Figure 3.
Formation of P. gingivalis 33277-S. gordonii DL1 heterotypic biofilms. S. gordonii DL1 biofilms were established on polystyrene surfaces coated with human whole saliva. P. gingivalis 33277 grown with or without SAPP (24 µM) was reacted with the DL1 biofilms for 4 h. The bound 33277 in the biofilms was quantitated using qPCR. Each bar represents the number of 33277 cells detected in the biofilms. Error bars indicate standard deviations.