PIP1 — Oryza sativa Japonica

Summary

OsPIP1 (OS07G0448400) on rice chromosome 7 encodes a protein with aquaporin domains (Aquaporin_transptr, MIP, Aquaporin-like) and is annotated with phospholipase D activity, peptide binding and receptor activity, and multiple kinase activities. The gene is associated with water use, seed, root, shoot and xylem phenotypes, and has been linked to traits including grain moisture content, drought sensitivity, water use efficiency, sodium uptake, nitrogen content, cadmium concentration, root volume, lateral root length, germination rate, days to heading, and responses to bacterial disease, downy mildew, ethylene and brassinosteroids. It is associated with pore formation, carbon dioxide transport, sucrose transport, hydrogen peroxide membrane transport, response to water, circadian regulation of gene expression, endocytosis, and detection of bacteria. The protein localises to the plasma membrane, cell wall, vacuole, Golgi, chloroplast envelope and microtubule cytoskeleton. Studies of related genes in other species link the family to root hydraulic conductivity, stomatal closure, mesophyll conductance, and resistance to Pseudomonas syringae.