Name: Bacillus subtilis subsp. spizizenii Nakamura et al. 1999

Category: Subspecies

Proposed as: subsp. nov.

Etymology: spi.zi.ze’ni.i. N.L. gen. masc. n. spizizenii, of Spizizen, named after the American bacteriologist J. Spizizen

Pronunciation, gender: spi-zi-ZE-ni-i, masculine

Type strain: BCRC 17366; CIP 106094; DSM 15029; LMG 19156; NBRC 101239; NRRL B-23049; TU-B-10

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: MN536905 Analyse FASTA

Valid publication: Nakamura LK, Roberts MS, Cohan FM. Relationship of Bacillus subtilis clades associated with strains 168 and W23: a proposal for Bacillus subtilis subsp. subtilis subsp. nov. and Bacillus subtilis subsp. spizizenii subsp. nov. Int J Syst Bacteriol 1999; 49:1211-1215. 🇺🇸

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 49, part 3 of the IJSB. Int J Syst Bacteriol 1999; 49:1327-1328.

Nomenclatural status: validly published under the ICNP

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

Correct name: Bacillus spizizenii (Nakamura et al. 1999) Dunlap et al. 2020

Risk group: 1

• Synonyms:

  • Name	Kind
    Bacillus spizizenii (Nakamura et al. 1999) Dunlap et al. 2020	homotypic synonym, validly published under the ICNP, distinct rank

• Notes:
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • ❗ Bacillus subtilis subsp. spizizenii 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 Bacillus subtilis within a separate genus Bacillus.
  • 😷 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, note = "PIIC". — 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.
  • 🙅 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 subspecies. The name is on LoRN because of the recorded risk group of other species in the genus.
  • 🧍 See also Ruiz-Garcia et al. (2005). Publication: Ruiz-Garcia C, Quesada E, Martinez-Checa F, Llamas I, Urdaci MC, Bejar V. Bacillus axarquiensis sp. nov. and Bacillus malacitensis sp. nov., isolated from river-mouth sediments in southern Spain. Int J Syst Evol Microbiol 2005; 55:1279-1285. 🇪🇸

Parent taxon: Bacillus subtilis (Ehrenberg 1835) Cohn 1872 (Approved Lists 1980)

Assigned by: Nakamura LK, Roberts MS, Cohan FM. Relationship of Bacillus subtilis clades associated with strains 168 and W23: a proposal for Bacillus subtilis subsp. subtilis subsp. nov. and Bacillus subtilis subsp. spizizenii subsp. nov. Int J Syst Bacteriol 1999; 49:1211-1215. 🇺🇸

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Record number: 773848