Name: Acetivibrio ethanolgignens Robinson and Ritchie 1981

Category: Species

Proposed as: sp. nov.

Etymology: e.tha.nol.gig’nens. N.L. neut. n. ethanol, ethanol; L. pres. part. gignens, giving birth to, producing; N.L. part. adj. ethanolgignens, producing ethanol

Gender: masculine

Type strain: 77-6; ATCC 33324; DSM 3005; LMG 7055

See detailed strain information at

16S rRNA gene: FR749897 Analyse FASTA

Valid publication: Robinson IM, Ritchie AE. Emendation of Acetivibrio and description of Acetivibrio ethanolgignens, a new species from the colons of pigs with dysentery. Int. J. Syst. Bacteriol. 1981; 31:333-338.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    "Acetanaerobacter ethanolgignens" (Robinson and Ritchie 1981) Zou et al. 2021	homotypic synonym, not validly published

• Notes:
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 2 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2, note = "PV". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "t".
  • 🎓 Name mentioned 7 times in PubMed until 2024-03-28.
  • 🧍 According to Ludwig et al. (2021), this "species affiliates away from the type species and may be classified as a new genus within the Lachnospiraceae". Publication: Ludwig W, Viver T, Westram R, Francisco Gago J, Bustos-Caparros E, Knittel K, Amann R, Rossello-Mora R. Release LTP_12_2020, featuring a new ARB alignment and improved 16S rRNA tree for prokaryotic type strains. Syst Appl Microbiol 2021; 44:126218.
  • 🧍 Yarza et al. (2013) expected for accession FR749897, originating from the alleged type-strain deposit DSM 3005, an affiliation with Ruminococcaceae (Clostridia) but observed an affiliation with Lachnospiraceae (Clostridia) and 82% similarity against Ruminococcus flavefaciens. Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73.
  • 🧍 The 16S rRNA gene sequence of the type strain shows an unexpected affiliation with the family Lachnospiraceae (82% similarity against Ruminococcus flavefaciens). Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73.

Parent taxon: Acetivibrio Patel et al. 1980

Assigned by: Robinson IM, Ritchie AE. Emendation of Acetivibrio and description of Acetivibrio ethanolgignens, a new species from the colons of pigs with dysentery. Int. J. Syst. Bacteriol. 1981; 31:333-338.

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Record number: 772482