PIP2 — Brassica oleracea var. botrytis

Summary

BoPIP2 (BOLND125_C06P023270.1_BOLND125_V1) on cauliflower chromosome 6 encodes an aquaporin family protein with water channel activity, phospholipase D activity, and protein kinase activity. It is associated with phosphatidic acid metabolism, hydrogen peroxide membrane transport, response to desiccation, brassinosteroid response, circadian regulation of gene expression, and regulation of stomatal closure. The gene is linked to photosynthetic rate, drought tolerance, salt tolerance, freezing tolerance, disease resistance, downy mildew response, root hair length, flowering time, and vegetative growth. It localizes to the plasma membrane, plasmodesmata, endoplasmic reticulum, Golgi, vacuole, and extracellular regions. Studies of related genes in other species link the aquaporin family to water transport, stomatal movement, root hydraulic conductivity, hydrogen peroxide transport, and pathogen resistance.