TPS — Nicotiana attenuata

Summary

A4A49_36777 (TPS1) in Nicotiana attenuata on chromosome 2 encodes a protein with transglucosylase, trehalose-phosphatase, and transglycosidase activities (EC 2.4.1.15), belonging to the Trehalose_OtsA, Glyco_trans_20, Trehalose_PPase, and HAD-like_sf domain families. The gene is associated with trehalose biosynthesis, terpenoid anabolism, sugar-mediated signalling, cell wall biogenesis, chlorophyll fluorescence, cell death, cell division, root development, embryo development, and vegetative growth. It is linked to drought tolerance, sucrose content, flowering, cold tolerance, thermotolerance, stomatal aperture, shoot branching, starch accumulation, systemic immunity, and ABA sensitivity during seed germination. Studies of related genes in other species connect the family to trehalose-6-phosphate synthase activity, embryo development, floral transition, stress tolerance, and glucose sensitivity.