PIP2 — Nicotiana attenuata

Summary

A4A49_52171, designated NaPIP2 in coyote tobacco (Nicotiana attenuata, scaffold00289), encodes a member of the PIP2/PIPL1 protein family. The gene is associated with pore formation, water transport, stomatal closure, and exocytosis, as well as with nucleotide-sugar, inositol phosphate, riboflavin, phosphate, and sulfur metabolism, oxidative phosphorylation, and regulation of developmental processes including anther dehiscence, root development, and sexual reproduction. It is linked to hypersensitivity and defense responses to other organisms. The product localizes to the apoplast and mitochondria. NaPIP2 is associated with ethylene sensitivity, photosynthetic rate, drought tolerance, salt tolerance, and root hydraulic conductivity. Studies of related genes in other species link the family to traits such as leaf water potential, transpiration rate, stomatal resistance, and root morphology.