Table 1.
Biochemical characteristics for the identification of selected isolates.
| Biochemical test | Isolate code |
|||
|---|---|---|---|---|
| BTN7A | SA5 | BMS4 | BTN7B | |
| Gram stain | + | + | + | + |
| Cell shape | B | B | B | B |
| Endospore stain | + | + | + | + |
| Oxygen requirements | F | F | F | F |
| Motility test | − | − | − | + |
| Catalase test | + | + | + | + |
| Starch hydrolysis | + | + | + | + |
| Citrate utilization | − | − | − | − |
| Methyl red | − | + | + | + |
| Vogas Proskauer | + | + | − | − |
| Nitrate reduction | ||||
| NH3 | − | − | − | − |
| NO2 | − | − | − | − |
| NO3 | + | + | + | + |
| Carbohydrates fermentation | ||||
| Glucose | − | − | A | A |
| Lactose | − | − | − | − |
| Mannitol | − | − | − | A |
| Arabinose | − | − | − | − |
| Growth at 55 °C | − | − | − | + |
| 6.5% NaCl growth | + | + | + | − |
F = Facultative anaerobes, A = Acid, B = Bacilli.