PR1 — Pisum sativum

Summary

PsPR1 (PSAT1G213200) on garden pea chromosome 1LG6 encodes a protein containing a CAP domain and a CRISP-related motif, with annotated cytokine activity and protein binding. The gene is associated with immune activation, defense responses to bacteria, herbivores, and wounding, as well as responses to salicylic acid, jasmonic acid, and ethylene. It is linked to systemic acquired resistance, induced systemic resistance, and resistance to pathogens including Rhizoctonia solani, Pseudomonas syringae, Verticillium dahliae, and Alternaria brassicicola. Additional associations include salt tolerance, cadmium response, acid rain response, aphid resistance, and cell cycle control. The protein localizes to the extracellular space, plant-type cell wall, vacuole, and secretory vesicles. Studies of related genes in other species link the PR-1 family to disease resistance, abiotic stress tolerance, and herbivore defense.