NPR1 — Brassica juncea

Summary

BJUB02G51630S (BjNPR3) on chromosome B02 of Indian mustard encodes a transcriptional co-regulator with salicylic acid binding, calmodulin binding, DNA binding, and hydrolase activity, belonging to the NPR1/NIM1-like family with BTB/POZ and ankyrin repeat domains. The gene is associated with regulation of systemic acquired resistance, salicylic acid and jasmonic acid mediated signaling pathways, defense responses to bacteria and herbivores, response to hypoxia, stipule development, and floral organ abscission. It localizes to the nucleus, cytoplasm, and plasma membrane. Associations include bacterial blight disease resistance, drought sensitivity, leaf and panicle length, stem senescence, water use efficiency, and responses to various fungal pathogens such as Cercospora leaf spot, wheat stripe rust, and rice sheath blight. Related genes in other species link the family to enhanced pathogen resistance, cold tolerance, and thermotolerance.