Name: Hydrogenophaga atypica Kämpfer et al. 2005

Category: Species

Proposed as: sp. nov.

Etymology: a.ty’pi.ca. Gr. pref. a-, not (inseparable prefix); L. adj. typicus -a -um, typical; from Gr. masc. adj. typikos, typical; N.L. fem. adj. atypica, atypical

Pronunciation (Latin), gender: hy-dro-ge-NO-p^ha-ga a-TY-pi-ka, feminine

Type strain: BSB 41.8; CIP 108118; DSM 15342

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ585992 Analyse FASTA

Valid publication: Kampfer P, Schulze R, Jackel U, Malik KA, Amann R, Spring S. Hydrogenophaga defluvii sp. nov. and Hydrogenophaga atypica sp. nov., isolated from activated sludge. Int J Syst Evol Microbiol 2005; 55:341-344. 🇩🇪

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 55, part 1 of the IJSEM. Int J Syst Evol Microbiol 2005; 55:987-991.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 😷 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 5 times in PubMed until 2026-06-11.

Parent taxon: Hydrogenophaga Willems et al. 1989

Assigned by: Kampfer P, Schulze R, Jackel U, Malik KA, Amann R, Spring S. Hydrogenophaga defluvii sp. nov. and Hydrogenophaga atypica sp. nov., isolated from activated sludge. Int J Syst Evol Microbiol 2005; 55:341-344. 🇩🇪

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Record number: 776943