TY - JOUR
T1 - Acetatifactor muris gen. nov., sp. nov., a novel bacterium isolated from the intestine of an obese mouse
AU - Pfeiffer, Nora
AU - Desmarchelier, Charles
AU - Blaut, Michael
AU - Daniel, Hannelore
AU - Haller, Dirk
AU - Clavel, Thomas
N1 - Funding Information:
Acknowledgments We are grateful to Nico Gebhardt, Melanie Klein, Katharina Rank (TU München) and Sabine Schmidt (DIfE) for excellent technical assistance, to Jean P. Euzeby (Ecole Nationale Vétérinaire, Toulouse, France) for helping with Latin bacterial names and to staff members of the DSMZ for carrying out descriptive analysis of the isolate. C.D. was financed by the EU FP6 project Nutrient Sensing in Satiety Control and Obesity (NuSISCO, Grant no. MEST-CT-2005-020494).
PY - 2012/11
Y1 - 2012/11
N2 - We used selective agar media for culturing bacteria from the caecum of mice fed a high calorie diet. In addition to the isolation of Enterobacteriaceae growing on a medium containing cholesterol and bile salts, we focused on the characterization of strain CT-m2T, which, based on 16S rDNA analysis, did not appear to correspond to any currently described organisms. The isolate belongs to the Clostridium cluster XIV and is most closely related to members of the Lachnospiraceae, including the genera Anaerostipes, Blautia, Butyrivibrio, Clostridium, Coprococcus, Eubacterium, Robinsoniella, Roseburia, Ruminococcus and Syntrophococcus (≤90 % similarity). Strain CT-m2T is a non-motile Gram-positive rod that does not form spores and has a G + C content of DNA of 48.5 %. Cells grow under strictly anoxic conditions (100 % N 2) and produce acetate and butyrate after growth in reduced WCA broth. In contrast to related species, the new bacterium does not metabolize glucose and is positive for phenylalanine arylamidase, and its major cellular fatty acid is C14:0. Based on phylogenetic and phenotypic studies, the isolate merits recognition as a member of a novel genus and species, for which the name Acetatifactor muris is proposed. The type strain is CT-m2 T (= DSM 23669T = ATCC BAA-2170T).
AB - We used selective agar media for culturing bacteria from the caecum of mice fed a high calorie diet. In addition to the isolation of Enterobacteriaceae growing on a medium containing cholesterol and bile salts, we focused on the characterization of strain CT-m2T, which, based on 16S rDNA analysis, did not appear to correspond to any currently described organisms. The isolate belongs to the Clostridium cluster XIV and is most closely related to members of the Lachnospiraceae, including the genera Anaerostipes, Blautia, Butyrivibrio, Clostridium, Coprococcus, Eubacterium, Robinsoniella, Roseburia, Ruminococcus and Syntrophococcus (≤90 % similarity). Strain CT-m2T is a non-motile Gram-positive rod that does not form spores and has a G + C content of DNA of 48.5 %. Cells grow under strictly anoxic conditions (100 % N 2) and produce acetate and butyrate after growth in reduced WCA broth. In contrast to related species, the new bacterium does not metabolize glucose and is positive for phenylalanine arylamidase, and its major cellular fatty acid is C14:0. Based on phylogenetic and phenotypic studies, the isolate merits recognition as a member of a novel genus and species, for which the name Acetatifactor muris is proposed. The type strain is CT-m2 T (= DSM 23669T = ATCC BAA-2170T).
KW - Acetatifactor muris
KW - Clostridia
KW - Diet-induced obesity
KW - Firmicutes
KW - Mouse intestinal microbiota
UR - http://www.scopus.com/inward/record.url?scp=84871228591&partnerID=8YFLogxK
U2 - 10.1007/s00203-012-0822-1
DO - 10.1007/s00203-012-0822-1
M3 - Article
C2 - 22659832
AN - SCOPUS:84871228591
SN - 0302-8933
VL - 194
SP - 901
EP - 907
JO - Archives of Microbiology
JF - Archives of Microbiology
IS - 11
ER -
