Fig. 5.

Fig. 5. Effects of BG on the diversity, species abundance, and composition of characteristic strains of intestinal flora in UC mice. (A) Alpha diversity analysis (Chao1 and Shannon index). (B) Beta diversity principal coordinates analysis (PCoA) based on Bray-Crutis distance. (C) Relative abundance of microbiota at the phylum level. (D) Relative abundance of microbiota at the genus level. Relative abundance of Allobaculum, Bacteroides (E) Bacteroides acidifaciens (F) (G) Marker species taxonomic LefSe (LDA Effect Size) analysis. Node size corresponds to the mean relative abundance of the OTU; hollow nodes represent OTUs with non-significant differences between groups, while solid nodes represent OTUs with higher abundance and significant differences between groups. letters identify the names of taxonomic units with significant differences between groups. (H) Heat map of species composition at the species level. (I) Random forest model analysis of marker species. Importance on the right side indicates that from top to bottom species are of decreasing importance to the model, and it can be assumed that these species at the top of the importance scale are marker species for differences between groups. (J) Spearman's correlation analysis between intestinal flora and indicators of enterocolitis. (UC means DSS, BN/SDFL means BGL, BN/SDFH means BGH. Compared with the UC group, *p < 0.05, **p < 0.01. Compared with the ND group, Δp < 0.05, ΔΔp < 0.01)

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