Coprococcus eutactus
Scientific classification
Domain:
Bacteria
Phylum:
Bacillota
Class:
Clostridia
Order:
Eubacteriales
Family:
Lachnospiraceae
Genus:
Coprococcus
Species:
C. eutactus
Binomial name
Coprococcus eutactus
Holdeman & Moore, 1974

Coprococcus (ATCC 27759) is a genus of anaerobic cocci which are all part of the human faecal flora, but rarely seen in human clinical specimens.[1] "Coprococcus includes those gram-positive, anaerobic cocci that actively ferment carbohydrates, producing butyric and acetic acids with formic or propionic and/or lactic acids. Fermentable carbohydrates are either required or are highly stimulatory for growth and continued subculture." - Lillian V. Holdeman & W. E. C. Moore. The genus is bio-chemically closely related to Ruminococcus, and phylogenetically to the genus Lachnospira.

Coprococcus eutactus is an obligately anaerobic, nonmotile, gram-positive coccus occurring in pairs or chains of pairs. Cells may lose colour readily and acquire a slightly elongate shape in a medium containing a fermentable carbohydrate, but are normally round, and 0.7 to 1.3 µm in diameter.[2]

Coprococcus may be used as a microbial biomarker to assess the health of the human gastro-intestinal tract. Gut microorganisms maintain gastro-intestinal health and the mounting evidence of gastro-intestinal problems in autistic children makes a link between autism and intestinal microbiota highly probable, but the paucity of data on intestinal microflora means a definite link has not yet been demonstrated. Early studies overlooked potentially beneficial gut flora missing in autistic children.[3]

Coprococcus, specifically Coprococcus eutactus, may impact on the desire to exercise by augmenting dopamine activity during physical activity.[4]

Coprococcus species

  • C. catus Holdeman & Moore
  • C. comes Holdeman & Moore

Etymology

'kopros' - excrement, faeces; 'kokkos' - berry; 'Coprococcus' - faecal coccus
'eutaktos' - orderly, well-disciplined (referring to the uniform reactions of the different strains)

References

  1. ↑ Holdeman, L. V.; Moore, W. E. C. (1974). "New Genus, Coprococcus, Twelve New Species, and Emended Descriptions of Four Previously Described Species of Bacteria from Human Feces". International Journal of Systematic Bacteriology. 24 (2): 260–277. doi:10.1099/00207713-24-2-260.
  2. ↑ "Coprococcus".
  3. ↑ "Technology - Prevotella and Coprococcus as human gut health enhancers. Specific case example: Autism | Arizona Technology Enterprises". Archived from the original on 2015-09-24. Retrieved 2015-10-02.
  4. ↑ Dohnalová, Lenka; Lundgren, Patrick (14 Dec 2022). "A microbiome-dependent gut–brain pathway regulates motivation for exercise". Nature. 612 (7941): 739–747. doi:10.1038/s41586-022-05525-z. PMID 36517598. S2CID 254729201. Retrieved 2022-12-15.
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