PIP — Nicotiana attenuata

Summary

A4A49_57150 (PIP, PIP1) in coyote tobacco (Nicotiana attenuata) encodes an aquaporin-like protein with channel and water channel activity, belonging to the MIP family. This gene is associated with water transport, gas transport (including oxygen), membrane transport, and processes such as pyruvate metabolism, TCA cycle, alkaloid and polyamine anabolism, detoxification, primary root and root hair cell development, and protein heterotetramerization. It localizes to the membrane, plasmalemma, ER, and cytosol. PIP1 is linked to traits including carbon isotope discrimination, turgor pressure, photosynthetic rate, stomatal resistance, and phenotypes such as water stress response, salt tolerance, and plant growth. Studies of related genes in other species connect the PIP family to drought tolerance, leaf water potential, water use efficiency, net photosynthetic rate, root length, and defense and viral resistance.