Figure 1.

Consumption of exogenously added indole by selected bifidobacterial strains.

A. A possible route of TrpB- and ALDH-positive bifidobacteria to consume exogenous indole. B. The concentration of indole in the culture supernatants of selected Bifidobacterium strains grown in MRS medium supplemented with the spent medium of a TIL-positive E. coli. Non-inoculated medium was used as a control. Values of three biological replicates were plotted, while bars represent the mean. See Supplementary Table S5 and Source Data for plot data and statistical values.