Figure 4.

Box plots showing cell numbers of all species determined by quantitative real‐time PCR for biofilms with Tannerella forsythia ATCC 43037 wild‐type or mutants (∆pseC, ∆wecC, ∆tfsAB, ∆pseC _comp) (A) and UB4 wild‐type or mutants (∆legC, ∆legC _comp), respectively (B). Data derived from three independent experiments were plotted on a logarithmic scale. Asterisk (*) indicates significant differences (P≤.05) between the groups