title: Media-dependent oxidase reaction in a strain of Aeromonas hydrophila.
abstract: A strain of Aeromonas hydrophila isolated from bile was oxidase positive only when grown on nonselective media. The isolate was oxidase negative when grown on gram-negative selective and/or differential media. It is proposed that oxidase tests on gram-negative rods be performed on colonies grown on nonselective media to assure valid results.
mesh_terms: D000333:Aeromonas / Q000254:growth & development / Q000302:isolation & purification*; D003470:Culture Media; D010088:Oxidoreductases
chemical_list: D003470:Culture Media; D010088:Oxidoreductases