PR3 — Beta vulgaris subsp. vulgaris

Summary

BvPR3 (BVRB_004860) on sugar beet chromosome 0128.scaffold00399 encodes a protein with a Glyco_hydro_19_cat domain and lysozyme-like superfamily fold, possessing chitinase activity (EC 3.2.1.14) and chitin binding. The gene is associated with defence response to fungi, chitin breakdown, polysaccharide breakdown, cell wall macromolecule catabolic process, and jasmonic acid/ethene-dependent systemic resistance, ethene mediated signaling pathway. It localises to secretory vesicle, vacuole, plant-type vacuole, and extracellular. Associations include ethylene sensitivity, photosynthetic rate, root length, and phenotypes such as pathogen resistance, disease resistance, salt tolerance, seed germination under salt stress, nematode resistance, and mycorrhization. Studies of related genes in other species link the family to pathogen defense, virus resistance, and disease resistance to Botrytis cinerea and bacterial wilt resistance.