Name: Geodermatophilus nigrescens Nie et al. 2012

Category: Species

Proposed as: sp. nov.

Etymology: ni.gres’cens. L. masc. part. adj. nigrescens, becoming black

Pronunciation, gender: ni-GRES-kens, masculine

Type strain: CCTCC AA 2011015; DSM 45408; DSM 45677; JCM 18056; YIM 75980

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: JN188947 Analyse FASTA

Effective publication: Nie GX, Ming H, Li S, Zhou EM, Cheng J, Yu TT, Zhang J, Feng HG, Tang SK, Li WJ. Geodermatophilus nigrescens sp. nov., isolated from a dry-hot valley. Antonie Van Leeuwenhoek 2012; 101:811-817.

IJSEM list: Euzeby JP. Validation list no. 147. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2012; 62:2045-2047.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Montero-Calasanz et al. 2017 Montero-Calasanz MDC, Meier-Kolthoff JP, Zhang DF, Yaramis A, Rohde M, Woyke T, Kyrpides NC, Schumann P, Li WJ, Goker M. Genome-Scale Data Call for a Taxonomic Rearrangement of Geodermatophilaceae. Front Microbiol 2017; 8:2501. Oren A, Garrity GM. List of changes in taxonomic opinion no. 28. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2018; 68:2137-2138.

• Notes:
  • 😷 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 5 times in PubMed until 2025-06-04.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: 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.

Parent taxon: Geodermatophilus Luedemann 1968 (Approved Lists 1980)

Assigned by: Nie GX, Ming H, Li S, Zhou EM, Cheng J, Yu TT, Zhang J, Feng HG, Tang SK, Li WJ. Geodermatophilus nigrescens sp. nov., isolated from a dry-hot valley. Antonie Van Leeuwenhoek 2012; 101:811-817.

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Record number: 790041