PIP1 — Sorghum bicolor

Summary

SORBI_3006G176700 (SbPIP1) encodes a protein with aquaporin-like and MIP domains, and is annotated with channel activity and phospholipase D activity. This sorghum gene on chromosome 6 is associated with cellular water homeostasis, carbon dioxide transport, hydrogen peroxide membrane transport, and phosphatidic acid metabolism. It is linked to numerous traits including drought stress response, cold stress response, photosynthetic rate, stomatal opening, stomatal resistance, root and seed growth and development, flowering time, germination rate, and disease tolerance. Associations also include response to aluminum, response to low humidity, detection of bacteria, and circadian regulation of gene expression. The protein localizes to the plasma membrane, plant-type cell wall, plant-type vacuole, chloroplast envelope, and other cellular compartments. Studies of related genes in other species link the family to water transport, drought tolerance, and stress responses.