Figure 2. The percentages of bacteria adhering as single bacteria or in multiplets (> 10 bacteria) for the different sequences of co-adhesion. Note that intermediate multiplets have not been indicated. Actinomyces in buffer followed by streptococci in saliva (white); actinomyces in saliva followed by streptococci in saliva (striped); streptococci in saliva followed by actinomyces in buffer (dotted); and streptococci in saliva followed by actinomyces in saliva (black). Bars indicate SD over 36 experiments, carried out with separately grown bacteria and different pellicle surfaces.