PR5 — Oryza sativa Indica Group

Summary

BGIOSGA015623 (PR5, also known as TOND1) on indica rice chromosome 4 encodes a thaumatin-like protein with glucan endo-1,3-beta-D-glucosidase activity, mRNA binding, and IgE binding. The protein localises to the apoplast, plant-type cell wall, secretory vesicle, vacuole, plasmodesma, membrane, and mitochondria. This gene is associated with grain yield, nitrogen deficiency tolerance, and breeding traits, as well as defence responses to fungi, bacteria, viruses, and UV-B. It is linked to regulation of anthocyanin and phenylpropanoid anabolism, the TCA cycle, response to cadmium, abscisic acid, and ethylene, and signal transduction. Associations also include systemic acquired resistance, disease resistance to Pseudomonas syringae, insect resistance, salt tolerance, and resistance to Verticillium dahliae. Studies of related genes in other species connect the family to induced systemic resistance, pathogen resistance, herbivore defence, seed germination under salt stress, and cell wall integrity.