PIP1 — Sorghum bicolor

Summary

SORBI_3004G351200, also known as SbPIP1, encodes an aquaporin-like protein with channel activity and multiple additional molecular functions including phospholipase D activity, peptide binding, and kinase activity. This sorghum gene on chromosome 4 is associated with cellular water homeostasis, carbon dioxide transport, and hydrogen peroxide membrane transport. It is linked to numerous traits including drought stress response, cold stress response, photosynthetic rate, stomatal resistance and opening, root hair length, lateral root length, germination rate, flowering time, and disease tolerance. Additional associations include responses to aluminum, low humidity, bacterial disease, and phosphorus, as well as traits related to sodium uptake, cadmium concentration, and proline content. The gene is also associated with circadian regulation of gene expression and guard cell fate commitment.