Name: Cystobacter minus (Krzemieniewska and Krzemieniewski 1926) McCurdy 1970 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Polyangium minus" Krzemieniewska and Krzemieniewski 1926

Etymology: mi’nus. L. comp. neut. adj. minus, smaller. The epithet minus (sic) is in the neuter gender, but the genus name Cystobacter is in the masculine gender! The correct epithet should be minor (comparative of parvus, small)

Gender: masculine

Type strain: Cb m2; DSM 14751; JCM 12627; Windsor M-307

See detailed strain information at

16S rRNA gene: AJ233903 Analyse FASTA

Effective publication: McCurdy HD. Studies on the taxonomy of the Myxobacterales. II. Polyangium and the demise of the Sporangiaceae. International Journal of Systematic Bacteriology 1970; 20:283-296.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: inaccurate spelling

Taxonomic status: misspelling

Correct name: Cystobacter minor corrig. (Krzemieniewska and Krzemieniewski 1926) McCurdy 1970 (Approved Lists 1980)

Risk group: 1

• Synonyms:

  • Name	Kind
    Archangium minus (Krzemieniewska and Krzemieniewski 1926) Lang et al. 2015	homotypic synonym, validly published under the ICNP
    "Polyangium minus" Krzemieniewska and Krzemieniewski 1926	homotypic synonym, not validly published, basonym of name in Approved Lists
    Cystobacter minor corrig. (Krzemieniewska and Krzemieniewski 1926) McCurdy 1970 (Approved Lists 1980)	corrected spelling of name, 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". — 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 2 times in PubMed until 2024-03-27.
  • 🧍 According to Yarza et al. (2013), an "un-sequenced orphan species where descriptions, illustrations or dead preserved material serve as the type. Strain designation appears to refer to herbarium material.". Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73.
  • 🧍 Original strain designation appears to refer to herbarium material. 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.
  • 🧍 In accordance with Rule 18c of the International Code of Nomenclature of Bacteria, strain Cb m2 (DSM 14751 JCM 12627) is proposed as the neotype strain of Cystobacter minus by Lang and Reichenbach (2013); these authors also provided the 16S rRNA gene sequence accession number given above. Publication: Lang E, Reichenbach H. Designation of type strains for seven species of the order Myxococcales and proposal for neotype strains of Cystobacter ferrugineus, Cystobacter minus and Polyangium fumosum. Int J Syst Evol Microbiol 2013; 63:4354-4360.

Parent taxon: Cystobacter Schroeter 1886 (Approved Lists 1980)

Assigned by: McCurdy HD. Studies on the taxonomy of the Myxobacterales. II. Polyangium and the demise of the Sporangiaceae. International Journal of Systematic Bacteriology 1970; 20:283-296.

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Record number: 775375