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Fig. 5 | BMC Oral Health

Fig. 5

From: Streptococcus salivarius inhibits immune activation by periodontal disease pathogens

Fig. 5

Salivary microbiota profiles. Bacterial composition of the salivary microbiota was assessed in all volunteers using V4 16S rRNA gene sequencing at five time-points; baseline, 4 h, 24 h, 7 days and 14 days. Volunteers were given chewing gum tablets containing either S. salivarius K12 (Top Panel) or non-probiotic control gum (Bottom Panel). Each cluster of bars is a single volunteer identified by a subject ID number, and each bar in a cluster is an individual saliva sample ordered (left to right) as; baseline, 4 h, 24 h, 7 days, and 14 days. The black bar indicates an uncollected sample. Colours correspond to the proportion of assigned taxonomic family (listed in the legend on the right), ordered according to total relative abundance from bottom of the plot to top. Groups of sequences that are less than 0.05% relative abundance across all samples, or less than 1% of sequences in an individual are grouped as “rem”. Unclassified families are labelled by their lowest classified taxonomic rank

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