PR5 — Brachypodium distachyon

Summary

BdPR5 (BRADI_3G42380V3) on chromosome 3 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. This 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, secretory vesicle, plant-type vacuole, plasmodesma, mitochondria, and membrane. BdPR5 is associated with systemic acquired resistance, disease resistance to Pseudomonas syringae and Verticillium dahliae, insect resistance, salt tolerance, and UV-B stress response. Studies of related genes in other species link the family to grain yield, drought tolerance, seed size, and nitrogen sensitivity.