TABLE 2.
Comparison of the time taken for membrane ruffle initiation after bacterial adherence by three S. enterica serovar Typhimurium strainsa
| S. Typhimurium strain | nb | Ruffle induction time after adherence (s)c |
|
|---|---|---|---|
| Median | Range | ||
| SL1344 | 111 | 60 | 20-630 |
| SL1344LS | 119 | 70 | 20-490 |
| SL1344LS(pBRluxS) | 127 | 60 | 20-460 |
a
S. enterica serovar Typhimurium strains SL1344 (wild type), SL1344LS, and SL1344LS(pBRluxS) were grown for 3.5 h in LB.
b
The number of productive bacterium-cell interactions analyzed (n) is shown.
c
The time interval between bacterial binding to MDCK cells and induction of membrane ruffling was obtained from phase-contrast video microscopy. Data are expressed as median values, and the range in time intervals (minimum to maximum) was measured.