Name: Saccharopolyspora erythraea corrig. (Waksman 1923) Labeda 1987

Category: Species

Proposed as: comb. nov.

Basonym: "Actinomyces erythreus" Waksman 1923

Etymology: e.ry.thrae’a. L. fem. adj. erythraea, reddish, referring to colony color

Pronunciation (Latin), gender: … e-ry-T^HRA͡E-a, feminine

Type strain: ATCC 11635; CECT 3200; CGMCC 4.1478; DSM 40517; HUT 6087; IAM 45; IFO 13426; ISP 5517; JCM 4026; JCM 4748; NBRC 13426; NCIB 8594; NCIMB 8594; NRRL 2338; VKM Ac-1189

Conduct genome-based taxonomy at

16S rRNA gene: X53198 Analyse FASTA

Valid publication: Labeda DP. Transfer of the type strain of Streptomyces erythraeus (Waksman 1923) Waksman and Henrici 1948 to the genus Saccharopolyspora Lacey and Goodfellow 1975 as Saccharopolyspora erythraea sp. nov., and designation of a neotype strain for Streptomyces erythraeus. Int. J. Syst. Bacteriol. 1987; 37:19-22. 🇺🇸

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Synonyms:

  • Name	Kind
    "Actinomyces erythraeus" corrig. Waksman 1923	homotypic synonym, not validly published, basonym of name in Approved Lists
    Streptomyces erythreus (Waksman 1923) Waksman and Henrici 1948 (Approved Lists 1980)	homotypic synonym, inaccurate spelling
    Saccharopolyspora spinosporotrichia Zhou et al. 1998	heterotypic synonym, validly published under the ICNP
    Streptomyces erythraeus corrig. (Waksman 1923) Waksman and Henrici 1948 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    "Actinomyces erythreus" Waksman 1923	homotypic synonym, inaccurate spelling

• Emendations:
  • Nouioui et al. 2018 Nouioui I, Carro L, Garcia-Lopez M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Goker M. Genome-Based Taxonomic Classification of the Phylum Actinobacteria. Front Microbiol 2018; 9:2007. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.
  • Dif et al. 2025 Dif G, Djemouai N, Meklat A, Zitouni A. A whole-genome study suggests a taxonomic rearrangement of Saccharopolyspora subtropica as a later heterotypic synonym of Saccharopolyspora thermophila and Saccharopolyspora spinosporotrichia as a later heterotypic synonym of Saccharopolyspora erythraea. Int J Syst Evol Microbiol 2025; 75:6731. 🇩🇿 Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 75, part 3 of the IJSEM. Int J Syst Evol Microbiol 2025; 75:6765.
    Notes:
    • 🫂 Emendation accompanied by a proposal regarding the synonymy of the species.

• Notes:
  • ⏰ According to Dif et al. (2025), this species is an earlier heterotypic synonym of Saccharopolyspora spinosporotrichia Zhou et al. 1998. Publication: Dif G, Djemouai N, Meklat A, Zitouni A. A whole-genome study suggests a taxonomic rearrangement of Saccharopolyspora subtropica as a later heterotypic synonym of Saccharopolyspora thermophila and Saccharopolyspora spinosporotrichia as a later heterotypic synonym of Saccharopolyspora erythraea. Int J Syst Evol Microbiol 2025; 75:6731. 🇩🇿
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 75, part 3 of the IJSEM. Int J Syst Evol Microbiol 2025; 75:6765.
  • 🧬 The phylogenomic assignment score of this taxon is 0.00791 (N = 31).
  • 😷 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 353 times in PubMed until 2025-06-04.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.
  • 🧍 Saccharopolyspora erythraea (Waksman 1923) Labeda 1987, comb. nov. was first described as Saccharopolyspora erythraea, sp. nov. Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592. 🇫🇷
  • 🧍 Rule 17 states that the type determines the application of a taxon if the taxon is subsequently divided or united with another taxon, and Rule 40b that the specific epithet must be retained for the species which includes the type strain. Since Saccharopolyspora erythraea Labeda 1987 contains the type strain of Streptomyces erythraeus (Waksman 1923) Waksman and Henrici 1948 (Approved Lists 1980), the taxon must be regarded as a new combination: Saccharopolyspora erythraea (Waksman 1923) Labeda 1987. Publication: Oren A, Arahal DR, Christensen H, Goker M, Manaia CM, Moore ERB. International Code of Nomenclature of Prokaryotes. Prokaryotic Code (2025 Revision). Int J Syst Evol Microbiol 2026; 76:6979. 🇮🇱

Parent taxon: Saccharopolyspora Lacey and Goodfellow 1975 (Approved Lists 1980)

Assigned by: Labeda DP. Transfer of the type strain of Streptomyces erythraeus (Waksman 1923) Waksman and Henrici 1948 to the genus Saccharopolyspora Lacey and Goodfellow 1975 as Saccharopolyspora erythraea sp. nov., and designation of a neotype strain for Streptomyces erythraeus. Int. J. Syst. Bacteriol. 1987; 37:19-22. 🇺🇸

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Record number: 780682