NPR1 — Pisum sativum

Summary

PSAT1G169720 (PsNPR3) on chromosome 1LG6 encodes a protein with NPR, BTB/POZ, ankyrin repeat, and zinc finger domains, and is annotated as a transcriptional co-regulator with salicylic acid binding, calmodulin binding, hydrolase activity, and DNA binding transcription factor activity. In pea, PsNPR3 is associated with regulation of systemic acquired resistance, salicylic acid and jasmonic acid mediated signaling pathways, defense responses to bacteria and herbivores, stipule development, floral organ abscission, and response to hypoxia. It localizes to the nucleus, cytoplasm, and plasma membrane. The gene is linked to bacterial blight disease resistance, drought sensitivity, wheat stripe rust and powdery mildew responses, Cercospora leaf spot response, and inflorescence morphology. Related genes in other species connect the family to innate immunity, pathogen resistance, and salicylic acid-dependent gene expression.