Species Streptomyces nigrifaciens

Name: Streptomyces nigrifaciens Waksman 1961 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: ni.gri.fa.ci.ens. L. adj. niger -gra -grum, black; L. pres. part. faciens, producing; N.L. masc. part. adj. nigrifaciens, producing black pigment

Gender: masculine

Type strain: ATCC 19791; BCRC 13672; CBS 543.68; CCRC 13672; DSM 40071; IFO 12802; JCM 4223; JCM 4597; LMG 20048; NBRC 12802; NCIMB 13019; NRRL B-2094; NRRL ISP-5071; RIA 1070; UNIQEM 177; VKM Ac-1888

16S rRNA gene: DQ442531 Analyse FASTA

Effective publication: Waksman SA. The Actinomycetes. Vol. 2. Classification, identification and descriptions of genera and species. The Williams & Wilkins Co., Baltimore, 1961.

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 flavovirens (Waksman 1923) Waksman and Henrici 1948 (Approved Lists 1980)

Risk group: 1

Synonyms:

Name	Kind
Streptomyces flavogriseus (Duché 1934) Waksman and Lechevalier 1953 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
Streptomyces flavovirens (Waksman 1923) Waksman and Henrici 1948 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
"Actinomyces flavogriseus" Duché 1934	heterotypic synonym, not validly published, basonym of name in Approved Lists
"Actinomyces flavovirens" Waksman 1923	heterotypic synonym, not validly published, basonym of name in Approved Lists

Notes:
- ⏲ According to Lanoot et al. (2005), this species is a later heterotypic synonym of "Actinomyces flavovirens" Waksman 1923. Publication: Lanoot B, Vancanneyt M, Van Schoor A, Liu Z, Swings J. Reclassification of Streptomyces nigrifaciens as a later synonym of Streptomyces flavovirens; Streptomyces citreofluorescens, Streptomyces chrysomallus subsp. chrysomallus and Streptomyces fluorescens as later synonyms of Streptomyces anulatus; Streptomyces chibaensis as a later synonym of Streptomyces corchorusii; Streptomyces flaviscleroticus as a later synonym of Streptomyces minutiscleroticus; and Streptomyces lipmanii, Streptomyces griseus subsp. alpha, Streptomyces griseus subsp. cretosus and Streptomyces willmorei as later synonyms of Streptomyces microflavus. Int J Syst Evol Microbiol 2005; 55:729-731.
- ⏲ According to Lanoot et al. (2005), this species is a later heterotypic synonym of Streptomyces flavovirens (Waksman 1923) Waksman and Henrici 1948 (Approved Lists 1980). Publication: Lanoot B, Vancanneyt M, Van Schoor A, Liu Z, Swings J. Reclassification of Streptomyces nigrifaciens as a later synonym of Streptomyces flavovirens; Streptomyces citreofluorescens, Streptomyces chrysomallus subsp. chrysomallus and Streptomyces fluorescens as later synonyms of Streptomyces anulatus; Streptomyces chibaensis as a later synonym of Streptomyces corchorusii; Streptomyces flaviscleroticus as a later synonym of Streptomyces minutiscleroticus; and Streptomyces lipmanii, Streptomyces griseus subsp. alpha, Streptomyces griseus subsp. cretosus and Streptomyces willmorei as later synonyms of Streptomyces microflavus. Int J Syst Evol Microbiol 2005; 55:729-731.
- ❗ Streptomyces nigrifaciens 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 Streptomyces.
- 😷 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 11 times in PubMed until 2025-06-04.
- 🙅 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: Streptomyces Waksman and Henrici 1943 (Approved Lists 1980)

Assigned by: Waksman SA. The Actinomycetes. Vol. 2. Classification, identification and descriptions of genera and species. The Williams & Wilkins Co., Baltimore, 1961.

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Record number: 781880

This LPSN page was printed on 2025-06-20 12:49:15

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Species Streptomyces nigrifaciens