PR1 — Triticum turgidum subsp. durum

Summary

TRITD5AV1G219360, designated TtPR1 on durum wheat chromosome 5A, encodes a CAP-domain-containing protein of the PR-1 family with cytokine activity and protein binding. The gene is associated with defence responses to bacteria, herbivores, wounding, and other organisms, as well as with systemic acquired resistance, induced systemic resistance, and responses to salicylic acid, jasmonic acid, and ethylene. TtPR1 has been linked to disease resistance against Rhizoctonia solani, Pseudomonas syringae, and Alternaria brassicicola, and to tolerance of salt and cadmium. The protein localises to the extracellular space, plant-type cell wall, vacuole, and secretory vesicles. Studies of related genes in other species connect the family to salicylic acid-mediated defence, fungal disease resistance, and abiotic stress tolerance.