PIP1 — Brachypodium distachyon

Summary

BRADI_4G36601V3 (BdPIP1) on chromosome 4 encodes a protein with aquaporin-like and MIP domains, and is annotated with channel activity, phospholipase D activity, peptide receptor activity, and protein kinase activity. It 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. The gene is linked to guard cell differentiation and fate commitment, plasmodesma-mediated transport, and viral spread. BdPIP1 has been connected to numerous agronomic traits including drought stress tolerance, cold stress response, photosynthetic rate, stomatal opening and resistance, root hair length, lateral root length, germination rate, flowering time, seed growth, and disease tolerance. Studies of related genes in other species link the family to water transport, root water uptake, stomatal closure, arsenic tolerance, and grain moisture content.