title: NH4+ derepression of azide resistant mutant of Azotobacter chroococcum.
abstract: Five azide resistant mutants of Azotobacter chroococcum were isolated after MNNG mutagenesis. These mutants varied in their ability to detoxify azide in the presence of NH4+ and this ability has been found to be directly related to NH4+ derepression.
mesh_terms: D000641:Ammonia / Q000494:pharmacology*; D001386:Azides / Q000378:metabolism / Q000494:pharmacology*; D001395:Azotobacter / Q000187:drug effects / Q000235:genetics*; D004352:Drug Resistance, Microbial; D008658:Inactivation, Metabolic; D008769:Methylnitronitrosoguanidine / Q000494:pharmacology; D009154:Mutation; D019810:Sodium Azide
chemical_list: D001386:Azides; D008769:Methylnitronitrosoguanidine; D000641:Ammonia; D019810:Sodium Azide