Fig. 5
From: Bacteroides salyersiae is a potent chondroitin sulfate-degrading species in the human gut microbiota
Cross-feeding interactions between B. salyersiae and B. stercoris. Experimental design of the spent medium assay (A). TLC showing the utilization of udp4 by B. salyersiae CSP6, B. stercoris P22-5, and B. stercoris P22-28 (B). B. salyersiae CSP6 was used as a negative control for the assay. The utilization of udp4 was monitored from 12 to 96 h using UPLC-MS/MS analysis. C Total ion chromatograms showing the elution profiles of udp4 in the culture medium of B. salyersiae CSP6 (D), B. stercoris P22-5 (E), and B. stercoris P22-28 (F) at different time points. A proposed model for understanding the cross-feeding interactions between B. salyersiae and B. stercoris (G). Part of the figure was created with BioRender.com. **p < 0.01; ***p < 0.001