PR5 — Solanum tuberosum

Summary

StPR5 (PGSC0003DMG400006201) on potato chromosome 1 encodes a zeamatin protein belonging to the osmotin/thaumatin-like superfamily, with annotated glucan endo-1,3-beta-D-glucosidase activity, IgE binding, mRNA binding, and protein binding. The gene is associated with late blight resistance in potato, as well as defence responses to bacteria, fungi, and viruses, systemic acquired resistance, cell death, and responses to abscisic acid, ethylene, UV-B, cadmium, and stress. It is linked to regulation of anthocyanin anabolism, DNA replication, and NO storage. The product localises to the apoplast, plant-type cell wall, vacuole, plasmodesma, secretory vesicle, membrane, and mitochondria. Additional associations include osmotic stress response, proline accumulation, disease resistance, salt and drought tolerance, insect resistance, and resistance to Verticillium dahliae and Pseudomonas syringae. Studies of related genes in other species link the family to pathogen resistance, induced systemic resistance, herbivore defence, and seed germination under salt stress.