PIP2 — Brassica oleracea var. botrytis

Summary

BoPIP2 (BOLND125_C03P024380.1_BOLND125_V1) on cauliflower chromosome 3 encodes an aquaporin family protein with water channel activity and phospholipase D activity. It is associated with water and hydrogen peroxide membrane transport, response to desiccation, brassinosteroid and salicylate responses, circadian regulation of gene expression, regulation of stomatal closure, and antiviral and bacterial responses. The gene is linked to numerous agronomic traits including photosynthetic rate, root hair length, flowering time, cadmium concentration, cellulose content, sodium uptake, and responses to phosphorus, ethylene, low temperature, and powdery and downy mildews. It has been connected to drought, salt, freezing and oxidative stress tolerance, disease resistance, root water uptake, and osmotic stress sensitivity. Studies of related genes in other species link the family to water transport, stomatal movement, root hydraulic conductivity, hydrogen peroxide transport, and pathogen resistance.