Name: Azotobacter nigricans Krassilnikov 1949 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: ni’gri.cans. L. part. adj. nigricans, blackish

Gender: masculine

Type strain: ACM 1967; ATCC 35009; DSM 2288; LMG 2816; UQM 1967

See detailed strain information at

16S rRNA gene: AB175651 Analyse FASTA

Effective publication: Krassilnikov NA. Guide to the Bacteria and Actinomycetes. Akademiya Nauk SSSR, Moscow, 1949.

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

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• 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.
  • 🎓 Name mentioned 9 times in PubMed until 2024-03-27.

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 2

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Azotobacter nigricans subsp. achromogenes Thompson and Skerman 1981	validly published under the ICNP	correct name
    Azotobacter nigricans subsp. nigricans (Krassilnikov 1949) Thompson and Skerman 1981	validly published under the ICNP	correct name

Parent taxon: Azotobacter Beijerinck 1901 (Approved Lists 1980)

Assigned by: Krassilnikov NA. Guide to the Bacteria and Actinomycetes. Akademiya Nauk SSSR, Moscow, 1949.

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Record number: 773607