Fig. 3. Differential abundance of bacterium species in appendectomy patients compared to control subjects.
A Bar plot for the differential abundant species identified by LEfSe. Red bars stand for the enriched species in appendectomy patients, while blue bars represent the depleted species in appendectomy subjects. Species that were reported to promote cancer were marked in bold red fonts, while the cancer-inhibiting species were marked in bold green fonts. B The relative abundance for representative appendectomy enriched species, Bacteroides vulgatus and Bacteroides fragilis; and appendectomy-depleted species, Blautia sp SC05B48 and Collinsella aerofaciens in all subjects, young and old subgroups are compared and shown as box plot. C The validation of identified appendectomy-enriched and depleted bacteria species including Bacteroides fragilis, Bacteroides vulgatus, Veillonella dispar, Enterococcus hirae, Lachnospiraceae bacterium Choco86, Blautia sp. SC05B48) was shown by using targeted qPCR in appendectomy cases and control subjects.