HA1 — Brassica oleracea var. botrytis

Summary

BoHA1 (HA1) on cauliflower chromosome 9 encodes a P-type ATPase IIIA family protein with proton-transporting ATPase activity, also annotated for guanylyl cyclase, peptide receptor, voltage-sensitive potassium channel, SUMO transferase, and protein kinase activities. It is associated with proton export across the plasma membrane, cell pH regulation, very-long-chain fatty acid metabolism, defense responses to bacteria and viruses, negative regulation of the hypersensitive response, and sumoylation. The gene is linked to traits including drought tolerance, water stress response, photosynthetic rate, stomatal closure time, leaf senescence, root morphology, shoot growth angle, and responses to high and low temperature, oxidative stress, and abscisic acid. Related genes in other species connect the family to salt tolerance, aluminum resistance, stomatal ABA responsiveness, and pathogen defense.