Name: Paenacidovorax caeni (Heylen et al. 2008) Du et al. 2023

Category: Species

Proposed as: comb. nov.

Basonym: Acidovorax caeni Heylen et al. 2008

Etymology: cae’ni. L. gen. neut. n. caeni, of sludge

Pronunciation, gender: KA͡E-ni, masculine

Type strain: DSM 19327; LMG 24103; R-24608

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AM084006 Analyse FASTA

Effective publication: Du J, Liu Y, Zhu H. Genome-based analyses of the genus Acidovorax: proposal of the two novel genera Paracidovorax gen. nov., Paenacidovorax gen. nov. and the reclassification of Acidovorax antarcticus as Comamonas antarctica comb. nov. and emended description of the genus Acidovorax. Arch Microbiol 2022; 205:42.

IJSEM list: Oren A, Göker M. Validation list no. 211. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2023; 73:5845.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Acidovorax caeni Heylen et al. 2008

• Synonyms:

  • Name	Kind
    Acidovorax caeni Heylen et al. 2008	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Paenacidovorax Du et al. 2023. Publication: Du J, Liu Y, Zhu H. Genome-based analyses of the genus Acidovorax: proposal of the two novel genera Paracidovorax gen. nov., Paenacidovorax gen. nov. and the reclassification of Acidovorax antarcticus as Comamonas antarctica comb. nov. and emended description of the genus Acidovorax. Arch Microbiol 2022; 205:42.
  • ❗ Paenacidovorax caeni 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 Paenacidovorax.
  • 🎓 Name mentioned 0 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 genus.

Parent taxon: Paenacidovorax Du et al. 2023

Assigned by: Du J, Liu Y, Zhu H. Genome-based analyses of the genus Acidovorax: proposal of the two novel genera Paracidovorax gen. nov., Paenacidovorax gen. nov. and the reclassification of Acidovorax antarcticus as Comamonas antarctica comb. nov. and emended description of the genus Acidovorax. Arch Microbiol 2022; 205:42.

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Record number: 35111