Name: Lactosphaera pasteurii (Schink 1985) Janssen et al. 1995

Category: Species

Proposed as: comb. nov.

Basonym: Ruminococcus pasteurii Schink 1985

Etymology: pas.teu’ri.i. N.L. gen. masc. n. pasteurii, of Pasteur, referring to Louis Pasteur, who probably first enriched and observed this bacterium during studies on tartrate fermentation

Pronunciation (Latin), gender: … pas-TE͡U-ri-i, feminine

Type strain: ATCC 35945; CCUG 37395; CIP 104580; DSM 2381; KoTa2

Conduct genome-based taxonomy at

16S rRNA gene: X87150 Analyse FASTA

Valid publication: Janssen PH, Evers S, Rainey FA, Weiss N, Ludwig W, Harfoot CG, Schink B. Lactosphaera gen. nov., a new genus of lactic acid bacteria, and transfer of Ruminococcus pasteurii Schink 1984 to Lactosphaera pasteurii comb. nov. Int J Syst Bacteriol 1995; 45:565-571. 🇦🇺

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 45, part 3 of the IJSB. Int J Syst Bacteriol 1995; 45:881.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Trichococcus pasteurii (Schink 1985) Liu et al. 2002

Risk group: 1

• Synonyms:

  • Name	Kind
    Ruminococcus pasteurii Schink 1985	homotypic synonym, validly published under the ICNP
    Trichococcus pasteurii (Schink 1985) Liu et al. 2002	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Lactosphaera Janssen et al. 1995. Publication: Janssen PH, Evers S, Rainey FA, Weiss N, Ludwig W, Harfoot CG, Schink B. Lactosphaera gen. nov., a new genus of lactic acid bacteria, and transfer of Ruminococcus pasteurii Schink 1984 to Lactosphaera pasteurii comb. nov. Int J Syst Bacteriol 1995; 45:565-571. 🇦🇺
  • ❗ Lactosphaera pasteurii is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Lactosphaera.
  • 😷 The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. 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 8 times in PubMed until 2025-06-04.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.

Parent taxon: Lactosphaera Janssen et al. 1995

Assigned by: Janssen PH, Evers S, Rainey FA, Weiss N, Ludwig W, Harfoot CG, Schink B. Lactosphaera gen. nov., a new genus of lactic acid bacteria, and transfer of Ruminococcus pasteurii Schink 1984 to Lactosphaera pasteurii comb. nov. Int J Syst Bacteriol 1995; 45:565-571. 🇦🇺

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Record number: 777430