PIP1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0667130, symbol PIP1 (HvPIP1), on barley chromosome 7H encodes an aquaporin-like protein with water channel activity and general channel activity. It is associated with water transport, protein homotetramerization and heterotetramerization, regulation of phosphorylation, syngamy, leaf development, and homeostasis. The gene has been connected to responses to salt, cold, defense, osmotic stress, ABA signaling, thirst, and NO storage. It localizes to the membrane and plasmalemma and is linked to leaf water potential, shoot fresh weight, transpiration rate, and stomatal resistance. Studies of related genes in other species link the family to water and solute transport under abiotic stress.