Name: Blastococcus aggregatus Ahrens and Moll 1970 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: ag.gre.ga’tus. L. masc. part. adj. aggregatus, added to, joined together, referring to the tendency to form coccoid aggregates

Pronunciation, gender: ag-gre-GA-tus, masculine

Type strain: ATCC 25902; B 15; DSM 4725; JCM 12602; NCIMB 1849

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ430193 Analyse FASTA

Effective publication: Ahrens R, Moll G. [A new budding bacterium from the Baltic Sea]. Arch Mikrobiol 1970; 70:243-265.

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:
  • Urzì et al. 2004 Urzi C, Salamone P, Schumann P, Rohde M, Stackebrandt E. Blastococcus saxobsidens sp. nov., and emended descriptions of the genus Blastococcus Ahrens and Moll 1970 and Blastococcus aggregatus Ahrens and Moll 1970. Int J Syst Evol Microbiol 2004; 54:253-259. 🇩🇪 Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 54, part 1 of the IJSEM. Int J Syst Evol Microbiol 2004; 54:633-634.
    Notes:
    • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details.
  • Hezbri et al. 2016 Hezbri K, Louati M, Nouioui I, Gtari M, Rohde M, Sproer C, Schumann P, Klenk HP, Ghodhbane-Gtari F, Montero-Calasanz MD. Blastococcus capsensis sp. nov., isolated from an archaeological Roman pool and emended description of the genus Blastococcus, B. aggregatus, B. saxobsidens, B. jejuensis and B. endophyticus. Int J Syst Evol Microbiol 2016; 66:4864-4872. 🇹🇳 Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 11 of the IJSEM. Int J Syst Evol Microbiol 2017; 67:179-182.
  • Montero-Calasanz et al. 2022 Montero-Calasanz MDC, Yaramis A, Rohde M, Schumann P, Klenk HP, Meier-Kolthoff JP. Genotype-phenotype correlations within the Geodermatophilaceae. Front Microbiol 2022; 13:975365. 🇪🇸 Oren A, Göker M. List of changes in taxonomic opinion no. 38. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2023; 73:5923.

• Notes:
  • 🥇 Nomenclatural type of the genus Blastococcus Ahrens and Moll 1970 (Approved Lists 1980). Publication: Ahrens R, Moll G. [A new budding bacterium from the Baltic Sea]. Arch Mikrobiol 1970; 70:243-265.
  • 😷 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. — 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 8 times in PubMed until 2025-06-04.

Parent taxon: Blastococcus Ahrens and Moll 1970 (Approved Lists 1980)

Assigned by: Ahrens R, Moll G. [A new budding bacterium from the Baltic Sea]. Arch Mikrobiol 1970; 70:243-265.

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Record number: 774087