Species ***Clostridium* *symbiosum***

Name: Clostridium symbiosum (Stevens 1956) Kaneuchi et al. 1976 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Bacteroides symbiosus" Stevens 1956

Etymology: sym.bi.o’sum. Gr. masc./fem. adj. symbios, a companion; N.L. neut. adj. symbiosum, living together with, symbiotic (refers to its use as a symbiote for cultivation of Entamoeba histolytica)

Gender: neuter

Type strain: ATCC 14940; DSM 934; JCM 1297

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M59112 Analyse FASTA

Effective publication: Kaneuchi C, Watanabe K, Terada A, Benno Y, Mitsuoka T. Taxonomic study of Bacteroides clostridiiformis subsp. clostridiiformis (Burri and Ankersmit) Holdeman and Moore and of related organisms: proposal of Clostridium clostridiiforme (Burri and Andersmit) comb. nov. and Clostridium symbiosum (Stevens) comb. nov. International Journal of Systematic Bacteriology 1976; 26:195-204.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

Synonyms:

Name	Kind
"Bacteroides symbiosus" Stevens 1956	homotypic synonym, not validly published, basonym of name in Approved Lists

Notes:
- 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - 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. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2. — 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 125 times in PubMed until 2024-03-27.
- 🧍 According to Ludwig et al. (2021), this "species may be reclassified among 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.

Parent taxon: Clostridium Prazmowski 1880 (Approved Lists 1980)

Assigned by: Kaneuchi C, Watanabe K, Terada A, Benno Y, Mitsuoka T. Taxonomic study of Bacteroides clostridiiformis subsp. clostridiiformis (Burri and Ankersmit) Holdeman and Moore and of related organisms: proposal of Clostridium clostridiiforme (Burri and Andersmit) comb. nov. and Clostridium symbiosum (Stevens) comb. nov. International Journal of Systematic Bacteriology 1976; 26:195-204.

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Record number: 774995

This LPSN page was printed on 2025-04-29 23:36:12

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Species Clostridium symbiosum

Species ***Clostridium* *symbiosum***