BG2 — Brassica oleracea var. botrytis

Summary

BoBG2, located on chromosome 8 of cauliflower (Brassica oleracea var. botrytis), encodes a glycosyl hydrolase family 17 protein with lichenase, cellulase, glucan exo-1,3-beta-glucosidase, and glucan endo-1,3-beta-D-glucosidase activities. It is associated with carbohydrate metabolism, brassinosteroid-mediated signalling, and response to cold. The protein localises to the secretory vesicle, vacuole, plant-type cell wall, apoplast, Golgi complex, mitochondria, and cytosol. BoBG2 is associated with nitrate uptake, leaf composition, seedling growth and development, organ identity, and numerous stress and defence responses, including aphid susceptibility, drought and salt tolerance, dehydration resistance, osmotic stress response, disease resistance, systemic acquired resistance, callose deposition and biosynthesis, and cellulose biosynthesis. Studies of related genes in other species link the family to induced systemic resistance, pathogen and virus resistance, cell wall modification, organ size, calcium signalling, and protein-protein interactions.