TABLE 4.
Surface hydrophibicity of K. pneumoniae strains measured by different methods
| Strain | % Surface hydrophobicitya measured by:
|
||
|---|---|---|---|
| HICb | BATHc
|
||
| Xylene | Hexadecane | ||
| KT769 (O5:K57, wild type) | 1.5 ± 0.3 | 74 ± 3.4 | 89 ± 5.1 |
| KT769-1 (O5−; wbdC defined insertion KT769 mutant) | 28.4 ± 0.7 | 69 ± 2.8 | 78 ± 4.4 |
| KT769-6 (O5−; wzm wzt KT769 deletion mutant) | 29.3 ± 0.6 | 66 ± 2.6 | 74 ± 4.2 |
| KT769-1C (O5+, KT769-1 complemented with CosKT4) | 1.7 ± 0.2 | 75 ± 3.0 | 88 ± 4.9 |
| KT769-6C (O5+, KT769-6 complemented with CosKT4) | 1.6 ± 0.3 | 74 ± 3.6 | 85 ± 2.7 |
a
Mean ± standard deviation of three independent determinations.
b
Percentage of bacteria retained in the gel.
c
Percent absorbance of the aqueous phase after treatment with hydrocarbon (0.2 ml) relative to initial absorbance.