EP3 — Brachypodium distachyon

Summary

BdEP3 (BRADI_3G32340V3) on chromosome 3 of Brachypodium distachyon encodes a protein with a Glyco_hydro_19 domain and lysozyme-like domain, possessing chitinase activity (EC 3.2.1.14) and chitin-binding activity. The gene is associated with chitin breakdown, polysaccharide breakdown, cell wall macromolecule catabolic process, and responses to fungi, bacteria, oomycetes, insects, and viruses. It is linked to systemic acquired resistance, jasmonic acid/ethylene-dependent systemic resistance, leaf senescence, root development, somatic embryogenesis, and cellular response to hypoxia and response to silver ion. The product localizes to the apoplast, plant-type cell wall, vacuole, secretory vesicle, and extracellular space. Associations with ethylene sensitivity, pathogen resistance, salt tolerance, seed germination under salt stress, and nematode resistance have been noted. Studies of related genes in other species link the family to disease resistance, growth, and grain traits.