AQP1 — Brassica oleracea var. botrytis

Summary

BoAQP1 (BOLND125_C01P056280.1_BOLND125_V1) on cauliflower chromosome 1 encodes an aquaporin family protein with water, ammonium, methylammonium and urea transmembrane transporter activity, as well as heme and identical protein binding. The gene is associated with water transport, vacuole organization, polar cell growth, osmotic and salinity responses, leaf development, and response to abscisic acid. It localizes to the tonoplast, central vacuole, protein storage vacuole, Golgi, chloroplast envelope, plasmodesmata and plant-type cell wall. Associations include drought tolerance, salt tolerance, seed germination and development, oleic acid content, triacylglycerol content, thermotolerance, lateral root emergence, root water transport, vacuolar ammonium compartmentation, and porphyrin scavenging. Studies of related genes in other species link the family to urea and ammonium transport, ABA sensitivity, drought response, seed oil content and lipid droplet accumulation.