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Biochemical properties of isolated bacteria.
| Characters | A. hydrophila | P. aeruginosa | V. parahaemolyticus |
|---|---|---|---|
| Gram stain | Negative | Negative | Negative |
| Shape | Rods | Rods | Rods |
| Motility | Motile | Motile | Motile |
| Catalase | + | + | + |
| Oxidase | + | + | + |
| H2S | + | − | − |
| Glucose fermentation | + | − | + |
| Growth in vibriostatic agent 0/129 at 10 μg | + | − | − |
| Indole | + | − | + |
| Urease | + | − | + |
| Voges-Proskauer | + | − | − |
