PR5 — Capsicum annuum

Summary

CaPR5 (T459_32118) from pepper (Capsicum annuum) encodes a thaumatin-like protein with glucan endo-1,3-beta-D-glucosidase activity, belonging to the osmotin/thaumatin-like superfamily. The gene is associated with immune response, systemic acquired resistance, hypersensitivity, cell death, and defense responses to bacteria and viruses. It has been connected to responses to salicylate, ethylene, UV-B, cadmium, and arachidonate, as well as regulation of anthocyanin metabolism and virus-induced post-transcriptional gene silencing. The protein localizes to the apoplast, plant-type cell wall, vacuole, plasmodesma, secretory vesicles, and membrane. Associations with agronomic traits include plant height, leaf area index, stem diameter, and chlorophyll content. The gene is also linked to drought and salt tolerance, osmotic stress response, proline accumulation, and resistance to Verticillium dahliae and Pseudomonas syringae.