PR1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0668900, designated HvPR1 on barley chromosome 7H, encodes a protein of the CAP superfamily, containing a V5 allergen-like domain and a CRISP-related region. The gene is associated with systemic acquired resistance, induced systemic resistance, immune response, defense response to other organisms, leaf senescence, embryogenesis, proteolysis, and signal transduction. Its product localises to the extracellular region and vacuole. HvPR1 is also linked to hydrogen peroxide content. Studies of related genes in other species further connect this gene family to plant defense responses.