MAN1 — Brachypodium distachyon

Summary

BdMAN1 (BRADI_2G45790V3) on chromosome 2 encodes a mannan endo-1,4-beta-mannosidase (EC 3.2.1.78) belonging to the glycoside hydrolase family 5. The gene is associated with mannan metabolism, polysaccharide breakdown, and plant-type cell wall loosening. It has been linked to response to cyanide, detoxification of cadmium ions, and fruit valve development and dehiscence. The protein localises to the apoplast, cell periphery, Golgi trans cisterna, and plasmalemma. Associations with iron accumulation, ferric-chelate reductase activity, cadmium tolerance and accumulation, secondary cell wall deposition, cell expansion and differentiation, and shoot and root apical meristem organisation have been reported. Studies of related genes in other species link the family to seed germination, salt stress tolerance, and accumulation of magnesium, manganese, copper, and zinc.