TABLE 2.
API 20 NE profile of the 51 strains of biotype 3a
| Substrate | % (No.) of positive biotype 3 strains | Result with control strain
|
Expected resultc (% positive) | |
|---|---|---|---|---|
| Biotype 1 | Biotype 2 | |||
| Potassium nitrate | 100 (51) | + | + | 100 |
| Tryptophan | 100 (51) | + | + | 95 |
| Glucose | 0 (0) | + | + | 95 |
| Arginine | 0 (0) | − | − | 0 |
| Urea | 0 (0) | − | − | 1 |
| Esculin | 0 (0) | − | − | 95 |
| Gelatin | 100 (51) | + | + | 99 |
| PNPG | 0 (0) | + | + | 99 |
| Glucose | 73 (37) | − | − | 9 |
| Arabinose | 0 (0) | − | − | 0 |
| Mannose | 61 (31) | − | − | 10 |
| Mannitol | 0 (0) | − | + | 9 |
| N-Acetyl-glucosamine | 6 (3) | − | − | 1 |
| Maltose | 100 (51) | − | + | 6 |
| Gluconate | 61 (31) | − | + | 28 |
| Caprate | 0 (0) | − | − | 0 |
| Adipate | 0 (0) | − | − | 0 |
| Malate | 89 (45) | + | + | 95 |
| Citrate | 33 (17) | − | + | 91 |
| Phenyl-acetate | 0 (0) | − | − | 0 |
| Oxidaseb | 100 (51) | + | + | 100 |
a
Substrates that give a positive result with all 51 strains are boldfaced. PNPG, p-nitrophenyl-β-d-glucoside.
b
External test.
c
Expected result for V. vulnificus according to the insert chart provided by the manufacturer.