Correlation between butyrate production and the fraction of predominant butyrate-producing bacteria in the total microbiota produced in effluents of PolyFermS models.

Open circles visualize the mean relative abundance (% of total flora) of predominant butyrate-producing bacteria (Faecalibacterium prausnitzii, Eubacterium rectale, Roseburia spp.) in IR, CR and TR of model A, B and C and colored bars indicate mean model-specific molar metabolite ratios (%) of acetate (in red), propionate (in green) and butyrate (in blue), with IR pH at 5.7 (t1) and 5.5 (t2).空心散点可视化展示了模型A、B、C的IR组、CR组及TR组内优势产丁酸菌（普拉梭菌（Faecalibacterium prausnitzii）、直肠真杆菌（Eubacterium rectale）、罗氏菌属（Roseburia spp.））的平均相对丰度（占总菌群的百分比）；彩色柱状条则代表乙酸（红色）、丙酸（绿色）与丁酸（蓝色）的模型特异性平均摩尔代谢物占比（%），其中IR组的pH值在t1时刻为5.7、t2时刻为5.5。