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Fig. 4 | BMC Oral Health

Fig. 4

From: Polymicrobial synergy stimulates Porphyromonas gingivalis survival and gingipain expression in a multi-species subgingival community

Fig. 4

Growth and composition over time of multi-species communities containing P. gingivalis strains W50, K1A or E8 in serum. a Graph showing growth of multi-species communities containing P. gingivalis strain W50 (dotted line), K1A (dashed line) or E8 (solid line) in serum, assessed as absorbance at 600 nm (mean ± SD of three independent biological replicates, **p < 0.01). b A representative confocal FISH image showing composition of the W50-containing consortium after 2 days [P. gingivalis (red), F. nucleatum (green), P. micra (blue) and S. constellatus (yellow)]. The bar represents 10 µm. Composition of multi-species communities containing P. gingivalis strains W50, K1A or E8 on day 0 and day 2 assessed using c growth on blood agar or d qPCR [P. gingivalis (red), F. nucleatum (green), P. micra (blue) and S. constellatus (yellow)]. Numbers represent mean ± SD of three independent replicates, **p < 0.01

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