Name: Castellaniella defragrans (Foss et al. 1998) Kämpfer et al. 2006

Category: Species

Proposed as: comb. nov.

Basonym: Alcaligenes defragrans Foss et al. 1998

Etymology: de.fra’grans. L. fem. part. adj. defragrans, annihilating fragrance, referring to the capicity to degrade monoterpenes

Pronunciation (Latin), gender: … de-FRA-grans, feminine

Type strain: 54Pin; CCUG 39790; CIP 105602; DSM 12141; LMG 18538

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ005447 Analyse FASTA

Valid publication: Kampfer P, Denger K, Cook AM, Lee ST, Jackel U, Denner EB, Busse HJ. Castellaniella gen. nov., to accommodate the phylogenetic lineage of Alcaligenes defragrans, and proposal of Castellaniella defragrans gen. nov., comb. nov. and Castellaniella denitrificans sp. nov. Int J Syst Evol Microbiol 2006; 56:815-819. 🇩🇪

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 56, part 4 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:1461-1462.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 2

• Synonyms:

  • Name	Kind
    Alcaligenes defragrans Foss et al. 1998	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Castellaniella Kämpfer et al. 2006. Publication: Kampfer P, Denger K, Cook AM, Lee ST, Jackel U, Denner EB, Busse HJ. Castellaniella gen. nov., to accommodate the phylogenetic lineage of Alcaligenes defragrans, and proposal of Castellaniella defragrans gen. nov., comb. nov. and Castellaniella denitrificans sp. nov. Int J Syst Evol Microbiol 2006; 56:815-819. 🇩🇪
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — 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 23 times in PubMed until 2025-06-04.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.

Parent taxon: Castellaniella Kämpfer et al. 2006

Assigned by: Kampfer P, Denger K, Cook AM, Lee ST, Jackel U, Denner EB, Busse HJ. Castellaniella gen. nov., to accommodate the phylogenetic lineage of Alcaligenes defragrans, and proposal of Castellaniella defragrans gen. nov., comb. nov. and Castellaniella denitrificans sp. nov. Int J Syst Evol Microbiol 2006; 56:815-819. 🇩🇪

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Record number: 774494