Species Clostridium sporosphaeroides

Name: Clostridium sporosphaeroides Soriano and Soriano 1948 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: spo.ro.sphaer.o.i’des. Gr. masc. n. sporos, seed; Gr. fem. n. sphaîra, sphere; Gr. neut. adj. suff. -eides, ressembling, similar; from Gr. neut. n. eîdos, that which is seen, form, shape, figure; N.L. neut. adj. sporosphaeroides, having spherical spores

Pronunciation (Latin), gender: … spo-ro-sp^ha͡er-o-I-des, neuter

Type strain: ATCC 25781; DSM 1294; LMG 28907; VPI 4527

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X66002 Analyse FASTA

Effective publication: Soriano S, Soriano A. Nueva bacteria anaerobia productora de una alteracion en sordinas envasadas. Revista de la Asocion Argentina de Dietologia 1948; 6:36-41.

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: synonym (and not recommended for medical use)

Correct name: Faecalispora sporosphaeroides (Soriano and Soriano 1948) Rios-Galicia et al. 2024

Risk group: 1

Synonyms:

Name	Kind
Faecalispora sporosphaeroides (Soriano and Soriano 1948) Rios-Galicia et al. 2024	homotypic synonym, validly published under the ICNP

Notes:
- ❗ Clostridium sporosphaeroides 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 Clostridium.
- 😷 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 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 genus.
- 🧍 According to Ludwig et al. (2021), this "species needs reclassification as for C. jeddahense". 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. 🇪🇸
- 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683. 🇺🇸

Parent taxon: Clostridium Prazmowski 1880 (Approved Lists 1980)

Assigned by: Soriano S, Soriano A. Nueva bacteria anaerobia productora de una alteracion en sordinas envasadas. Revista de la Asocion Argentina de Dietologia 1948; 6:36-41.

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Record number: 774987

This LPSN page was printed on 2026-02-17 05:13:49

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Species Clostridium sporosphaeroides