar pH regulation, and cell expansion.