Name: Aquaspirillum itersonii subsp. nipponicum (Terasaki 1973) Terasaki 1979 (Approved Lists 1980)

Category: Subspecies

Proposed as: comb. nov.

Basonym: "Spirillum itersonii subsp. nipponicum" Terasaki 1973

Etymology: nip.po’ni.cum. N.L. neut. adj. nipponicum, pertaining to the country of Japan

Gender: neuter

Type strain: ATCC 33333; CCUG 49448; DSM 11590; IFO 13615; JCM 21427; KF 8; LMG 7370; NBRC 13615

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: EF612766 Analyse FASTA

Effective publication: Terasaki Y. Transfer of five species and two subspecies of Spirillum to other genera (Aquaspirillum and Oceanospirillum), with emended descriptions of the species and subspecies. International Journal of Systematic Bacteriology 1979; 29:130-144.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Novispirillum itersonii subsp. nipponicum (Terasaki 1973) Yoon et al. 2007

Risk group: 1

• Synonyms:

  • Name	Kind
    "Spirillum itersonii subsp. nipponicum" Terasaki 1973	homotypic synonym, not validly published, basonym of name in Approved Lists
    "Levispirillum itersonii subsp. nipponicum" (Terasaki 1973) Pot and Gillis 2005	homotypic synonym, not validly published
    Novispirillum itersonii subsp. nipponicum (Terasaki 1973) Yoon et al. 2007	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Aquaspirillum itersonii subsp. nipponicum is the correct name instead if this subspecies is regarded as a separate subspecies (i.e., if its nomenclatural type is not assigned to another subspecies whose name is validly published, legitimate and not rejected and has priority) within a separate species Aquaspirillum itersonii within a separate genus Aquaspirillum.
  • 😷 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.
  • 🧍 Cited erroneously as synonym of Aquaspirillum serpens until April 1994 in DSMZ List. Publication: Hylemon PB, Wells J. JS, Krieg NR, Jannasch HW. The genus Spirillum: A taxonomic study. International Journal of Systematic Bacteriology 1973; 23:340-380.

Parent taxon: Aquaspirillum itersonii (Giesberger 1936) Hylemon et al. 1973 (Approved Lists 1980)

Assigned by: Terasaki Y. Transfer of five species and two subspecies of Spirillum to other genera (Aquaspirillum and Oceanospirillum), with emended descriptions of the species and subspecies. International Journal of Systematic Bacteriology 1979; 29:130-144.

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Record number: 787034