Gordonibacter

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Abstract Gor.do.ni.bac'ter. N.L. masc. n. bacter , a rod; N.L. masc. n. Gordonibacter , a rod named after Jeffrey I. Gordon, the Dr. Robert J. Glaser Distinguished University Professor and Director of the Center for Genome Sciences at Washington University School of Medicine, St. Louis, MO, USA; N.L. masc. n. bacter a rod; N.L. masc. n. Gordonibacter a rod named after Jeffrey I. Gordon. The genus Gordonibacter accommodates bacteria species that are part of the human gut microbiota and have the ability to metabolize dietary polyphenols such as ellagitannins into bioactive metabolites known as urolithins. Cells of this genus are Gram‐positive, obligatorily anaerobic, motile, non‐spore‐forming, and short‐rod shaped. Often, one cell end appears conical in shape with a pronounced apex ending and with subpolar flagellum insertion. Cells are oxidase‐negative, catalase‐positive, and arginine dihydrolase‐positive, and nitrate is not reduced. They are mesophilic. Growth is generally slow and can be enhanced by the supplementation of the basal medium with 1% arginine hydrochloride (w/v). The major respiratory lipoquinone present is menaquinone 6. Cellular fatty acids consist mainly (70–90%) of saturated fatty acids (predominantly C 14 , C 15 , and C 16 ) and monounsaturated fatty acids (mainly C 18:1 ω9 c ). The major polar lipids are phosphatidylglycerol, diphosphatidylglycerol, and four to six glycolipids. DNA G + C content (mol%) : 65.1–66.4. The known habitat is the human intestine. Type species : Gordonibacter pamelaeae Würdemann et al. 2009 VP . Taxonomic and Nomenclature Notes According to the List of Prokaryotic names with Standing in Nomenclature (LPSN), the taxonomic status of the genus Gordonibacter is: correct name (last update, February 2025) * . LPSN classification: Bacteria / Bacillati / Actinomycetota / Coriobacteriia / Eggerthellales / Eggerthellaceae / Gordonibacter The genus Gordonibacter can also be recovered in the Genome Taxonomy Database (GTDB) as g__Gordonibacter (version v220) ** . GTDB classification: d__Bacteria / p__Actinomycetota / c__Coriobacteriia / o__Coriobacteriales / f__Eggerthellaceae / g__Gordonibacter * Meier‐Kolthoff et al. ( 2022 ). Nucleic Acids Res , 50 , D801 – D807 ; DOI: 10.1093/nar/gkab902 ** Parks et al. ( 2022 ). Nucleic Acids Res , 50 , D785 – D794 ; DOI: 10.1093/nar/gkab776

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