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Scientific classification
Domain: Bacteria
Phylum: Firmicutes
Class: Clostridia
Order: Clostridiales
Family: Peptococcaceae
Genus: Peptococcus
Kluyver and van Niel 1936

Peptococcus is a Gram-positive bacterium genus in the family Peptococcaceae.

Species in the genus are part of the human microbiome, especially in the bacteria that form the gut flora. They are part of the flora of the mouth, upper respiratory tract and large intestine.

Mezlocillin is an antibiotic that is effective against Peptococcus species.

Peptococcus magnus is a human pathogen.[1]

See also[edit]


  1. ^ Bourgault, AM; Rosenblatt, JE; Fitzgerald, RH (1980). "Peptococcus magnus: A significant human pathogen". Annals of internal medicine 93 (2): 244–248. doi:10.7326/0003-4819-93-2-244. PMID 7406374. 

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