Fig. 2
From: Corncob structures in dental plaque reveal microhabitat taxon specificity
Dental plaque hedgehogs contain corncobs of mixed composition. Hedgehog structures are identified in plaque by the presence of a cluster of Corynebacterium filaments with corncobs at the periphery. Family- and genus-level probes (top in each pair of images) show corncobs composed of cells of genera Streptococcus (green), Porphyromonas (blue), and Corynebacterium (magenta) and family Pasteurellaceae (yellow). Species-level probes (bottom in each pair of images) show that the Streptococcus population in a given hedgehog can contain mostly S. cristatus (cyan) (A), mostly S. mitis/oralis/infantis (red) (B), or a mixture of both S. cristatus and S. mitis/oralis/infantis (C). Mixed corncob communities in hedgehogs can also contain Porphyromonas together with both S. cristatus and S. mitis/oralis/infantis (D, E), and may also contain cells of family Pasteurellaceae as an additional, outer layer on the corncobs (F)