Species ***Streptomyces* *megasporus***

Name: Streptomyces megasporus (ex Krassilnikov et al. 1968) Agre 1986

Category: Species

Proposed as: sp. nov., nom. rev.

Etymology: me.ga’spo.rus. Gr. masc. adj. megas, big; Gr. fem. n. spora, seed; N.L. masc. adj. megasporus, large spored

Pronunciation, gender: me-GA-spo-rus, masculine

Type strain: ATCC 43688; DSM 41476; HUT 6610; IFO 14749; INA M-22; INMI 2869; JCM 6926; NBRC 14749; NRRL B-16372; VKM Ac-1776

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: Z68100 Analyse FASTA

Effective publication: Gauze GF, Preobrazhenskaya TP, Sveshnikova MA, Terekhova LP, Maximova TS. A guide for the determination of actinomycetes. Genera Streptomyces, Streptoverticillium, and Chainia. Nauka, Moscow, URSS, 1983.

IJSEM list: Anonymous. Validation list no. 22. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1986; 36:573-576.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

Emendations:
- Goodfellow et al. 1987 Goodfellow M, Lacey J, Todd C. Numerical classification of thermophilic Streptomycetes. J. Gen. Microbiol. 1987; 133:3135-3149. 🇬🇧
  Notes:
  - 🧍 As of 2023-09-04 this emendation was not yet included in an IJSEM List of Changes in Taxonomic Opinion.
- 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.

Notes:
- ✏ The authority of the taxon name (Agre) deliberately differs from the authors of the publication (Gauze et al.).
- 😷 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.
- 🙆 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.
- 🧍 Nom. rev. / basonym "Actinomyces megasporus".
- 🧍 Names of the individuals to be credited for Streptomyces megasporus proposed in reference Gause et al. 1983 were supplied by T.P. Preobrazhenskaya, personal communication to the Associate Editor, IJSB. Publication: Anonymous. Validation list no. 22. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1986; 36:573-576.

Parent taxon: Streptomyces Waksman and Henrici 1943 (Approved Lists 1980)

Assigned by: Gauze GF, Preobrazhenskaya TP, Sveshnikova MA, Terekhova LP, Maximova TS. A guide for the determination of actinomycetes. Genera Streptomyces, Streptoverticillium, and Chainia. Nauka, Moscow, URSS, 1983.

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Record number: 781850

This LPSN page was printed on 2026-01-15 11:43:22

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Species Streptomyces megasporus

Species ***Streptomyces* *megasporus***