| S.No |
Characteristics |
Results |
| |
Colony morphology |
Dirty white coloured, large opaque colonies, dull or frosted glass appearance with raised and undulated margin |
| |
Gram staining and shape |
Positive, Rods |
| |
Endospore Staining and spore location |
Positive and subterminal |
| |
Motility |
Positive |
| |
Catalase test |
Positive |
| |
Indole test |
Negative |
| |
Nitrate Reduction |
Positive but delayed |
| |
VP test |
Positive |
| |
Citrate |
Positive |
| |
Methyl red |
Negative |
| |
Sugar
Fermentation |
Glucose |
Positive |
| |
Lactose |
Negative |
| |
Maltose |
Positive |
| |
Mannitol |
Negative |
| |
Sucrose |
Positive but delayed |
| |
Arabinose |
Negative |
| |
Polymyxin B sulphate senstivity |
Resistant |
|
