Table 1.
Viability and filamentation of Campylobacter strains growing in different media.
| Media | Strain | Time to achieve stationary phase (h)* | Time to first filaments (h)† | Viable count at first filamentation (CFU/ml) |
|---|---|---|---|---|
| NB2 | HPC5 | 30 | 24 | 3.0 × 109 |
| HF5 | 30 | 24 | 1.3 × 109 | |
| Pre-used filtered NB2 | HPC5 HF5 |
24 24 |
24 24 |
2.5 × 109 8.3 × 108 |
| Minimum essential medium ({MEM; (with sodium pyruvate) | HPC5 | 24 | 6 | 1.0 × 107 |
| HF5 | 24 | 6 | 1.6 × 107 | |
| FB1$ OR4451C$ OR5482C$ |
24 24 24 |
24‡ 6 6 |
4.0 × 106 3.32 × 107 6.0 × 107 |
|
| 81116 | 24 | 6 | 6.2 × 107 | |
| 11168 | 24 | 6 | 1.7 × 107 | |
| 12661 | 24 | 6 | 2.1 × 107 | |
| 81-176 | 24 | 6 | 1.3 × 107 | |
| PT14 | 24 | 6 | 5.2 × 107 | |
| MEM (without sodium pyruvate) | HPC5 HF5 |
- – |
2 2 |
2.6 × 106 1.6 × 106 |
*Determined from growth curve inoculated with ~106 CFU.
†Determined microscopically, ‡Double length cells, $Campylobacter coli.