Table 3.
Measurement of pH at different cell culture times and cell viability of replicas from the different culture times.
| Postgate C culture medium | Modified Postgate E culture medium | ||||
|---|---|---|---|---|---|
| Time | Desulfovibrio desulfuricans (oral) | Desulfovibrio desulfuricans (environmental) | Desulfovibrio fairfieldensis (association) | ||
| UEF-1 | UEF-3 | UEF-4 | UEF-2 | ||
| pH/cell growth | Culture 445 days | pH 7/reduction | pH 7/positive | pH 7/positive | pH 7/positive |
| Cultivation 7 days (maintenance of 445-day biofilm) | — | — | 7/positive | — | |
| Cultivation 14 days (maintenance of 445-day biofilm) | pH 7/reduction | — | — | pH 7/positive | |
| Replica | Replica of original culture (445 days) | Negative | Negative | Positive | Negative |
| Replica of samples of reimmersion culture | Negative | — | Positive | Positive | |