Parabacteroides

Parabacteroides
	Parabacteroides distasonis, a species of Parabacteroides within the human gut microbiome
Scientific classification
Domain:	Bacteria
Kingdom:	Pseudomonadati
Phylum:	Bacteroidota
Class:	Bacteroidia
Order:	Bacteroidales
Family:	Tannerellaceae
Genus:	Parabacteroides; Sakamoto and Benno 2006
Type species
	Parabacteroides distasonis;
Species
	P. acidifaciens; P. bouchesdurhonensis>; P. chartae; P. chinchillae; P. chongii; P. distasonis; P. faecavium; P. faecis; P. goldsteinii; P. gordonii; P. hominis; P. intestinavium; P. intestinigallinarum; P. intestinipullorum; P. johnsonii; P. massiliensis; P. merdae; P. pacaensis; P. pekinense; P. provencensis; P. timonensis

Parabacteroides is a Gram-negative, anaerobic, non-spore-forming genus from the family Tannerellaceae.

First isolated from fecal specimen in 1933, type strain Parabacteroides distasonis was originally classified under the name Bacteroides distasonis. The strain was re-classified to form the new genus Parabacteroides in 2006. Parabacteroides currently comprise 21 phylogenetically, ecologically, and metabolically diverse species, 11 of which are listed in the taxonomic database List of Prokaryotic names with Standing in Nomenclature (LPSN) as validly published.

Within the Parabacteroides genus, species P. distasonis and P. goldsteinii have been associated with beneficial effects in human health, relating to their integral role in gut microbiota along the digestive tract.