Name: Curvibacter delicatus (Leifson 1962) Ding and Yokota 2004

Category: Species

Proposed as: comb. nov.

Basonym: "Spirillum delicatum" Leifson 1962

Etymology: de.li.ca’tus. L. masc. part. adj. delicatus, delicate

Gender: masculine

Type strain: ATCC 14667; CCUG 15846; DSM 11558; IAM 14955; IFO 14919; JCM 15147; JCM 21432; LMG 4328; NBRC 14919

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF078756 Analyse FASTA

Valid publication: Ding L, Yokota A. Proposals of Curvibacter gracilis gen. nov., sp. nov. and Herbaspirillum putei sp. nov. for bacterial strains isolated from well water and reclassification of [Pseudomonas] huttiensis, [Pseudomonas] lanceolata, [Aquaspirillum] delicatum and [Aquaspirillum] autotrophicum as Herbaspirillum huttiense comb. nov., Curvibacter lanceolatus comb. nov., Curvibacter delicatus comb. nov. and Herbaspirillum autotrophicum comb. nov. Int J Syst Evol Microbiol 2004; 54:2223-2230.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 54, part 6 of the IJSEM. Int J Syst Evol Microbiol 2005; 55:551-554.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

• Synonyms:

  • Name	Kind
    "Spirillum delicatum" Leifson 1962	homotypic synonym, not validly published, basonym of name in Approved Lists
    Aquaspirillum delicatum (Leifson 1962) Hylemon et al. 1973 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — 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 3 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 genus.

Parent taxon: Curvibacter Ding and Yokota 2004

Assigned by: Ding L, Yokota A. Proposals of Curvibacter gracilis gen. nov., sp. nov. and Herbaspirillum putei sp. nov. for bacterial strains isolated from well water and reclassification of [Pseudomonas] huttiensis, [Pseudomonas] lanceolata, [Aquaspirillum] delicatum and [Aquaspirillum] autotrophicum as Herbaspirillum huttiense comb. nov., Curvibacter lanceolatus comb. nov., Curvibacter delicatus comb. nov. and Herbaspirillum autotrophicum comb. nov. Int J Syst Evol Microbiol 2004; 54:2223-2230.

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Record number: 775335