Name: Azotobacter chroococcum Beijerinck 1901 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: chro.o.coc’cum. Gr. fem. n. chroa, color; N.L. masc. n. coccus, coccus; from Gr. masc. n. kokkos, grain, seed; N.L. neut. n. chroococcum, colored coccus (nominative in apposition)

Gender: masculine

Type strain: ATCC 9043; DSM 2286; JCM 20725; JCM 21503; LMG 8756; NBRC 102613; NCAIM B.01391; NRRL B-14346; NRRL B-14637; VKM B-1616

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: EU401906 Analyse FASTA

Effective publication: Beijerinck MW. Über oligonitrophile Mikroben. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Abteilung II 1901; 7:561-582.

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

• Emendations:
  • Jin et al. 2020 Jin H, Wang H, Zhang Y, Hu T, Lin Z, Liu B, Ma J, Wang X, Liu Q, Lin X, et al. Description of Azotobacter chroococcum subsp. isscasi subsp. nov. isolated from paddy soil and establishment of Azotobacter chroococcum subsp. chroococcum subsp. nov. Int J Syst Evol Microbiol 2020; 70:2124-2131. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 3 of the IJSEM. Int J Syst Evol Microbiol 2020; 70:3583-3587.

• Notes:
  • 🥇 Nomenclatural type of the genus Azotobacter Beijerinck 1901 (Approved Lists 1980). Publication: Beijerinck MW. Über oligonitrophile Mikroben. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Abteilung II 1901; 7:561-582.
  • 😷 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. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 440 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 chroococcum subsp. isscasi Jin et al. 2020	validly published under the ICNP	correct name
    Azotobacter chroococcum subsp. chroococcum (Beijerinck 1901) Jin et al. 2020	validly published under the ICNP	correct name

Parent taxon: Azotobacter Beijerinck 1901 (Approved Lists 1980)

Assigned by: Beijerinck MW. Über oligonitrophile Mikroben. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Abteilung II 1901; 7:561-582.

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Record number: 773603