Ratios RI, BU & EC

Quantification of mixed ratios of the gut bacteria Roseburia intestinalis (RI), Bacteroides uniformis (BU) and Escherichia coli (EC) Notes: Initial monocultures of the three strains were measured and all monocultures were diluted in PBS to the same concentration. Subsequently, the monocultures were mixed in different ratios (as described in the sample names). In addition, monoculture ratios were also made in PBS to approximate cell counts in the mixtures. Some monoculture-dilutions were made twice when they appear twice in the ratios, indicated with _r_. Undiluted monoculture data is also available (no number indicated after abbreviation).