PR3 — Phaseolus vulgaris

Summary

PHAVU_009G116300, designated PvPR3 on French bean chromosome 9, encodes a protein with glycoside hydrolase family 19 domains, chitinase activity and chitin binding capacity. The gene is associated with cell wall macromolecule catabolic processes, chitin and polysaccharide breakdown, carbohydrate metabolism, and defence responses to fungi. It has been connected to jasmonic acid/ethylene-dependent systemic resistance and ethylene-mediated signalling, as well as ethylene sensitivity. PvPR3 is linked to vacuolar, secretory vesicle, protoplasmic and extracellular localisation. Associations with wilt symptom development, nematode resistance, salt tolerance, seed germination under salt stress, and pathogen resistance have been reported. Studies of related genes in other species link the family to disease tolerance, salt response, chlorophyll content, plant height, and root number.