Name: Acetobacter ascendens (Henneberg 1898) Hördt 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-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: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. 🇩🇪

IJSEM list: Oren A, Garrity GM. Validation list no. 194. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2020; 70:4043-4049.

Nomenclatural status: validly published under the ICNP, illegitimate name

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

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

• Synonyms:

  • Name	Kind
    "Mycoderma pasteurianum" Hansen 1879	heterotypic 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 ascendens (Henneberg 1898) Kim et al. 2020	homotypic synonym, validly published under the ICNP
    Acetobacter pasteurianus subsp. paradoxus (Frateur 1950) De Ley and Frateur 1974 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP, distinct rank
    "Bacterium ascendens" Henneberg 1898	homotypic 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 paradoxus" (Frateur 1950) Hördt et al. 2020	heterotypic synonym, not validly published
    Acetobacter pasteurianus subsp. ascendens (Henneberg 1898) De Ley and Frateur 1974 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP, distinct rank
    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.
  • 🎓 Name mentioned 3 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 pathogenicity of other species in the genus.
  • 🧍 Later isonym of Acetobacter ascendens (Henneberg 1898) Kim et al. 2020. 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. 🇰🇷
  • 🧍 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: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. 🇩🇪

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Record number: 11011