Name: Actinomycetes Krassilnikov 1949 (Approved Lists 1980)

Category: Class

Proposed as: class. nov.

Etymology: N.L. masc. n. Actinomyces, one genus of the class; N.L. neut. pl. n. Actinomycetes, the Actinomyces class

Gender: neuter

Type order: Actinomycetales Buchanan 1917 (Approved Lists 1980)

Original publication: Krassilnikov NA. Opredelitelv Bakterii i Actinomicetov. Akademii 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

Taxonomic status: synonym

Correct name: Actinobacteria Stackebrandt et al. 1997

• Synonyms:

  • Name	Kind
    Actinomycetia (Stackebrandt et al. 1997) Salam et al. 2020	homotypic synonym, validly published
    Arabobacteria Cavalier-Smith 2002	heterotypic synonym, validly published, rejected name
    Actinobacteria Stackebrandt et al. 1997	heterotypic synonym, validly published, illegitimate name
    Arthrobacteria Cavalier-Smith 2002	homotypic synonym, validly published, rejected name
    Streptomycetes Cavalier-Smith 2002	heterotypic synonym, validly published, rejected name

• Notes:
  • Goodfellow and Williams (1983) assigned the uncategorized "Maduromycetes" Goodfellow and Williams 1983 to this class. Publication: Goodfellow M, Williams ST. Ecology of Actinomycetes. Ann. Rev. Microbiol. 1983; 37:189-216.
  • Goodfellow and Williams (1983) assigned the uncategorized "Actinoplanetes" Goodfellow and Williams 1983 to this class. Publication: Goodfellow M, Williams ST. Ecology of Actinomycetes. Ann. Rev. Microbiol. 1983; 37:189-216.
  • Goodfellow and Williams (1983) assigned the uncategorized "Actinobacteria" Goodfellow and Williams 1983 to this class. Publication: Goodfellow M, Williams ST. Ecology of Actinomycetes. Ann. Rev. Microbiol. 1983; 37:189-216.
  • Goodfellow and Williams (1983) assigned the uncategorized "Micropolysporas" Goodfellow and Williams 1983 to this class. Publication: Goodfellow M, Williams ST. Ecology of Actinomycetes. Ann. Rev. Microbiol. 1983; 37:189-216.
  • Goodfellow and Williams (1983) assigned the uncategorized "Multilocular" Goodfellow and Williams 1983 to this class. Publication: Goodfellow M, Williams ST. Ecology of Actinomycetes. Ann. Rev. Microbiol. 1983; 37:189-216.
  • Goodfellow and Williams (1983) assigned the uncategorized "Nocardioform" Goodfellow and Williams 1983 to this class. Publication: Goodfellow M, Williams ST. Ecology of Actinomycetes. Ann. Rev. Microbiol. 1983; 37:189-216.
  • Goodfellow and Williams (1983) assigned the uncategorized "Streptomycetes" Goodfellow and Williams 1983 to this class. Publication: Goodfellow M, Williams ST. Ecology of Actinomycetes. Ann. Rev. Microbiol. 1983; 37:189-216.
  • Goodfellow and Williams (1983) assigned the uncategorized "Thermomonosporas" Goodfellow and Williams 1983 to this class. Publication: Goodfellow M, Williams ST. Ecology of Actinomycetes. Ann. Rev. Microbiol. 1983; 37:189-216.
  • The type order of this class has been placed in the class Actinobacteria Stackebrandt et al. 1997. Publication: Nouioui I, Carro L, García-López L, Meier-Kolthoff JP, et al. Genome-based taxonomic classication of the phylum Actinobacteria. Front Microbiol 2007; 2018:9.
  • The type order of this class has alternatively been placed in the class Schizomycetes Nägeli 1857 (Approved Lists 1980). Publication: Winslow CE, Broadhurst J, Buchanan RE, Krumwiede C, Rogers LA, Smith GH. The Families and Genera of the Bacteria: Final Report of the Committee of the Society of American Bacteriologists on Characterization and Classification of Bacterial Types. J Bacteriol 1920; 5:191-229.
  • This taxon name is occasionally misprinted in some sources as: "Acinomycetes"; "Actinimycetes"; "Actinomycetos"; "Actinomytcetes"; "Actionmycetes"; "Antinomycetes".
  • This taxon name is occasionally used in singular form as: "Actinomycete".
  • According to Tindall (2014) the type order is Actinomycetales Buchanan 1917. Publication: Tindall BJ. Names at the rank of class, subclass and order, their typification and current status: Supplementary information to Opinion 79. Judicial Commission of the International Committee on Systematics of Prokaryotes. Int J Syst Evol Microbiol 2014; 64:3599-3602.
  • Rule 22 indicates that the type of a taxon higher than order may be later designated by an Opinion of the Judicial Comission. Publication: Euzeby JP, Tindall BJ. Nomenclatural type of orders: corrections necessary according to Rules 15 and 21a of the Bacteriological Code (1990 Revision), and designation of appropriate nomenclatural types of classes and subclasses. Request for an opinion. Int J Syst Evol Microbiol 2001; 51:725-727.
  • The class Actinomycetes was originally proposed without the designation of a nomenclatural type, thus contravening Rules 15, 22 and 27(3). Publication: Euzeby JP, Tindall BJ. Nomenclatural type of orders: corrections necessary according to Rules 15 and 21a of the Bacteriological Code (1990 Revision), and designation of appropriate nomenclatural types of classes and subclasses. Request for an opinion. Int J Syst Evol Microbiol 2001; 51:725-727.

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