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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Firmicutes => Bacilli => Lactobacillales => Streptococcaceae => Streptococcus => Streptococcus hansenii Holdeman & Moore 1974.
Moved to Ruminococcus hansenii (Holdeman and Moore 1974) Ezaki et al. 1994, then to Blautia hansenii (Holdeman and Moore
1974) Liu et al. 2008
Moved to Ruminococcus hansenii (Holdeman and Moore 1974) Ezaki et al. 1994, then to Blautia hansenii (Holdeman and Moore
1974) Liu et al. 2008
Gram-positive, 1.6 to 2.3 μm cocci, with rounded or slightly tapered ends, grouped in
pairs or chains of pairs.
pairs or chains of pairs.
Non-hemolytic, 0.5 to 2 mm in diameter, lenticular, and translucent or white
with translucent edges colonies (up to 5 days incubation). Grow at 37 to 45 °C (no
growth below 25 °C), strictly anaerobic.
Growth media: Blood agar, BHI agar, Chopped meat medium with 1% glucose,
PYG-MEDIUM (modified).
with translucent edges colonies (up to 5 days incubation). Grow at 37 to 45 °C (no
growth below 25 °C), strictly anaerobic.
Growth media: Blood agar, BHI agar, Chopped meat medium with 1% glucose,
PYG-MEDIUM (modified).
Isolated from human faeces.
Unknown (none) - human fecal flora.
- Holdeman LV & Moore WEC: New genus, Coprococcus, twelve new species, and emended descriptions of four previously
described species of bacteria from human feces. International Journal of Systematic Bacteriology, 1974, 24, 260-277. - Skerman VB, et al. Approved lists of bacterial names. Int. J. Syst. Bacteriol. 30: 225-420, 1980.
- Bergey’s Manual of Determinative Bacteriology, 9th ed., 1994.
- TAKAYUKI EZAKI, NA LI, YASUHIRO HASHIMOTO, HIROAKI MIURA, & HIROYUKI YAMAMOTO: 16s Ribosomal DNA Sequences
of Anaerobic Cocci and Proposal of Ruminococcus hansenii comb. nov. and Ruminococcus productus comb. nov.
International Journal of Systematic Bacteriology, Jan. 1994, p. 130-136. - LILLIAN V. HOLDEMAN and W. E. C. MOORE: New Genus, Coprococcus, Twelve New Species, and Emended Descriptions of
Four Previously Described Species of Bacteria from Human Feces. INTERNATIONAL JOURNAL of SYSTEMATIC
BACTERIOLOGY April 1974, p. 260-277
Acid produced from glucose, lactose & raffinose; not produced from inulin, ribose,
sorbitol, trehalose & salicin.
Hydrolysis of hippurate, starch, lecithinase & growth with 6.5% NaCl = negative.
Voges-Proskauer & hydrolysis of esculin = variable
sorbitol, trehalose & salicin.
Hydrolysis of hippurate, starch, lecithinase & growth with 6.5% NaCl = negative.
Voges-Proskauer & hydrolysis of esculin = variable
(c) Costin Stoica
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