Table 3.
Phenotypic characteristics of Shewanella algae isolates.
| Reaction | Values are positive percentages | |
|---|---|---|
| Aquaculture isolates (n=19) (%) | Water isolates (n=7) (%) | |
| Growth at | ||
| 4°C on MB | 0 | 14 |
| 25°C on MB | 100 | 100 |
| 37°C on MB | 100 | 100 |
| 42°C on MB | 74 | 100 |
| 30°C in LB with 0% NaCl | 100 | 100 |
| 30°C in LB with 2% NaCl | 100 | 100 |
| 30°C in LB with 6% NaCl | 100 | 100 |
| 30°C in LB with 10% NaCl | 0 | 0 |
|
| ||
| Hemolysis of blood agar plate at | ||
| 37°C (24 hrs) | 89 | 100 |
| 25°C (24 hrs) | 0 | 0 |
| 37°C (72 hrs) | 100 | 100 |
| 25°C (72 hrs) | 53 | 57 |
|
| ||
| Reactions/enzymes (API20NE) | ||
| Reduction of nitrates to nitrites | 100 | 100 |
| Indole production | 0 | 0 |
| Glucose fermentation | 0 | 0 |
| Arginine dihydrolase | 5 | 0 |
| Urease | 32 | 29 |
| β-Glucosidase | 53 | 43 |
| Gelatinase | 95 | 100 |
| β-Galactosidase | 11 | 0 |
|
| ||
| Assimilation (API20NE) | ||
| Glucose | 0 | 14 |
| Arabinose | 0 | 0 |
| Mannose | 0 | 0 |
| Mannitol | 0 | 0 |
| N-Acetyl-glucosamine | 95 | 100 |
| Maltose | 16 | 14 |
| Potassium gluconate | 0 | 14 |
| Capric acid | 79 | 71 |
| Adipic acid | 0 | 0 |
| Malic acid | 100 | 86 |
| Trisodium citrate | 11 | 29 |
| Phenylacetic acid | 0 | 0 |
|
| ||
| Others | ||
| Oxidase | 100 | 100 |
| H2S-production (TSIA) | 100 | 100 |