| Ellagibacter | |
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| Genus: | Ellagibacter Beltrán et al. 2018 |
| Type species | |
| Ellagibacter isourolithinifaciens Beltrán et al. 2018 | |
Ellagibacter is a genus of Gram-positive and strictly anaerobic bacteria in the family Eggerthellaceae, within the phylum Actinomycetota. The type and only species, Ellagibacter isourolithinifaciens , was isolated from a fecal sample of a healthy human. [1]
The genus name Ellagibacter is derived from modern Latin: acidum ellagicum (ellagic acid) and bacter (rod), meaning "ellagic acid-transforming rod."
Members of this genus are obligate anaerobes that play a role in polyphenol metabolism in the human gut microbiome. E. isourolithinifaciens is known to convert ellagic acid into isourolithin A, a urolithin metabolite with potential health benefits including anti-inflammatory and antioxidant effects. [1] [2]
As of 2025, the genus Ellagibacter includes only one validly published species: