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. 2015 Dec 16;2015:181946. doi: 10.1155/2015/181946

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