Blautia is a genus of anaerobic bacteria. Upon introduction, this genus mostly consisted of species previously described in the genus Ruminococcus.

Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI)

16S rRNA based LTP_10_2024 120 marker proteins based GTDB 09-RS220 Species incertae sedis: "B. aquisgranensis" Hitch et al. 2024 "B. arthritidis" Huang et al. 2024 "B. brookingsii" Ghimire et al. 2020 "B. caccae" Hitch et al. 2024 "Ca. B. equi" Gilroy et al. 2022 "B. flagellata" Huang et al. 2024 "B. immobilis" Huang et al. 2024 "B. intestinihominis" Hitch et al. 2024 "B. lenta" Liu et al. 2021 "B. longa" Huang et al. 2024 "B. ovalis" Huang et al. 2024 "B. phocaeensis" Traore et al. 2017 "B. provencensis" Pham et al. 2017 "B. segnis" Liu et al. 2021

References