HA1 — Cucumis sativus

Summary

CsHA1 (CSA_1G008520) on cucumber chromosome 1 encodes a P-type ATPase with cation-transporting ATPase activity, proton-transporting ATPase activity, and additional annotated molecular functions including guanylyl cyclase, phosphatase, and SUMO transferase activities. The gene is associated with proton export across the plasma membrane, vacuolar acidification, cell pH regulation, nitrate import, and very-long-chain fatty acid metabolism. It is linked to traits including alkali soil sensitivity, manganese sensitivity, iron content, root volume, plant dry weight, water stress response, photosynthetic rate, bacterial disease response, brassinosteroid and auxin sensitivity, cell elongation, and high temperature stress response. Localization evidence connects the product to the plasma membrane, tonoplast, ER membrane, and plant-type vacuole. Studies of related genes in other species link the broader P-type ATPase family to root hair development, stomatal movement, pathogen defense, drought response, salt resistance, and pollen tube growth.