Species ***Streptomyces* *glaucescens***

Name: Streptomyces glaucescens (Preobrazhenskaya 1957) Pridham et al. 1958 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Actinomyces glaucescens" Preobrazhenskaya 1957

Etymology: glau.ces’cens. L. masc. adj. glaucus, bluish gray; N.L. masc. part. adj. glaucescens, becoming slightly bluish gray, referring to the bluish green color of the aerial mycelium on a chemically defined medium

Pronunciation (Latin), gender: strep-TO-my-kes gla͡u-KES-kens, masculine

Type strain: ATCC 19761; ATCC 23622; BCRC 11478; CBS 499.68; CCRC 11478; CECT 3133; CGMCC 4.1408; DSM 40155; IFO 12774; IMET 43584; INA 8731; ISP 5155; JCM 4377; LMG 19330; NBRC 12774; NCIB 9619; NCIB 9844; NCIMB 9619; NCIMB 9844; NRRL B-2706; NRRL ISP-5155; RIA 1041; UNIQEM 147; VKM Ac-617

16S rRNA gene: AB184843 Analyse FASTA

Effective publication: Pridham TG, Hesseltine CW, Benedict RG. A guide for the classification of streptomycetes according to selected groups; placement of strains in morphological sections. Appl Microbiol 1958; 6:52-79.

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 (and explicitly recommended for medical use)

Risk group: 1

Synonyms:

Name	Kind
"Actinomyces glaucescens" Preobrazhenskaya 1957	homotypic synonym, not validly published, basonym of name in Approved Lists
Streptomyces pharetrae Le Roes and Meyers 2005	heterotypic synonym, validly published under the ICNP

Emendations:
- Madhaiyan et al. 2020 Madhaiyan M, Saravanan VS, See-Too WS. Genome-based analyses reveal the presence of 12 heterotypic synonyms in the genus Streptomyces and emended descriptions of Streptomyces bottropensis, Streptomyces cellulo fl avus, Streptomyces fulvissimus, Streptomyces glaucescens, Streptomyces murinus, and Streptomyces variegatus. Int J Syst Evol Microbiol 2020; 70:3924-3929. 🇮🇳 Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 6 of the IJSEM. Int J Syst Evol Microbiol 2020; 70:4848-4850.
  Notes:
  - 🫂 Emendation accompanied by a proposal regarding the synonymy of the species.

Notes:
- ⏰ According to Madhaiyan et al. (2020), this species is an earlier heterotypic synonym of Streptomyces pharetrae Le Roes and Meyers 2005. Publication: Madhaiyan M, Saravanan VS, See-Too WS. Genome-based analyses reveal the presence of 12 heterotypic synonyms in the genus Streptomyces and emended descriptions of Streptomyces bottropensis, Streptomyces cellulo fl avus, Streptomyces fulvissimus, Streptomyces glaucescens, Streptomyces murinus, and Streptomyces variegatus. Int J Syst Evol Microbiol 2020; 70:3924-3929. 🇮🇳
- 😷 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 2026-08-13. 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 101 times in PubMed until 2026-06-11.
- 🙆 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.

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

Assigned by: Pridham TG, Hesseltine CW, Benedict RG. A guide for the classification of streptomycetes according to selected groups; placement of strains in morphological sections. Appl Microbiol 1958; 6:52-79.

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.781690Link copied to clipboard

Record number: 781690

This LPSN page was printed on 2026-09-15 17:59:54

Support LPSN

Species Streptomyces glaucescens

Species ***Streptomyces* *glaucescens***