TABLE 3.
Hybridization to icaA probe among food related staphylococci with different biofilm formation abilities
| Species | Total no. of strains | No. of hybridization-positive strains/ total no. of strains
|
||
|---|---|---|---|---|
| Stronga | Weakb | Negativec | ||
| S. aureus | 3 | 3/3d | ||
| S. capitis | 3 | 3/3d | ||
| S. caseolyticus | 4 | 1/4 | ||
| S. condimenti | 4 | 1/1d | 3/3 | |
| S. cohnii | 10 | 1/1 | 1/7 | 1/2 |
| S. epidermidis | 9 | 1/1 | 4/8 | |
| S. hominis | 1 | 0/1 | ||
| S. intermedius | 4 | 1/1 | 3/3 | |
| S. lentus | 3 | 0/2 | 1/1 | |
| S. piscifermentans | 2 | 1/2 | ||
| S. saprophyticus | 6 | 2/2 | 3/3 | 1/1 |
| S. schleiferi | 1 | 1/1 | ||
| S. sciuri | 2 | 1/2 | ||
| S. simulans | 14 | 3/6 | 1/8 | |
| S. vitulinus | 1 | 0/1 | ||
| Total | 67 | 7/7 | 9/21 | 22/39 |
a
Strains with A492 > 1.0 in the biofilm assay (number of strains hybridizing to icaA/total number of strains tested).
b
Strains with 0.20 ≤ A492 ≤ 1.0 in the biofilm assay (number of strains hybridizing to icaA/total number of strains tested).
c
Strains with A492 < 0.20 in the biofilm assay (number of strains hybridizing to icaA/total number of strains tested).
d
Number of strains which hybridized at 55°C to the S. epidermidis RP62A icaA-specific probe/total number of strains.