Chromobacterium violaceum Isolated from a Wound Sepsis: A Case Study from Nepal

Table 1

Bacteriological investigations and their results.

Bacteriological parameters	Results
Gram’s stain	Plenty of pus cells and presence of Gram-negative rods
Bacterial growth on MA, BA, and CA	Round, smooth, convex, butyrous, medium size, dark violet colonies, nonlactose fermenting, nonhemolytic, notable production of nondiffusible, dark violet metallic pigment (violacein) in MHA
Triple sugar iron (TSI) agar
Acid production in slant	Negative
Acid production in butt	Positive
Hydrogen sulphide production	Negative
Gas production	Negative
Glucose fermentation	Positive
Lactose and/or sucrose fermentation	Negative
Alkali production in slant	Positive
Sulphide indole motility (SIM)
Motility	Positive
Hydrogen sulphide production	Negative
Indole production	Negative
Urea hydrolysis test	Negative
Citrate utilization test	Negative
Catalase test	Positive
Oxidase test	Positive
Methyl red test	Negative
Voges-Proskauer test	Negative