PIP1 — Brachypodium distachyon

Summary

BdPIP1 (BRADI_3G49360V3) on chromosome 3 of Brachypodium distachyon encodes an aquaporin family protein with a major intrinsic protein (MIP) domain, and is annotated with phospholipase D activity, peptide binding and receptor activity, and multiple kinase activities. The gene is associated with carbon dioxide transport, hydrogen peroxide membrane transport, phosphatidic acid metabolism, circadian regulation of gene expression, and responses to desiccation, low humidity, and aluminum. It has been linked to traits including photosynthetic rate, stomatal opening and closure, root hair and lateral root length, germination rate, flowering time, vegetative growth, and responses to drought, cold, bacterial disease, powdery mildew, and cadmium. Localisation evidence connects the protein to the plasma membrane, plant-type cell wall, vacuole, chloroplast envelope, and plasmodesmata. Studies of related genes in other species link the family to water transport, drought and salt tolerance, and grain yield.