PR1 — Zea mays

Summary

ZM00001EB299340, designated ZmPR1 on maize chromosome 7, encodes a member of the CAP (cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1) superfamily, containing a V5 allergen-like domain and a CRISP-related region. The protein exhibits cytokine activity and protein binding, and is localized to the secretory vesicle, vacuole, plant-type cell wall, and extracellular space. ZmPR1 is associated with activation of immune response, cytokine production, salicylic acid metabolism, and priming of cellular response to stress. It is linked to defense responses including systemic acquired resistance, disease resistance, and responses to herbivores, water, and cadmium. Agronomically, ZmPR1 is associated with grain yield, plant height, germination rate, anthocyanin content, total soluble sugar content, and plant color. Related genes in other species are linked to salicylic acid-mediated defense and pathogen resistance.