Chromobacterium violaceum
Species of bacterium / From Wikipedia, the free encyclopedia
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Chromobacterium violaceum is a Gram-negative, facultative anaerobic, non-sporing coccobacillus. It is motile with the help of a single flagellum which is located at the pole of the coccobacillus. Usually, there are one or two more lateral flagella as well.[1] It is part of the normal flora of water and soil of tropical and sub-tropical regions of the world. It produces a natural antibiotic called violacein, which may be useful for the treatment of colon and other cancers.[2] It grows readily on nutrient agar, producing distinctive smooth low convex colonies with a characteristic striking dark violet metallic sheen (due to violacein production).[3] Some strains of the bacteria which do not produce this pigment have also been reported.[4] It has the ability to break down tarballs.[5]
Chromobacterium violaceum | |
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Blood agar plate culture of C. violaceum. Image from the CDC. | |
Scientific classification | |
Domain: | Bacteria |
Phylum: | Pseudomonadota |
Class: | Betaproteobacteria |
Order: | Neisseriales |
Family: | Neisseriaceae |
Genus: | Chromobacterium |
Species: | C. violaceum |
Binomial name | |
Chromobacterium violaceum (Bergonzini 1880) | |