Species Actinopycnidium caeruleum

Name: Actinopycnidium caeruleum Krassilnikov 1962 (Approved Lists 1980)

Category, proposed as: species, sp. nov.

Etymology: cae.ru’le.um. L. neut. adj. caeruleum, blue, dark blue

Pronunciation (Latin), gender: ak-ti-no-pyk-NI-di-um ka͡e-RU-le-um, neuter

Type strain: ATCC 15719; ATCC 15812; CGMCC 4.1070; DSM 43030; IFM 1139; IFO 12244; IMET 43409; JCM 3037; KCC A-37; KCTC 9116; NBRC 12244; NCIMB 10164; RIA 729; VKM Ac-644

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF503491 Analyse FASTA

Effective publication: Krassilnikov NA. A new genus of ray fungus-Actinopycnidum n. gen. of family Actinomycetaceae. Microbiologiya 1962; 31:250-253.

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: synonym (and not recommended for medical use)

Correct name: Streptomyces violaceoruber (Waksman and Curtis 1916) Pridham 1970 (Approved Lists 1980)

Risk group: 1

• Synonyms:

  • Name	Kind
    "Actinomyces roseodiastaticus" Duché 1934	heterotypic synonym, not validly published, basonym of name in Approved Lists
    "Actinomyces tricolor" Wollenweber 1920	heterotypic synonym, not validly published, basonym of name in Approved Lists
    Streptomyces violaceoruber (Waksman and Curtis 1916) Pridham 1970 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Streptomyces violaceolatus (Krassilnikov et al. 1965) Pridham 1970 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    "Actinomyces coelescens" Krassilnikov et al. 1965	heterotypic synonym, not validly published, basonym of name in Approved Lists
    Streptomyces tricolor (Wollenweber 1920) Waksman 1961 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Streptomyces anthocyanicus (Krassilnikov et al. 1965) Pridham 1970 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Streptomyces coelescens (Krassilnikov et al. 1965) Pridham 1970 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Streptomyces humiferus Goodfellow et al. 1986	homotypic synonym, validly published under the ICNP
    "Actinomyces anthocyanicus" Krassilnikov 1965	heterotypic synonym, not validly published
    "Actinomyces violaceolatus" Krassilnikov 1965	heterotypic synonym, not validly published
    "Actinomyces coelescens" Krassilnikov 1965	heterotypic synonym, not validly published
    "Actinomyces violaceusruber" Waksman and Curtis 1916	heterotypic synonym, not validly published, basonym of name in Approved Lists
    "Actinomyces anthocyanicus" Krassilnikov et al. 1965	heterotypic synonym, not validly published, basonym of name in Approved Lists
    "Actinomyces violaceolatus" Krassilnikov et al. 1965	heterotypic synonym, not validly published, basonym of name in Approved Lists
    Streptomyces roseodiastaticus (Duché 1934) Waksman 1953 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Actinopycnidium Krassilnikov 1962 (Approved Lists 1980). Publication: Krassilnikov NA. A new genus of ray fungus-Actinopycnidum n. gen. of family Actinomycetaceae. Microbiologiya 1962; 31:250-253.
  • ⏲ According to Komaki (2021), this species is a later heterotypic synonym of "Actinomyces anthocyanicus" Krassilnikov et al. 1965. Publication: Komaki H. Reclassification of 15 Streptomyces species as synonyms of Streptomyces albogriseolus, Streptomyces althioticus, Streptomyces anthocyanicus, Streptomyces calvus, Streptomyces griseoincarnatus, Streptomyces mutabilis, Streptomyces pilosus or Streptomyces rochei. Int J Syst Evol Microbiol 2019; 71:0. 🇯🇵
  • ⏲ According to Komaki (2021), this species is a later heterotypic synonym of Streptomyces anthocyanicus (Krassilnikov et al. 1965) Pridham 1970 (Approved Lists 1980). Publication: Komaki H. Reclassification of 15 Streptomyces species as synonyms of Streptomyces albogriseolus, Streptomyces althioticus, Streptomyces anthocyanicus, Streptomyces calvus, Streptomyces griseoincarnatus, Streptomyces mutabilis, Streptomyces pilosus or Streptomyces rochei. Int J Syst Evol Microbiol 2019; 71:0. 🇯🇵
