TABLE 2.
Bacterial effects on a wide range of algae and protozoans
| Test organism | Strain Ya
|
P. carrageenovorab
|
Control actived | ||
|---|---|---|---|---|---|
| MSE (time)c | Recovery | MSE (time)c | Recovery | ||
| Gymnodinium catenatum | Lysis (1 h 50 min) | No | Disintegrated (27 h 40 min) | No | No |
| Gymnodinium sanguineum | Lysis (1 h 30 min) | No | Disintegrated (3 h 40 min) | No | No |
| Prorocentrum mexicanum | Ecdysis (1 h 50 min) | Yes | None | NAe | Yes |
| Heterosigma akashiwo | Lysis (1 h 50 min) | No | None | NA | Yes |
| Chattonella marina | Lysis (1 h 50 min) | No | None | NA | Yes |
| Skeletonema costatum | None | NA | None | NA | Yes |
| Chroomonas placoidea | None | NA | None | NA | Yes |
| Mantoniella sp. | NS (6 h 55 min) | Yes | None | NA | Yes |
| Oscillatoria sp. | None | NA | None | NA | Yes |
| Bodo sp. | None | NA | None | NA | Yes |
| Amoebae | PC (1 h 10 min) | Yes | PC (1 h 30 min) | Yes | Yes |
a
The initial strain Y concentration was 0.78 × 107 cells per ml.
b
The initial P. carrageenovora concentration was 1.81 × 107 cells per ml.
c
NS, not swimming (most individuals had stopped swimming or moving); PC, pseudopodia contracted (pseudopodia were normally extended by unperturbed feeding cells). For an explanation of other MSE see Table 5, footnote c. The times are the times when the MSE were first observed.
d
The control was considered to have had no effect if the test organism was still active after 2 days.
e
NA, not applicable.