Chromobacterium is a genus of gram-negative rods.:279 There are at least two known species within the genus, Chromobacterium violaceum and Chromobacterium subtsugae the latter was discovered by Agricultural Research Scientists (ARS) in Beltsville, Maryland.
^James, William D.; Berger, Timothy G. et al. (2006). Andrews' Diseases of the Skin: clinical Dermatology. Saunders Elsevier. ISBN0-7216-2921-0.
^ abMartin, Phyllis A. W.; Gundersen-Rindal, Dawn; Blackburn, Michael; Buyer, Jeffrey (May 2007). "Chromobacterium subtsugae sp. nov., a betaproteobacterium toxic to Colorado potato beetle and other insect pests". International Journal of Systematic and Evolutionary Microbiology57 (5): 993–999. doi:10.1099/ijs.0.64611-0.