NIM1 — Beta vulgaris subsp. vulgaris

Summary

BVRB_8G199180 (NIM1, also known as NPR1) on sugar beet chromosome Bvchr8_un.sca001 encodes a transcriptional co-regulator with oxidoreductase activity acting on a sulfur group of donors with disulfide as acceptor, and binds salicylic acid, calmodulin, and DNA. The protein contains BTB/POZ, ankyrin repeat, and NPR1/NIM1-like C-terminal domains. It is associated with the regulation of systemic acquired resistance, salicylic acid-mediated signaling, defense responses to bacteria, insects, and herbivores, as well as responses to microbial phytotoxins, pH, xenobiotic stimuli, and red/far-red light. It localizes to the cytosol, plasmodesma, and stress granules. The gene is linked to traits including Cercospora leaf spot response, drought sensitivity, bacterial blight resistance, and iron content. Related genes in other species are associated with pathogen resistance, systemic acquired acclimation to high light, and salt stress tolerance.