PIP1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.5HG0500800 (HvPIP1) on barley chromosome 5H encodes an aquaporin family protein with MIP and aquaporin-like domains. It is annotated with phospholipase D activity, peptide binding and receptor activity, kinase activity, and numerous other molecular functions. 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 has been linked to traits including sodium uptake, leaf water potential, stomatal resistance and opening, photosynthetic rate, root hair length, lateral root length, shoot fresh weight, germination rate, flowering time, and responses to cadmium, phosphorus, powdery mildew, and downy mildew. Studies of related genes in other species connect the family to water transport, drought and salt stress tolerance, stomatal closure, and grain yield.