Table 1.
Phenotypic characteristics of Fusobacterium necrophorum ssp. funduliforme and F. necrophorum ssp. necrophorum from 357 human isolates, four animal isolates and the type strains of ssp. necrophorum ATCC 252S6 and ssp. funduliforme ATCC 51357.
| Characteristic | Subspecies |
|
|---|---|---|
| funduliformea | necrophorumb | |
| Routine phenotypic characters | n = 358 | n = 5 |
| Colony margins | Entire | Irregular |
| Colony surface | Glistening | Dull |
| Colony elevation | Pulvinate | Convex |
| Colony consistency | Creamy | Waxy |
| Cellular morphology | Coccoid pleomorphic rods | Pleomorphic rods |
| Gram stain | ÷ | ÷ |
| Smell of butyric acid | + | + |
| Fluorescence in Wood's light | + | + |
| β-haemolysi s on horse blood | + | + |
| Metronidazole susceptible | + | + |
| Kanamycin susceptible | + | + |
| Penicillin susceptible | + | + |
| Additional phenotypic characters | n = 41 | n = 5 |
| Catalase | ÷ | ÷ |
| Indole | + | + |
| Lipase | + | + |
| β-galactosidase | ÷ | ÷ |
| DNase | + | + |
| Fermentation of mannose | ÷ | ÷ |
| Fermentation of fructose | ÷ | ÷ |
| Fermentation of glucose | + | + |
| Hydrolysis of esculin | ÷ | ÷ |
| Propionic acid from lactate (GLC) | + | + |
| Propionic acid from threonine (GLC) | + | + |
| Butyric acid from glucose (GLC) | + | + |
| Chicken erythrocyte agglutination | ÷ | + |
| Human erythrocyte agglutination | ÷ | + |
a
356 human isolates, 1 type strain, 1 animal isolate
b
1 human isolate, 1 type strain, 3 animal isolates.