Table 1.
Strains | Competitive index |
---|---|
hapR | 1.2 |
luxO | <6.7 × 10−4 |
luxOhapR | 0.38 |
Assays were performed as described in Materials and Methods. The competitive index represents the ratio of output mutant to wild type (recovered from the intestine) divided by the ratio of input mutant to wild type (inoculated into the mouse). The P value for each independent experiment is <0.05 as determined by using the Student's t test.