PR5 — Oryza sativa Indica Group

Summary

BGIOSGA012219 (PR5, also known as OiPR5, TOND1, and OSML) on chromosome 3 of Indica rice encodes a thaumatin-like protein with glucan endo-1,3-beta-D-glucosidase activity, IgE binding, and mRNA binding. It is associated with grain yield, nitrogen deficiency tolerance, and breeding traits, as well as defense responses to fungi, bacteria, viruses, and UV-B. The protein localizes to the apoplast, plant-type cell wall, vacuole, secretory vesicle, plasmodesma, and mitochondria. It is linked to regulation of anthocyanin and phenylpropanoid anabolism, the TCA cycle, response to cadmium, ethylene, and abscisic acid, and signal transduction. Related genes in other species are associated with induced systemic resistance, pathogen resistance, herbivore defense, and seed germination under salt stress.