Figure 5. Growth curves of Td35405, Tde471mut, and Tde471com strains in TYGVS medium (A) and the serum growth medium (B).
The serum growth medium contains 50% heat-inactivated rabbit serum supplemented with 6.0 μg/ml TPP. Cell counting was repeated in triplicate with at least three independent samples. The results are expressed as the mean ± SEM. The data were analyzed by one-way ANOVA followed by Tukey’s multiple comparison at p < 0.01.