PIP1 — Zea mays

Summary

ZmPIP1 (ZM00001EB186900) on maize chromosome 4 encodes plasma membrane intrinsic proteins PIP1-3 and PIP1-4, aquaporins with channel activity and phospholipase D activity. The gene is associated with vascular transport, carbon dioxide transport, urea transport, nitrate import, C4 photosynthesis, and hydrogen peroxide membrane transport. It localizes to the plasma membrane, plant-type cell wall, chloroplast envelope, and plant-type vacuole. ZmPIP1 is associated with drought stress response, cold stress response, leaf water potential, turgor pressure, root moisture content, leaf relative water content, aluminum tolerance, salt response, bacterial and downy mildew disease responses, Fusarium graminearum resistance, stomatal immunity, leaf hydraulic conductance, photosynthesis, seed germination under cold stress, and seedling growth. Related genes in other species are linked to root water uptake, stomatal closure, drought tolerance, and yield.