PR5 — Solanum tuberosum

Summary

StPR5 (PGSC0003DMG400003041) on potato chromosome 8 encodes a protein of the osmotin/thaumatin-like superfamily, with beta-glucanase and endo-1,3(4)-beta-glucanase activity, and is associated with mRNA and protein binding. In potato, StPR5 is associated with late blight resistance, antifungal innate immune responses, systemic acquired resistance, and defence against bacteria, fungi, and viruses. It is also associated with responses to jasmonic acid, ethylene, cadmium, UV-B, and osmotic stress, as well as regulation of anthocyanin anabolism, cell death, and cell division. The protein localises to the apoplast, vacuole, cell wall, plasmodesmata, and secretory vesicles. Associations with drought and salt tolerance, proline accumulation, and resistance to Verticillium dahliae and Pseudomonas syringae have been reported. Studies of related genes in other species link the family to pathogen resistance, induced systemic resistance, and seed germination under salt stress.