TPS — Nicotiana attenuata

Summary

A4A49_33105 (TPS1) in coyote tobacco (Nicotiana attenuata) encodes a protein with trehalose-phosphatase and transglucosylase activities (EC 2.4.1.15). The gene is associated with trehalose biosynthesis and metabolism, terpenoid anabolism, sugar-mediated signalling, and chlorophyll fluorescence. It is linked to developmental vegetative growth, root development, cell division, cell death, and response to long-day flowering. Associations include drought tolerance, sucrose content, cold tolerance, thermotolerance, stomatal aperture, shoot branching, starch accumulation, and systemic immunity. The gene product localises to the cytosol, cytoplasm, and nucleus. Studies of related genes in other species link the family to trehalose-6-phosphate synthase activity, embryo development, floral transition, ABA sensitivity, and stress tolerance.