Name: Hydrogenophaga caeni Chung et al. 2007

Category: Species

Proposed as: sp. nov.

Etymology: cae’ni. L. gen. neut. n. caeni, of mud, referring to isolation of the type strain from activated sludge

Pronunciation, gender: KA͡E-ni, feminine

Type strain: DSM 17962; EMB71; KCTC 12613

See detailed strain information at

16S rRNA gene: DQ372983 Analyse FASTA

Valid publication: Chung BS, Ryu SH, Park M, Jeon Y, Chung YR, Jeon CO. Hydrogenophaga caeni sp. nov., isolated from activated sludge. Int J Syst Evol Microbiol 2007; 57:1126-1130.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 57, part 5 of the IJSEM. Int J Syst Evol Microbiol 2007; 57:1675-1676.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• 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.

Parent taxon: Hydrogenophaga Willems et al. 1989

Assigned by: Chung BS, Ryu SH, Park M, Jeon Y, Chung YR, Jeon CO. Hydrogenophaga caeni sp. nov., isolated from activated sludge. Int J Syst Evol Microbiol 2007; 57:1126-1130.

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Record number: 786299