PR1 — Triticum turgidum subsp. durum

Summary

TRITD5BV1G027980 (symbol PR1, also known as TtPR1) on durum wheat chromosome 5B encodes a protein containing a CAP domain characteristic of the cysteine-rich secretory protein family, with annotated cytokine activity and protein binding. The gene is associated with activation of immune response, cytokine production, and priming of cellular response to stress. It is linked to defence responses against bacteria, herbivores, and wounding, as well as responses to salicylic acid, jasmonic acid, and ethylene. Associations include systemic acquired resistance, disease resistance, salt tolerance, and lateral root development. The encoded protein localises to the secretory vesicle, vacuole, plant-type cell wall, and extracellular space. Studies of related genes in other species connect the family to salicylic acid-mediated defence, pathogen resistance, and abiotic stress tolerance.