Name: "Microcyclus major" Gromov 1963

Category: Species

Proposed as: sp. nov.

Etymology: ma.jor. L. comp. masc./fem. adj. maior, larger; L. comp. masc./fem. adj. major, larger (comp. of magnus) [probably better: maior]

Gender: masculine

Type strain: ATCC 29496; DSM 103; LMG 13163; VKM B-859

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M62787 Analyse FASTA

Original publication: Gromov BV. A new bacterium of the genus Microcyclus. Doklady Akademii Nauk SSSR 1963; 152:733-734.

Nomenclatural status: not validly published, basonym of name in Approved Lists

Taxonomic status: synonym (and no standing)

Correct name: Flectobacillus major (Gromov 1963) Larkin et al. 1977 (Approved Lists 1980)

Risk group: 1

• Synonyms:

  • Name	Kind
    Flectobacillus major (Gromov 1963) Larkin et al. 1977 (Approved Lists 1980)	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 = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No".

Parent taxon: Microcyclus Ørskov 1928 (Approved Lists 1980)

Assigned by: Gromov BV. A new bacterium of the genus Microcyclus. Doklady Akademii Nauk SSSR 1963; 152:733-734.

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Record number: 778140