Petra Louis, Galiana Lo, Timo Kramer, Sylvia Duncan

Research output: Chapter in Book/Report/Conference proceedingEntry for encyclopedia/dictionary


Flin.ti.bac'ter. L. masc. n. bacter rod; N.L. masc. n. Flintibacter rod-shaped bacterium named after Harry J. Flint, a microbiologist from Aberdeen, UK, who dedicated his career to the investigation of gut bacteria, especially butyrate producers and their role in health and disease.

Firmicutes / Clostridia / Clostridiales / Ruminococcaceae / Flintibacter

Cells are small irregular needle-like rods that can form long filaments. Usually gives a Gram-negative-staining reaction. Endospores are not observed, and cells are nonmotile. Strictly anaerobic. Optimum growth between 30 and 40°C and in the presence of NaCl up to 1%. Oxidase- and catalase-negative. Grows on Wilkins-Chalgren medium and can utilize several carbon sources. Can metabolize the amino acids glutamine and glutamate, but fails to grow on leucine, asparagine, lysine, arginine, and aspartic acid. Grows in the presence of glucosamine and raffinose. The end products of fermentation are formate, acetate, and butyrate. The main cellular fatty acids are iso-C17:1/anteiso-C17:1 (16.1%), iso-C19:1(14.8%), C18:1 ω9c (13.5%), C12:0 (12.2%), C14:0 (11.4%), and C16:0 (11.2%). The nearest phylogenetic neighbors are Intestinimonas butyriciproducens, Pseudoflavonifractor capillosus, Flavonifractor plautii, Lawsonibacter asaccharolyticus, and Clostridium viride. The genus accommodates the species Flintibacter butyricus. Isolated from the cecal contents of a wild-type mouse.

DNA G + C content (mol%): 58 (draft genome).

Type species: Flintibacter butyricus Lagkouvardos, Pukall, Abt, Foesel, Meier-Kolthoff, Kumar, et al. 2016c, 4301VP (Effective publication: Lagkouvardos, Pukall, Abt, Foesel, Meier-Kolthoff, Kumar, et al., 2016b, 12).
Original languageEnglish
Title of host publicationBergey’s Manual of Systematics of Archaea and Bacteria
Publication statusPublished - Oct 2019


  • Firmicutes
  • Clostridia
  • Clostridiales
  • Ruminococcaceae


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