SR1 — Nicotiana attenuata

Summary

A4A49_41688 (SR1, NaSR1) on chromosome 6 of coyote tobacco (Nicotiana attenuata) encodes a protein with a NAF/FISL domain and a serine/threonine kinase domain, and is annotated with nucleoside diphosphate kinase activity, protein kinase inhibitor activity, and proton-transporting ATPase activity. The gene is associated with responses to pH, trehalose, and reactive oxygen species, as well as regulation of potassium transport, abscisic acid biosynthesis, and systemic acquired resistance. It is linked to traits including drought sensitivity, alkali soil sensitivity, bacterial blight disease resistance, submergence tolerance, and mineral and ion transport. Localisation evidence connects the product to the tonoplast, thylakoid, and stress granules. Studies of related genes in other species link the family to defence responses, abiotic stress tolerance, and pathogen resistance.