PIP — Capsicum annuum

Summary

T459_30426 (PIP, PIP1) on pepper chromosome 12 encodes aquaporin PIP1-2, a water-channel protein with channel and water-channel activity. It is associated with water transport, protein heterotetramerization and homotetramerization, root and root-hair development, chlorophyll and fatty acid metabolism, and responses to stress, salt, cold, and ABA signaling. The gene is linked to drought tolerance, water stress response, photosynthetic rate, stomatal resistance, and plant growth and development traits. It localizes to the membrane, plasmalemma, ER, and cytosol. Studies of related genes in other species connect the PIP1 family to leaf water potential, relative water content, water use efficiency, net photosynthetic rate, transpiration rate, chlorophyll content, root length, plant height, fruit size, lycopene content, and salt tolerance.