Name: Hyphomicrobium denitrificans Urakami et al. 1995

Category: Species

Proposed as: sp. nov.

Etymology: de.ni.tri’fi.cans. N.L. neut. part. adj. denitrificans, denitrifying

Gender: neuter

Type strain: ATCC 51888; Attwood and Harder strain X; DSM 1869; NCIB 11706; NCIMB 11706; TK 0415

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: Y14308 Analyse FASTA

Valid publication: Urakami T, Sasaki J, Suzuki KI, Komagata K. Characterization and description of Hyphomicrobium denitrificans sp. nov. Int. J. Syst. Bacteriol. 1995; 45:528-532.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 45, part 3 of the IJSB. Int J Syst Bacteriol 1995; 45:881.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 😷 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 37 times in PubMed until 2025-06-04.
  • 🧍 The phylogenetic position of this species was determined in a genome-scale analysis by Hördt et al. (2020). Publication: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468.

Parent taxon: Hyphomicrobium Stutzer and Hartleb 1899 (Approved Lists 1980)

Assigned by: Urakami T, Sasaki J, Suzuki KI, Komagata K. Characterization and description of Hyphomicrobium denitrificans sp. nov. Int. J. Syst. Bacteriol. 1995; 45:528-532.

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Record number: 776972