Name: Asaccharospora irregularis (Choukévitch 1911) Gerritsen et al. 2014

Category: Species

Proposed as: comb. nov.

Basonym: "Bacillus irregularis" Choukévitch 1911

Etymology: ir.re.gu.lar’is. L. masc./fem. adj. irregularis, irregular, referring to pleomorphic, irregular cells

Gender: feminine

Type strain: ATCC 25756; DSM 2635; JCM 1425

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X73447 Analyse FASTA

Valid publication: Gerritsen J, Fuentes S, Grievink W, van Niftrik L, Tindall BJ, Timmerman HM, Rijkers GT, Smidt H. Characterization of Romboutsia ilealis gen. nov., sp. nov., isolated from the gastro-intestinal tract of a rat, and proposal for the reclassification of five closely related members of the genus Clostridium into the genera Romboutsia gen. nov., Intestinibacter gen. nov., Terrisporobacter gen. nov. and Asaccharospora gen. nov. Int J Syst Evol Microbiol 2014; 64:1600-1616.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 64, part 5 of the IJSEM. Int J Syst Evol Microbiol 2014; 64:2509-2511.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Clostridium irregulare corrig. (Choukévitch 1911) Prévot 1938 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Clostridium irregularis (Choukévitch 1911) Prévot 1938 (Approved Lists 1980)	homotypic synonym, inaccurate spelling
    "Bacillus irregularis" Choukévitch 1911	homotypic synonym, not validly published, basonym of name in Approved Lists

• Notes:
  • 🥇 Nomenclatural type of the genus Asaccharospora Gerritsen et al. 2014. Publication: Gerritsen J, Fuentes S, Grievink W, van Niftrik L, Tindall BJ, Timmerman HM, Rijkers GT, Smidt H. Characterization of Romboutsia ilealis gen. nov., sp. nov., isolated from the gastro-intestinal tract of a rat, and proposal for the reclassification of five closely related members of the genus Clostridium into the genera Romboutsia gen. nov., Intestinibacter gen. nov., Terrisporobacter gen. nov. and Asaccharospora gen. nov. Int J Syst Evol Microbiol 2014; 64:1600-1616.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 1 time in PubMed until 2024-03-28.

Parent taxon: Asaccharospora Gerritsen et al. 2014

Assigned by: Gerritsen J, Fuentes S, Grievink W, van Niftrik L, Tindall BJ, Timmerman HM, Rijkers GT, Smidt H. Characterization of Romboutsia ilealis gen. nov., sp. nov., isolated from the gastro-intestinal tract of a rat, and proposal for the reclassification of five closely related members of the genus Clostridium into the genera Romboutsia gen. nov., Intestinibacter gen. nov., Terrisporobacter gen. nov. and Asaccharospora gen. nov. Int J Syst Evol Microbiol 2014; 64:1600-1616.

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Record number: 791851