TABLE 2.
Comparison of the biochemical characteristics of the strains isolated from marine fish with those of V. hollisae strainsa
| Species | No. of strains | Color of the colony on the isolation mediumb | TSI | H2S (on TSI) | Oxidase | Motility | Lysine decarboxylase | Arginine dihydrolase | Ornithine decarboxylase | Indole |
|---|---|---|---|---|---|---|---|---|---|---|
| V. hollisae | 2c | Purple | K/Ad | − | + | − | − | − | − | + |
| Unknowne | 5 | Purple | K/A | − | + | − | − | − | − | − |
| 3 | Purple | K/A | − | + | − | − | + | − | − | |
| 25 | Purple | K/A | − | + | − | − | + | − | − | |
| 1 | Purple | K/A | − | − | + | − | + | − | − | |
| 15 | Purple | K/A | − | − | − | − | + | − | − | |
| 1 | Purple | K/A | − | − | − | − | − | − | − | |
| 2 | Purple | K/A | − | − | − | + | + | − | − | |
| 13 | Green | K/A | − | + | − | − | + | − | − | |
| 6 | Green | K/A | − | + | − | + | + | + | − | |
| 3 | Green | K/A | + | + | − | + | + | + | − |
a
TSI, triple sugar iron.
b
The agar medium designed for isolation of V. hollisae (19).
c
A clinical strain, 525-82, and an environmental strain, RIMD 2221011. The characteristics of these strains were consistent with those of V. hollisae described in references 7, 9, and 19.
d
K/A, alkaline top (red) and acid bottom (yellow).
e
Seventy-four strains isolated from marine fish (explained in the text).