EP3 — Oryza sativa Japonica

Summary

Os02g0605900 (EP3, also known as Cht6) encodes a chitinase with chitinase activity (EC 3.2.1.14), chitin binding and protein binding functions, belonging to the glycosyl hydrolase 19 family. In rice, this gene is associated with chitin and polysaccharide breakdown, cell wall macromolecule catabolic processes, amino sugar metabolism, wax metabolism, diterpenoid metabolism, and jasmonic acid/ethylene-dependent systemic resistance. It is linked to the apoplast, plant-type cell wall, vacuole, secretory vesicle, and extracellular regions. Associations with agronomic traits include grain weight, grain length and width, grain yield, seed size and shape, seedling vigor, plant height, brittle culm, cellulose content, chlorophyll content, heat tolerance, ethylene sensitivity, germination rate, salt tolerance, and pathogen resistance. Studies of related genes in other species link the family to pollen tube growth and disease resistance to Botrytis cinerea.