PR5 — Brachypodium distachyon

Summary

BdPR5 (BRADI_3G07960V3) on Brachypodium distachyon chromosome 3 encodes a thaumatin-like protein, a member of the osmotin/thaumatin-like superfamily, with mRNA binding activity. The gene is associated with defence responses to fungi, bacteria and viruses, as well as responses to UV-B, ethylene, cadmium and cell death. It is linked to regulation of anthocyanin anabolism and killing of cells of other organisms. The protein localises to the apoplast, plant-type cell wall, vacuole, plasmodesmata, secretory vesicles, mitochondria and membrane. Associations with disease resistance, systemic acquired resistance, salicylic acid defense response, insect resistance, salt tolerance and resistance to Verticillium dahliae and Pseudomonas syringae have been reported. Studies of related genes in other species connect the family to grain yield, nitrogen sensitivity, drought tolerance, seed size, plant height, root morphology and heterosis.