Name: Caldicellulosiruptor acetigenus (Nielsen et al. 1994) Onyenwoke et al. 2006

Category: Species

Proposed as: comb. nov.

Basonym: Thermoanaerobium acetigenum Nielsen et al. 1994

Etymology: a.ce.ti’ge.nus. L. neut. n. acetum, vinegar; L. inf. v. genere, to produce; N.L. masc. adj. acetigenus, vinegar- or acetic acid-producing

Pronunciation, gender: … a-ke-TI-ge-nus, masculine

Type strain: ATCC BAA-1149; DSM 7040; X6B

Conduct genome-based taxonomy at

16S rRNA gene: AY772476 Analyse FASTA

Valid publication: Onyenwoke RU, Lee YJ, Dabrowski S, Ahring BK, Wiegel J. Reclassification of Thermoanaerobium acetigenum as Caldicellulosiruptor acetigenus comb. nov. and emendation of the genus description. Int J Syst Evol Microbiol 2006; 56:1391-1395. 🇺🇸

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 56, part 6 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:2029-2030.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Caldicellulosiruptor kristjanssonii Bredholt et al. 1999	heterotypic synonym, validly published under the ICNP
    "Anaerocellum acetigenus subsp. kristjanssonii" (Bredholt et al. 1999) Bing 2024	heterotypic synonym, not validly published, distinct rank
    Caldicellulosiruptor lactoaceticus Mladenovska et al. 1997	heterotypic synonym, validly published under the ICNP
    "Anaerocellum acetigenus" (Nielsen et al. 1994) Bing 2024	homotypic synonym, not validly published
    Thermoanaerobium acetigenum Nielsen et al. 1994	homotypic synonym, validly published under the ICNP
    "Anaerocellum acetigenus subsp. lactoaceticus" (Mladenovska et al. 1997) Bing 2024	heterotypic synonym, not validly published, distinct rank

• Notes:
  • ⏰ According to Habib et al. (2021), this species is an earlier heterotypic synonym of Caldicellulosiruptor kristjanssonii Bredholt et al. 1999. Publication: Habib N, Rao MPN, Xiao M, Jan SA, Li WJ. Genome-based reclassification of Caldicellulosiruptor lactoaceticus and Caldicellulosiruptor kristjanssonii as later heterotypic synonyms of Caldicellulosiruptor acetigenus. Int J Syst Evol Microbiol 2021; 71:4927. 🇨🇳
  • ⏰ According to Habib et al. (2021), this species is an earlier heterotypic synonym of Caldicellulosiruptor lactoaceticus Mladenovska et al. 1997. Publication: Habib N, Rao MPN, Xiao M, Jan SA, Li WJ. Genome-based reclassification of Caldicellulosiruptor lactoaceticus and Caldicellulosiruptor kristjanssonii as later heterotypic synonyms of Caldicellulosiruptor acetigenus. Int J Syst Evol Microbiol 2021; 71:4927. 🇨🇳
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 71, part 8 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:5057.
  • 😷 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 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 5 times in PubMed until 2025-06-04.
  • 🧍 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: Caldicellulosiruptor Rainey et al. 1995

Assigned by: Onyenwoke RU, Lee YJ, Dabrowski S, Ahring BK, Wiegel J. Reclassification of Thermoanaerobium acetigenum as Caldicellulosiruptor acetigenus comb. nov. and emendation of the genus description. Int J Syst Evol Microbiol 2006; 56:1391-1395. 🇺🇸

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Record number: 774342