PR3 — Phaseolus vulgaris

Summary

PHAVU_003G268500, symbol PR3 and also known as PvPR3, encodes a protein with chitinase activity and chitin binding, belonging to the glycoside hydrolase 19 family. It is associated with cell wall macromolecule catabolic processes, chitin and polysaccharide breakdown, and carbohydrate metabolism. The gene is linked to defence responses against fungi, hypersensitive response programmed cell death, and jasmonic acid/ethylene-dependent systemic resistance. PR3 has been connected to ethylene sensitivity, pathogen and nematode resistance, salt tolerance, and seed germination under salt stress. The encoded protein localises to the protoplasm, secretory vesicles, vacuole, and extracellular space. Studies of related genes in other species link the family to traits including hydrogen peroxide content, root number, plant height, chlorophyll content, and disease tolerance.