Name: Syntrophobacter pfennigii Wallrabenstein et al. 1996

Category: Species

Proposed as: sp. nov.

Etymology: pfen.ni’gi.i. N.L. gen. masc. n. pfennigii, of Pfennig, named after Norbert Pfennig, a German microbiologist who contributed substantially to the understanding of syntrophic relationships and of the physiology of sulfate-reducing bacteria

Pronunciation (Latin), gender: syn-tro-p^ho-BAK-ter pfen-NI-gi-i, masculine

Type strain: CIP 105305; DSM 10092; KoProp1

See detailed strain information at

16S rRNA gene: X82875 Analyse FASTA

Effective publication: Wallrabenstein C, Hauschild E, Schink B. Syntrophobacter pfennigii sp. nov., new syntrophically propionate-oxidizing anaerobe growing in pure culture with propionate and sulfate. Arch. Microbiol. 1995; 164:346-352. 🇩🇪

IJSEM list: Anonymous. Validation list no. 58. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1996; 46:836-837.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    "Syntrophobacterium pfennigii" (Wallrabenstein et al. 1996) Galushko and Kuever 2020	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 = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 2 times in PubMed until 2026-06-11.

Parent taxon: Syntrophobacter Boone and Bryant 1984

Assigned by: Wallrabenstein C, Hauschild E, Schink B. Syntrophobacter pfennigii sp. nov., new syntrophically propionate-oxidizing anaerobe growing in pure culture with propionate and sulfate. Arch. Microbiol. 1995; 164:346-352. 🇩🇪

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Record number: 782348