TABLE 4.
Survival of the ultramicrobacterial strain CP-1 in the presence of the bacterivorous flagellate Spumella sp.a
| Day | Strain CP-1
|
Spumella sp., max growth rate (day−1) | ||||
|---|---|---|---|---|---|---|
| Heat immobilization | Cell vol (μm3) | Mean speed (μm s−1) | Survival efficiency (%) | Cell no. (106 ml−1) | ||
| 1 | − | 0.10 ± 0.01 | 58.8 ± 7.2 | 96.7 ± 2.9 | 19.4 ± 2.7 | |
| + | 0.09 ± 0.01 | 5.0 ± 4.3 | 57.1 ± 4.8 | 17.0 ± 0.2 | ||
| 7 | − | 0.08 ± 0.02 | 60.1 ± 5.3 | NDb | 16.3 ± 1.4 | 0.05 ± 0.01 |
| + | ND | ND | ND | 1.5 ± 0.9 | 0.22 ± 0.03 | |
a
Bacterial survival efficiencies were evaluated by video microscopy instantly after the addition of the flagellate on day 1. All values are given as means ± standard deviations.
b
ND, not determined.