PIP1 — Brachypodium distachyon

Summary

Brachypodium distachyon gene BdPIP1 (BRADI_1G00552V3) on chromosome 1 encodes a protein with aquaporin and MIP domains, 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, aluminum, and bacteria. It is linked to traits including photosynthetic rate, stomatal opening and closure, root hair length, lateral root length, germination rate, flowering time, vegetative growth, and responses to drought, cold, cadmium, and powdery mildew. The protein localizes to the plasma membrane, cell wall, vacuole, chloroplast envelope, and plasmodesmata. Studies of related genes in other species connect the family to water transport, drought tolerance, root water uptake, stomatal closure, and grain moisture content.