PR5 — Solanum lycopersicum

Summary

SlPR5 (SOLYC12G056370.1) encodes a thaumatin-like protein belonging to the osmotin/thaumatin-like superfamily, with beta-glucanase, endo-1,3(4)-beta-glucanase, glycosidase, and hydrolase activity. In tomato, this gene is associated with antifungal innate immune response, induced systemic resistance, and the regulation of proline, lycopene, salicylic acid, auxin, ethylene, and chlorophyll anabolism. It is linked to ergosterol anabolism, spore germination, fermentation, photoperiodism, and the metabolic burst. The protein localizes to the vacuole, apoplast, and extracellular space. SlPR5 has been connected to agronomically relevant traits including fruit shape, sugar content, protein content, seed size, stomatal opening, acid sensitivity, abscisic acid sensitivity, and salt tolerance. Studies of related genes in other species link the family to endo-1,3(4)-beta-glucanase activity.