PR1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.5HG0433770 (HvPR1) on barley chromosome 5H encodes a protein containing a CAP domain, a V5 allergen-like domain, and a CRISP-related domain, and is annotated with cytokine activity and protein binding. This gene is associated with immune response activation, cytokine production, defense responses to fungi, bacteria, herbivores, and wounding, as well as responses to salicylate, jasmonic acid, and ethylene. It is linked to leaf senescence, embryogenesis, sexual reproduction, and proteolysis, and localizes to the extracellular region, plant-type cell wall, vacuole, and secretory vesicle. HvPR1 is associated with disease resistance, systemic acquired resistance, salt tolerance, lateral root development, hydrogen peroxide content, and responses to cadmium and acid rain. Studies of related genes in other species link the family to pathogen resistance, salicylic acid-mediated defense, and abiotic stress tolerance.