Fig. 5From: The effect of in vitro simulated colonic pH gradients on microbial activity and metabolite production using common prebiotics as substratesCorrelation between microbial taxa relative abundance and metabolites (formate, acetate, propionate, butyrate, and lactate) concentrations (A) and inter-species co-occurrence (B). The minimal prevalence (among the sequenced samples) of one given microbial taxa was set to 30%. Species with a mean relative abundance >1.5% were chosen for co-occurrence analysis, and Spearman's rank correlation coefficient of > 0.7 is shown in the chord diagramBack to article page