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Chromobacterium violaceum is a Gram-negative bacterium common in soils and water. It is noticeable for its intense purple pigmentation due to the production of violacein. This pigment is thought to have antibiotic and antioxidant properties.
Domain Bacteria
Phylum Proteobacteria
Class a -Proteobacteria
Bergey's Manual Volume 2: The Proteobacteria