Table 3.
HPLC analysis of nitrate in mouse cecal mucus
Strain | NO3− concna (mM) in mucus | Day of colonization |
---|---|---|
EDL933 Strr | ND | 1 |
ND | 5 | |
ND | 11 | |
narG narZ napDA mutant | 2.76 ± 0.27 | 1 |
2.89 ± 0.33 | 5 | |
2.65 ± 0.49 | 11 | |
narG narZ napDA frdA mutant | 0.77 ± 0.31 | 1 |
0.31 ± 0.25 | 5 | |
ND | 11 |
Nitrate was measured in samples of cecal mucus prepared from mice colonized with the indicated E. coli strains. Values are means ± standard errors of the means for samples from 5 mice. ND, not detected (<3 μM).