  • ⏲ According to Komaki (2021), this species is a later heterotypic synonym of "Actinomyces anthocyanicus" Krassilnikov 1965. Publication: Komaki H. Reclassification of 15 Streptomyces species as synonyms of Streptomyces albogriseolus, Streptomyces althioticus, Streptomyces anthocyanicus, Streptomyces calvus, Streptomyces griseoincarnatus, Streptomyces mutabilis, Streptomyces pilosus or Streptomyces rochei. Int J Syst Evol Microbiol 2019; 71:0. 🇯🇵
  • ⏰ According to Komaki (2021), this species is an earlier heterotypic synonym of "Actinomyces coelescens" Krassilnikov et al. 1965. Publication: Komaki H. Reclassification of 15 Streptomyces species as synonyms of Streptomyces albogriseolus, Streptomyces althioticus, Streptomyces anthocyanicus, Streptomyces calvus, Streptomyces griseoincarnatus, Streptomyces mutabilis, Streptomyces pilosus or Streptomyces rochei. Int. J. Syst. Evol. Microbiol. 2021; 71:4718. 🇯🇵
  • ⏰ According to Komaki (2021), this species is an earlier heterotypic synonym of "Actinomyces violaceolatus" Krassilnikov et al. 1965. Publication: Komaki H. Reclassification of 15 Streptomyces species as synonyms of Streptomyces albogriseolus, Streptomyces althioticus, Streptomyces anthocyanicus, Streptomyces calvus, Streptomyces griseoincarnatus, Streptomyces mutabilis, Streptomyces pilosus or Streptomyces rochei. Int. J. Syst. Evol. Microbiol. 2021; 71:4718. 🇯🇵
  • ⏰ According to Komaki (2021), this species is an earlier heterotypic synonym of Streptomyces coelescens (Krassilnikov et al. 1965) Pridham 1970 (Approved Lists 1980). Publication: Komaki H. Reclassification of 15 Streptomyces species as synonyms of Streptomyces albogriseolus, Streptomyces althioticus, Streptomyces anthocyanicus, Streptomyces calvus, Streptomyces griseoincarnatus, Streptomyces mutabilis, Streptomyces pilosus or Streptomyces rochei. Int. J. Syst. Evol. Microbiol. 2021; 71:4718. 🇯🇵
  • ⏰ According to Komaki (2021), this species is an earlier heterotypic synonym of Streptomyces violaceolatus (Krassilnikov et al. 1965) Pridham 1970 (Approved Lists 1980). Publication: Komaki H. Reclassification of 15 Streptomyces species as synonyms of Streptomyces albogriseolus, Streptomyces althioticus, Streptomyces anthocyanicus, Streptomyces calvus, Streptomyces griseoincarnatus, Streptomyces mutabilis, Streptomyces pilosus or Streptomyces rochei. Int. J. Syst. Evol. Microbiol. 2021; 71:4718. 🇯🇵
  • ⏰ According to Komaki (2021), this species is an earlier heterotypic synonym of "Actinomyces coelescens" Krassilnikov 1965. Publication: Komaki H. Reclassification of 15 Streptomyces species as synonyms of Streptomyces albogriseolus, Streptomyces althioticus, Streptomyces anthocyanicus, Streptomyces calvus, Streptomyces griseoincarnatus, Streptomyces mutabilis, Streptomyces pilosus or Streptomyces rochei. Int. J. Syst. Evol. Microbiol. 2021; 71:4718. 🇯🇵
  • ⏰ According to Komaki (2021), this species is an earlier heterotypic synonym of "Actinomyces violaceolatus" Krassilnikov 1965. Publication: Komaki H. Reclassification of 15 Streptomyces species as synonyms of Streptomyces albogriseolus, Streptomyces althioticus, Streptomyces anthocyanicus, Streptomyces calvus, Streptomyces griseoincarnatus, Streptomyces mutabilis, Streptomyces pilosus or Streptomyces rochei. Int. J. Syst. Evol. Microbiol. 2021; 71:4718. 🇯🇵
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 71, part 3 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4812.
  • ❗ Actinopycnidium caeruleum is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Actinopycnidium.
  • 😷 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 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 1 time in PubMed until 2026-06-11.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.

Parent taxon: Actinopycnidium Krassilnikov 1962 (Approved Lists 1980)

Assigned by: Krassilnikov NA. A new genus of ray fungus-Actinopycnidum n. gen. of family Actinomycetaceae. Microbiologiya 1962; 31:250-253.

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.772859Copy to clipboardLink copied to clipboard

Record number: 772859