Table 1. Overview of treatments and incidence of mucoid phenotype.
| Treatment | Phage presence (+) or absence (−) | Transfer (h) | Spatial structure | Incidence of mucoid phenotype |
|---|---|---|---|---|
| 1 | + | 24 | Shaking | 5/5a |
| 2 | − | 24 | Shaking | 0/6 |
| 3 | + | 24 | Static | 2/6b |
| 4 | − | 24 | Static | 0/6 |
| 5 | + | 48 | Shaking | 1/6b |
| 6 | − | 48 | Shaking | 0/6 |
| 7 | + | 48 | Static | 1/6b |
| 8 | − | 48 | Static | 0/6 |
a
By day 10 all populations of Treatment-1 were positive for the mucoid phenotype, which remained a fixed feature of the population for the duration of the experiment.
b
Mucoid phenotypes were also detected in a small number of populations for these treatments; however, they were not a fixed feature of the populations over time and were only infrequently encountered at a low number relative to total population cells densities.