ADC — Nicotiana attenuata

Summary

A4A49_05934 (ADC, SPE1) in Nicotiana attenuata encodes an arginine decarboxylase (EC 4.1.1.19) with protein homodimerization and binding activities, localizing to the cytosol and nucleus. This gene is associated with polyamine, nicotine, alkaloid, and ethylene metabolism, as well as arginine breakdown and putrescine, spermidine, and spermine biosynthesis. It is linked to flower and callus formation, organogenesis, chewing response, virus-induced PTGS, heterosis, leaf chlorosis, and photosynthetic rate. Associations also include root meristem size, iron deficiency tolerance, bacterial disease resistance, salt and cold tolerance, seed germination, plant height, flowering time, and wound and abiotic stress responses. Studies of related genes in other species link the ADC family to drought tolerance, freezing tolerance, polyamine content, root architecture, shoot meristem formation, and disease resistance.