PR5 — Brachypodium distachyon

Summary

BdPR5 (BRADI_1G30117V3) on chromosome 1 of Brachypodium distachyon encodes a thaumatin-like protein belonging to the osmotin/thaumatin-like superfamily, with glucan endo-1,3-beta-D-glucosidase activity, IgE binding and mRNA binding. The gene is associated with defence responses to fungi, bacteria and viruses, as well as responses to UV-B, ethylene, abscisic acid and cadmium. It is linked to cell death, regulation of anthocyanin anabolism, and killing of cells of other organisms. The protein localises to the apoplast, plant-type cell wall, plant-type vacuole, plasmodesmata, secretory vesicles, mitochondria and membrane. Associations include systemic acquired resistance, disease resistance to Pseudomonas syringae and Verticillium dahliae, insect resistance, salt tolerance and UV-B stress response. Related genes in other species link the family to induced systemic resistance, herbivore defence, nematode resistance, seed germination under salt stress, grain yield and nitrogen deficiency tolerance.