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. 2011 Nov;77(22):8009–8014. doi: 10.1128/AEM.05573-11

Fig. 3.

Fig. 3.

13C enrichment of the 16S rRNAs of total bacteria (A), the Bacteroides-Prevotella group (B), bifidobacteria (C), the Eubacterium rectale-Clostridium coccoides group (D), and the Clostridium leptum subgroup (E) after 6 h of incubation of 1% human fecal sample with [13C]urea (0.939 mg/ml) in mineral medium without oligofructose (MM − OF) or with 10 g/liter oligofructose (MM + OF) and in Wilkins-Chalgren broth without oligofructose (WC − OF) or with 10 g/liter oligofructose (WC + OF). **, P < 0.01 versus the control (MM − OF); a, P < 0.05 versus MM + OF.