PIP2 — Brassica napus

Summary

BnPIP2 (DARMORV10_A09P46420.1) on chromosome A09 of oilseed rape encodes a member of the aquaporin family, possessing water channel activity and phospholipase D activity, and is associated with protein and mRNA binding. The gene is associated with leaf water potential, stomatal closure, root water uptake, and transpiration. It is linked to responses to abiotic stresses such as drought, salt, freezing, and hypoxia, as well as to brassinosteroid and abscisic acid signaling. Associations with disease responses include downy mildew, powdery mildew, and bacterial resistance. The encoded protein localizes to the plasma membrane, plasmodesmata, and vacuole, and is linked to cell growth, root hair length, flowering time, and heterosis. Studies of related genes in other species link the family to dehydration tolerance, hydrogen peroxide transport, and stomatal immune response.