PR1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.5HG0473580, designated HvPR1 on barley chromosome 5H, encodes a protein containing a CAP (cysteine-rich secretory protein, antigen 5, and pathogenesis-related 1) domain and belongs to the V5 allergen-like family. The product exhibits cytokine activity and protein binding. HvPR1 is associated with activation of immune response, cytokine production, and priming of cellular response to stress. It is linked to defence response to other organism, response to herbivore, and response to wounding, as well as responses to salicylate, jasmonic acid, and ethylene. The gene is associated with leaf senescence, embryogenesis, and sexual reproduction. Associations with disease resistance, systemic acquired resistance, salt tolerance, and lateral root development have been reported. The protein localises to the extracellular space, plant-type cell wall, vacuole, and secretory vesicles.