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Species Corynebacterium nigricans
Name: Corynebacterium nigricans Shukla et al. 2004
Etymology: ni’gri.cans. L. neut. part. adj. nigricans, blackish, swarthy
Pronunciation, gender: NI-gri-kans, neuter
Type strain: ATCC 700975; CCUG 48176; CIP 107346; CN 1; DSM 44827; JCM 12684
Conduct genome-based taxonomy at
16S rRNA gene:
AF220220
Analyse
FASTA
Effective publication:
Shukla SK, Bernard KA, Harney M, Frank DN, Reed KD. Corynebacterium nigricans sp. nov.: proposed name for a black-pigmented Corynebacterium species recovered from the human female urogenital tract. J Clin Microbiol 2003; 41:4353-4358. 
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IJSEM list:
Euzeby JP. Validation list no. 95. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2004; 54:1-2.
Nomenclatural status: validly published under the ICNP
Taxonomic status: synonym (and not recommended for medical use)
Correct name: Corynebacterium aurimucosum Yassin et al. 2002
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Synonyms:
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Name Kind Corynebacterium aurimucosum Yassin et al. 2002 heterotypic synonym, validly published under the ICNP
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Emendations:
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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.
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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.
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Notes:
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⏲ According to Daneshvar et al. (2004), this species is a later heterotypic synonym of Corynebacterium aurimucosum Yassin et al. 2002.
Publication:
Daneshvar MI, Hollis DG, Weyant RS, Jordan JG, MacGregor JP, Morey RE, Whitney AM, Brenner DJ, Steigerwalt AG, Helsel LO, et al. Identification of some charcoal-black-pigmented CDC fermentative coryneform group 4 isolates as Rothia dentocariosa and some as Corynebacterium aurimucosum: proposal of Rothia dentocariosa emend. Georg and Brown 1967, Corynebacterium aurimucosum emend. Yassin et al. 2002, and Corynebacterium nigricans Shukla et al. 2003 pro synon. Corynebacterium aurimucosum. J Clin Microbiol 2004; 42:4189-4198. 🇺🇸
- ❗ Corynebacterium nigricans 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 Corynebacterium.
- 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2. — 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 2 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 species itself.
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🧍 According to Bartlett et al. (2022), this species is an established human pathogen.
Publication:
Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology (Reading) 2022; 168:0. 🇬🇧
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🧍 In the article by Shukla et al. 2003, the etymology is provided as follows: "The name Corynebacterium nigricans (ni' gri-kans) is derived from the word "niger" (L. fr. niger, black)" [sic]!
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. 🇫🇷
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🧍 In the article by Shukla et al. 2003, the strain ATCC 700975 is erroneously cited as ATCC 700795. — 🧍 The paper by Shukla et al. 2003 only cites the strain ATCC 700795 (sic) as type strain. However, certificate for CIP 107346 has been provided on request for validation.
Publication:
Euzeby JP. Validation list no. 95. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2004; 54:1-2.
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⏲ According to Daneshvar et al. (2004), this species is a later heterotypic synonym of Corynebacterium aurimucosum Yassin et al. 2002.
Publication:
Daneshvar MI, Hollis DG, Weyant RS, Jordan JG, MacGregor JP, Morey RE, Whitney AM, Brenner DJ, Steigerwalt AG, Helsel LO, et al. Identification of some charcoal-black-pigmented CDC fermentative coryneform group 4 isolates as Rothia dentocariosa and some as Corynebacterium aurimucosum: proposal of Rothia dentocariosa emend. Georg and Brown 1967, Corynebacterium aurimucosum emend. Yassin et al. 2002, and Corynebacterium nigricans Shukla et al. 2003 pro synon. Corynebacterium aurimucosum. J Clin Microbiol 2004; 42:4189-4198.
Parent taxon: Corynebacterium Lehmann and Neumann 1896 (Approved Lists 1980)
Assigned by:
Shukla SK, Bernard KA, Harney M, Frank DN, Reed KD. Corynebacterium nigricans sp. nov.: proposed name for a black-pigmented Corynebacterium species recovered from the human female urogenital tract. J Clin Microbiol 2003; 41:4353-4358. 🇺🇸
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Record number: 775229
This LPSN page was printed on 2026-01-18 19:39:57