PIP1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.2HG0133340 (HvPIP1) on barley chromosome 2H encodes a protein with aquaporin-like and MIP domains, and is annotated with channel activity and phospholipase D activity. The gene is associated with carbon dioxide transport, hydrogen peroxide membrane transport, phosphatidic acid metabolism, and regulation of phosphorylation. It has been linked to guard cell fate commitment, circadian regulation of gene expression, and responses to desiccation, low humidity, and aluminum. HvPIP1 is also associated with leaf water potential, photosynthetic rate, stomatal resistance and opening, root hair length, lateral root length, shoot fresh weight, germination rate, flowering time, and responses to drought, cold, and bacterial and fungal diseases including powdery mildew. Related genes in other species link the family to water transport, stomatal closure, and drought stress tolerance.