Figure 2From: Role of Porphyromonas gingivalis gingipains in multi-species biofilm formation Localization of P. gingivalis and T. forsythia within the biofilms. Multiplex IF staining was performed for P. gingivalis (red) and T. forsythia (green). Groups are defined by the use of the (A) wild-type, (B) Arg-gingipain-deficient mutant, (C) Lys-gingipain-deficient mutant P. gingivalis strain in the biofilm. Scale bar length: 20 μm.Back to article page