TABLE 2.
Predation of K. pneumoniae in the presence of carbohydrates
| Carbohydrate | No. of host CFU/ml | pH of medium |
|---|---|---|
| Control | 5 × 104 | 7 |
| Ara | 8.1 × 108 | 2.5 |
| Dex | 5 × 108 | 3 |
| Gal | 8 × 108 | 2 |
| Fru | 8.5 × 108 | 3 |
| Man | 9 × 108 | 2.5 |
| Suc | 9.2 × 108 | 4.2 |
| Lac | 8 × 108 | 2.5 |
| Xyl | 9.8 × 108 | 2.5 |
| Gly | 1.1 × 108 | 4.25 |
K. pneumoniae (5.5 × 108 CFU/ml) was cocultured in DNB medium (pH 6.5) with B. bacteriovorus (control) or B. bacteriovorus supplemented with a 0.1 M concentration (exceptions noted) of the following carbohydrates: arabinose (Ara), dextrose (Dex), galactose (Gal), fructose (Fru), mannose (Man), sucrose (Suc), lactose (Lac), xylose (Xyl), and glycerol (Gly; 0.54 M). Medium pH and host CFU numbers were measured following 24 h of incubation.