Composition of intestinal microbiota produced in effluents of PolyFermS models.

A. Similarity to the fecal donor. Open circles and straight lines correspond to single and mean similarity indices, respectively, based on Pearson product-moment correlation coefficients for HITChip fingerprints generated from fecal donor samples and PolyFermS model reactor effluents obtained from model A, B and C at time points t1 and t2 from all reactors and at t3 and t4 from IR and CR. B. Temporal diversity development. Open circles and lines correspond to single and mean Simpson’s reciprocal indices of diversity, respectively, calculated for effluent samples obtained from model A, B and C at time points t1 and t2 from all reactors and at t3 and t4 from IR and CR. Dashed lines indicate the Simpson’s reciprocal index of the corresponding fecal donor sample. A higher Simpson’s reciprocal index reflects a more diverse community, e.g. in terms of species richness and evenness.