Fig. 7From: In vivo bioluminescence imaging of the spatial and temporal colonization of lactobacillus plantarum 423 and enterococcus mundtii ST4SA in the intestinal tract of micePersistence of L. plantarum 423 and E. mundtii ST4SA in mouse faeces after five daily oral administrations. Groups of three mice (n = 3, per strain) each were administered once daily (days 1 to 5) with 4 × 109 CFU L. plantarum 423 Fluc or E. mundtii ST4SA Fluc for five consecutive days. Mouse faeces were collected daily from days 1 to 20. At each time point, log10 averages of the a cell counts per 100 mg faeces and the corresponding b bioluminescence in log10 p/s per 100 mg faeces for each group of three mice are plotted with standard deviations. Significant differences between the two groups were assessed using the Mann-Whitney nonparametric test and are indicated with one (P < 0.05), two (P < 0.01) or three (P < 0.001) asterisks. The background bioluminescence signal (approximately 5 × 103 p/s) emitted is represented by a dashed lineBack to article page