Name: Azomonas macrocytogenes (Jensen 1955) New and Tchan 1982

Category: Species

Proposed as: comb. nov.

Basonym: Azotobacter macrocytogenes Jensen 1955 (Approved Lists 1980)

Etymology: ma.cro.cy.to.ge.nes. Gr. masc. adj. makros, length, large; Gr. neut. n. kytos, hollow, vessel, jar and, in biology, a cell; Gr. suff. -genes, producing; from Gr. ind. v. gennaô, to produce; N.L. part. adj. macrocytogenes, large cell producing

Gender: feminine

Type strain: ATCC 12335; CIP 103928; DSM 721; LMG 1266; NCAIM B.01790; NCIB 8700; NCIMB 8700; O of Jensen; WR 111

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: EF100146 Analyse FASTA

Valid publication: New PB, Tchan YT. Azomonas macrocytogenes (ex Baillie, Hodgkiss, and Norris 1962, 118) nom. rev. Int. J. Syst. Bacteriol. 1982; 32:381-382.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Azotobacter macrocytogenes Jensen 1955 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Azomonotrichon macrocytogenes (Jensen 1955) Thompson and Skerman 1981	homotypic synonym, validly published under the ICNP

• Notes:
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 8 times in PubMed until 2024-03-27.
  • 🧍 New and Tchan 1982 propose Azomonas macrocytogenes as a nomen revictum, basonym: "Azomonas macrocytogenes" (Jensen 1955) Baillie et al. 1962. Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592.

Parent taxon: Azomonas Winogradsky 1938 (Approved Lists 1980)

Assigned by: New PB, Tchan YT. Azomonas macrocytogenes (ex Baillie, Hodgkiss, and Norris 1962, 118) nom. rev. Int. J. Syst. Bacteriol. 1982; 32:381-382.

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Record number: 773584