Composition of intestinal microbiota produced in effluents of PolyFermS models.

A. Similarity to the fecal donor. Open circles and straight lines correspond to single and mean similarity indices, respectively, based on Pearson product-moment correlation coefficients for HITChip fingerprints generated from fecal donor samples and PolyFermS model reactor effluents obtained from model A, B and C at time points t1 and t2 from all reactors and at t3 and t4 from IR and CR. B. Temporal diversity development. Open circles and lines correspond to single and mean Simpson’s reciprocal indices of diversity, respectively, calculated for effluent samples obtained from model A, B and C at time points t1 and t2 from all reactors and at t3 and t4 from IR and CR. Dashed lines indicate the Simpson’s reciprocal index of the corresponding fecal donor sample. A higher Simpson’s reciprocal index reflects a more diverse community, e.g. in terms of species richness and evenness.

A. 与粪便供体的相似性。空心圆点与直线分别代表基于皮尔逊积矩相关系数（Pearson product-moment correlation coefficients）计算得到的单一相似性指数与平均相似性指数，该系数由粪便供体样本以及模型A、B、C的PolyFermS模型反应器流出物的HITChip指纹图谱（HITChip fingerprints）生成，其中流出物采样覆盖所有反应器的t1、t2时间点，以及IR、CR组的t3、t4时间点。
B. 时序多样性变化趋势。空心圆点与直线分别代表单一辛普森反向多样性指数（Simpson’s reciprocal index of diversity）与平均辛普森反向多样性指数，该指数针对模型A、B、C的流出物样本计算所得，采样覆盖所有反应器的t1、t2时间点以及IR、CR组的t3、t4时间点。虚线代表对应粪便供体样本的辛普森反向多样性指数。辛普森反向多样性指数越高，反映群落多样性越丰富，例如在物种丰富度与均匀度层面。