Table 2.
Initial cell concentrations in the chemostat, tube reactor effluent, and attached biofilm for single-species and dual-species experiments
| Sample type | Speciesa | Log density (t = 0)b |
n | |
|---|---|---|---|---|
| Avg | SD | |||
| Chemostat | FS-3 only | 7.00 | 0.11 | 5 |
| RB-8 only | 7.01 | 0.13 | 6 | |
| Dual species FS-3 | 7.02 | 0.04 | 3 | |
| Dual species RB-8 | 5.73 | 0.22 | 3 | |
| Tubing reactor effluent | FS-3 only | 7.07 | 0.22 | 15 |
| RB-8 only | 6.88 | 0.24 | 5 | |
| Dual species FS-3 | 7.14 | 0.30 | 7 | |
| Dual species RB-8 | 5.74 | 0.48 | 7 | |
| Biofilm | FS-3 only | 7.42 | 0.09 | 10 |
| RB-8 only | 7.28 | 0.10 | 5 | |
| Dual species FS-3 | 7.13 | 0.14 | 6 | |
| Dual species RB-8 | 5.43 | 0.36 | 6 | |
a
FS-3, B. cepacia; RB-8, P. aeruginosa; dual-species FS-3 and dual-species RB-8, strains in coculture.
b
Log densities and standard deviations are expressed as log10 CFU/ml.