PIP1 — Oryza sativa Japonica

Summary

OsPIP1 (OS07G0448200) on rice chromosome 7 encodes a member of the aquaporin family, characterized by MIP and aquaporin-like domains, and is annotated with phospholipase D activity, peptide binding, and kinase activity. The gene is associated with water use, seed, root, and shoot phenotypes, as well as carbon dioxide transport, hydrogen peroxide membrane transport, sucrose transport, and response to water. It has been linked to traits including drought sensitivity, water use efficiency, grain moisture content, sodium uptake, nitrogen content, cadmium concentration, root volume, root hair length, lateral root length, days to heading, germination rate, and bacterial disease response. The protein localizes to the plasma membrane region, plant-type cell wall, and vacuole. Studies of related genes in other species link the family to dehydration stress tolerance, root hydraulic conductivity, and stomatal immune response.