Table 1.
Adhesion and invasion of S. Dublin (SDu) and S. Typhimurium (STm) WT and flagella and chemotaxis mutantsa in cultured epithelial Int407 cells
| Strain | Adhesion (% of wild type) | Invasion (% of wild type) |
|---|---|---|
| SDu cheA |
47.8 ± 5.6 |
83.4 ± 8.0 |
| SDu cheB |
19.5 ± 7.8 |
2.4 ± 0.9*** |
| SDu fliC |
6.0 ± 3.3*** |
1.0 ± 0.3*** |
| STm cheA |
76.2 ± 33.5 |
40.8 ± 10.9** |
| STm cheB |
15.6 ± 2.7*** |
1.2 ± 1.3*** |
| STm fliC/fljB | 12.5 ± 1.9*** | 0.4 ± 0.3*** |
a: Performance of mutant strains was compared statistically to the wild type strain of the same serovar. **: p<0.01; ***: p<0.001.
The inoculum of each strain was between Log10 7.9 and Log10 8.2 with no significant difference between strains.