General Information: Ralstonia pickettii 12J was isolated from copper-contaminated sediment from a lake in Michigan, USA. In addition to being highly resistant to copper, strain 12J is also resistant to zinc and cadmium. Ralstonia pickettii can be isolated from a wide range of environmental and clinical samples. This species is a nocosomial pathogen. It is associated with infections caused by contaminated solutions, such as distilled water and intravenous solutions. Ralstonia pickettii strains resistant to heavy metals have also been isolated from heavy metal contaminated environments.