Name: Acetobacter ascendens (Henneberg 1898) Kim et al. 2020

Category: Species

Proposed as: comb. nov.

Basonym: "Bacterium ascendens" Henneberg 1898

Etymology: a.scen’dens. L. masc. part. adj. ascendens, ascending, climbing

Pronunciation (Latin), gender: a-ke-to-BAK-ter a-SKEN-dens, masculine

Type strain: LMD 51.1; LMG 1590; NCCB 51001

Conduct genome-based taxonomy at

16S rRNA gene: GU205099 Analyse FASTA

Effective publication: Kim KH, Cho GY, Chun BH, Weckx S, Moon JY, Yeo SH, Jeon CO. Corrigendum to "Acetobacter oryzifermentans sp. nov., isolated from Korean traditional vinegar and reclassification of the type strains of Acetobacter pasteurianus subsp. ascendens (Henneberg 1898) and Acetobacter pasteurianus subsp. paradoxus (Frateur 1950) as Acetobacter ascendens sp. nov., comb. nov." [Syst. Appl. Microbiol. 41 (2018) 324-332]. Syst Appl Microbiol 2020; 43:126042. 🇰🇷

IJSEM list: Oren A, Garrity GM. Validation list no. 193. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2020; 70:2960-2966.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Acetobacter pasteurianus (Hansen 1879) Beijerinck and Folpmers 1916 (Approved Lists 1980)

Risk group: 1

• Synonyms:

  • Name	Kind
    "Acetobacter paradoxus" (Frateur 1950) Hördt et al. 2020	heterotypic synonym, not validly published
    "Mycoderma pasteurianum" Hansen 1879	heterotypic synonym, not validly published, basonym of name in Approved Lists
    "Acetobacter paradoxum" Frateur 1950	heterotypic synonym, not validly published, basonym of name in Approved Lists
    Acetobacter pasteurianus subsp. paradoxus (Frateur 1950) De Ley and Frateur 1974 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP, distinct rank
    Acetobacter ascendens (Henneberg 1898) Hördt et al. 2020	homotypic synonym, validly published under the ICNP, illegitimate name
    Acetobacter pasteurianus subsp. ascendens (Henneberg 1898) De Ley and Frateur 1974 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP, distinct rank
    "Bacterium ascendens" Henneberg 1898	homotypic synonym, not validly published, basonym of name in Approved Lists
    Acetobacter peroxydans Visser't Hooft 1925 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Acetobacter pasteurianus (Hansen 1879) Beijerinck and Folpmers 1916 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Gossele et al. (1983), this species is a later heterotypic synonym of "Mycoderma pasteurianum" Hansen 1879. Publication: Gossele F, Swings J, Kersters K, Pauwels P, De Ley J. Numerical Analysis of Phenotypic Features and Protein Gel Electrophoregrams of a Wide Variety of Acetobacter strains. Proposal for the Improvement of the Taxonomy of the Genus Acetobacter Beijerinck 1898, 215. Syst Appl Microbiol 1983; 4:338-368.
  • ⏲ According to Gossele et al. (1983), this species is a later heterotypic synonym of Acetobacter pasteurianus (Hansen 1879) Beijerinck and Folpmers 1916 (Approved Lists 1980). Publication: Gossele F, Swings J, Kersters K, Pauwels P, De Ley J. Numerical Analysis of Phenotypic Features and Protein Gel Electrophoregrams of a Wide Variety of Acetobacter strains. Proposal for the Improvement of the Taxonomy of the Genus Acetobacter Beijerinck 1898, 215. Syst Appl Microbiol 1983; 4:338-368.
  • ❗ Acetobacter ascendens 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 Acetobacter.
  • 😷 The risk group for Germany has been imported on 2026-08-13. 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 4 times in PubMed until 2026-06-11.
  • 🙅 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 pathogenicity of other species in the genus.
  • 🧍 See also Kim et al. (2018). Publication: Kim KH, Cho GY, Chun BH, Weckx S, Moon JY, Yeo SH, Jeon CO. Acetobacter oryzifermentans sp. nov., isolated from Korean traditional vinegar and reclassification of the type strains of Acetobacter pasteurianus subsp. ascendens (Henneberg 1898) and Acetobacter pasteurianus subsp. paradoxus (Frateur 1950) as Acetobacter ascendens sp. nov., comb. nov. Syst Appl Microbiol 2018; 41:324-332. 🇰🇷

Parent taxon: Acetobacter Beijerinck 1898 (Approved Lists 1980)

Assigned by: Kim KH, Cho GY, Chun BH, Weckx S, Moon JY, Yeo SH, Jeon CO. Corrigendum to "Acetobacter oryzifermentans sp. nov., isolated from Korean traditional vinegar and reclassification of the type strains of Acetobacter pasteurianus subsp. ascendens (Henneberg 1898) and Acetobacter pasteurianus subsp. paradoxus (Frateur 1950) as Acetobacter ascendens sp. nov., comb. nov." [Syst. Appl. Microbiol. 41 (2018) 324-332]. Syst Appl Microbiol 2020; 43:126042. 🇰🇷

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Record number: 7864