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Scientific classification

Sijpesteijn, 1948

Ruminococcus is a genus of bacteria in the class Clostridia.[1] They are anaerobic, Gram-positive gut microbes. One or more species in this genus are found in significant numbers in the intestines of humans. The type species is R. flavefaciens. As usual, bacteria taxonomy is in flux, with Clostridia being paraphyletic, and some erroneous members of Ruminococcus being reassigned to a new genus Blautia on the basis of 16S rRNA gene sequences.[2]

One of the most highly cited papers involving the genus Ruminococcus is a paper describing interspecies hydrogen transfer between Ruminococcus albus and Wolinella succinogenes.[3]


Species belonging to the Lachnospiraceae family and therefore in need of reclassification:


  1. ^ taxonomy. "Taxonomy browser (Ruminococcus)". Retrieved 2016-04-05.
  2. ^ Liu, C.; Finegold, S. M.; Song, Y.; Lawson, P. A. (2008). "Reclassification of Clostridium coccoides, Ruminococcus hansenii, Ruminococcus hydrogenotrophicus, Ruminococcus luti, Ruminococcus productus and Ruminococcus schinkii as Blautia coccoides gen. nov., comb. nov., Blautia hansenii comb. nov., Blautia hydrogenotrophica comb. nov., Blautia luti comb. nov., Blautia producta comb. nov., Blautia schinkii comb. nov. and description of Blautia wexlerae sp. nov., isolated from human faeces". International Journal of Systematic and Evolutionary Microbiology. Society for General Microbiology. 58 (8): 1896–1902. doi:10.1099/ijs.0.65208-0. PMID 18676476. Retrieved 21 April 2011.
  3. ^ Iannotti, E. L.; Kafkewitz, D.; Wolin, M. J.; Bryant, M. P. (1973-06-01). "Glucose fermentation products in Ruminococcus albus grown in continuous culture with Vibrio succinogenes: changes caused by interspecies transfer of H 2". Journal of Bacteriology. 114 (3): 1231–1240. ISSN 0021-9193. PMC 285387. PMID 4351387.