Name: Paraclostridium bifermentans (Weinberg and Séguin 1918) Sasi Jyothsna et al. 2016

Category: Species

Proposed as: comb. nov.

Basonym: "Bacillus bifermentans" Weinberg and Séguin 1918

Etymology: bi.fer.men’tans. L. adv. bis, twice; L. pres. part. fermentans, fermenting; N.L. part. adj. bifermentans, fermenting both carbohydrates and amino acids

Gender: neuter

Type strain: 76; ATCC 638; BCRC 14542; CCRC 14542; CCUG 36626; CIP 104309; DSM 14991; Hall 76; JCM 1386; NCIMB 10716; NCTC 13019

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB075769 Analyse FASTA

Valid publication: Sasi Jyothsna TS, Tushar L, Sasikala C, Ramana CV. Paraclostridium benzoelyticum gen. nov., sp. nov., isolated from marine sediment and reclassification of Clostridium bifermentans as Paraclostridium bifermentans comb. nov. Proposal of a new genus Paeniclostridium gen. nov. to accommodate Clostridium sordellii and Clostridium ghonii. Int J Syst Evol Microbiol 2016; 66:1268-1274.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 3 of the IJSEM. Int J Syst Evol Microbiol 2016; 66:2126-2128.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    "Bacillus bifermentans" Weinberg and Séguin 1918	homotypic synonym, not validly published, basonym of name in Approved Lists
    Clostridium bifermentans (Weinberg and Séguin 1918) Bergey et al. 1923 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Emendations:
  • Kutsuna et al. 2019 Kutsuna R, Miyoshi-Akiyama T, Mori K, Hayashi M, Tomida J, Morita Y, Tanaka K, Kawamura Y. Description of Paraclostridium bifermentans subsp. muricolitidis subsp. nov., emended description of Paraclostridium bifermentans (Sasi Jyothsna et al., 2016), and creation of Paraclostridium bifermentans subsp. bifermentans subsp. nov. Microbiol Immunol 2019; 63:1-10. Oren A, Garrity GM. List of changes in taxonomic opinion no. 30. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:1850-1851.

• Notes:
  • 🥇 Nomenclatural type of the genus Paraclostridium Sasi Jyothsna et al. 2016. Publication: Sasi Jyothsna TS, Tushar L, Sasikala C, Ramana CV. Paraclostridium benzoelyticum gen. nov., sp. nov., isolated from marine sediment and reclassification of Clostridium bifermentans as Paraclostridium bifermentans comb. nov. Proposal of a new genus Paeniclostridium gen. nov. to accommodate Clostridium sordellii and Clostridium ghonii. Int J Syst Evol Microbiol 2016; 66:1268-1274.
  • 😷 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 Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "ht".
  • 🎓 Name mentioned 24 times in PubMed until 2024-03-28.
  • 🧍 According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 2

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Paraclostridium bifermentans subsp. bifermentans (Weinberg and Séguin 1918) Kutsuna et al. 2019	validly published under the ICNP	correct name
    Paraclostridium bifermentans subsp. muricolitidis Kutsuna et al. 2019	validly published under the ICNP	correct name

Parent taxon: Paraclostridium Sasi Jyothsna et al. 2016

Assigned by: Sasi Jyothsna TS, Tushar L, Sasikala C, Ramana CV. Paraclostridium benzoelyticum gen. nov., sp. nov., isolated from marine sediment and reclassification of Clostridium bifermentans as Paraclostridium bifermentans comb. nov. Proposal of a new genus Paeniclostridium gen. nov. to accommodate Clostridium sordellii and Clostridium ghonii. Int J Syst Evol Microbiol 2016; 66:1268-1274.

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Record number: 793944