TABLE 1.
Physiological characteristics of isolates F and G
| Test | Result for isolatea:
|
|
|---|---|---|
| F | G | |
| Shape of cells | Irregular rods | Rods |
| Width of cells (μm) | 0.8–1.0 | 0.5–0.6 |
| Length of cells (μm) | 1.5–3.0 | 1.8–2.5 |
| Motility | ND | + |
| No. of flagella | ND | >1 |
| Gram reaction | − | − |
| Lysis by 3% KOH | w | + |
| Aminopeptidase (Cerny) | + | + |
| Oxidase | + | + |
| Catalase | + | + |
| Color of colonies | Red | Transparent, bluish |
| Pigment fluorescence | ND | + |
| Pyocyanin | ND | − |
| Arginine dihydrolase | − | + |
| NO3 utilization | − | − |
| Denitrification | − | − |
| Urease | ||
| 24 h | − | − |
| 5 days | + | ND |
| Hydrolysis of: | ||
| Gelatin | + | + |
| Esculin | ND | − |
| Levan from sucrose | ND | + |
| Lecithinase | ND | + |
| Indol reaction | − | ND |
| Growth at: | ||
| 41°C | ND | − |
| 37°C | ND | − |
| Utilization of: | ||
| N-Acetylglucosamine | ND | + |
| Adipate | ND | − |
| Arabinose | − | + |
| l-Aspartate | + | ND |
| Betaine | + | ND |
| Caprate | − | + |
| Citraconate | ND | − |
| Citrate | − | + |
| Erythritol | ND | + |
| Ethanol | + | ND |
| Fructose | − | ND |
| Gluconate | − | + |
| Glucose | − | + |
| m-Inositol | ND | + |
| Malate | + | + |
| Maltose | − | ND |
| Mannitol | − | + |
| Mannose | − | ND |
| Methanol | + | ND |
| Phenylacetate | − | − |
| Sebacinate | − | ND |
| Sorbitol | ND | + |
| Trehalose | ND | + |
| Trimethylamine | − | ND |
| d-Xylose | − | ND |
a
ND, not detected; +, positive; w, weakly positive; −, negative traces