PR1 — Zea mays

Summary

ZM00001EB299360, designated ZmPR1 on maize chromosome 7, encodes a CRISP-related protein containing a CAP domain, a member of the CAP superfamily. The gene product is associated with cytokine activity and protein binding, and is localised 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, response to water, herbivore defence, and priming of cellular stress response. It has been associated with grain yield, plant height, anthocyanin and total soluble sugar content, germination rate, and plant colour. Associations include disease resistance, systemic acquired resistance, salt tolerance, cadmium response, and defence against insects and pathogens such as Rhizoctonia solani and Pseudomonas syringae. Studies of related genes in other species link the family to salicylic acid-mediated defence, systemic immunity, and resistance to Botrytis cinerea and Cucumber mosaic virus.