Name: Paenalicyclobacillus contaminans (Goto et al. 2007) Sinninghe Damsté et al. 2026

Category: Species

Proposed as: comb. nov.

Basonym: Alicyclobacillus contaminans Goto et al. 2007

Etymology: con.ta’mi.nans. L. masc. part. adj. contaminans, contaminating, referring to contamination of fruit juice

Pronunciation (Latin), gender: pa͡en-a-li-ky-klo-ba-KIL-lus kon-TA-mi-nans, masculine

Type strain: 3-A191; DSM 17975; IAM 15224; JCM 21678; NBRC 103102

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB264026 Analyse FASTA

Effective publication: Sinninghe Damste JS, Villanueva L, Pukall R. A chemotaxonomic and phylogenomic re-evaluation of the genus Alicyclobacillus: A proposal for reclassification of about half of the species into the new genus, Paenalicyclobacillus gen. nov., with an emended description of the genus Alicyclobacillus, and recognition that the names Alicyclobacillus tengchongensis and Alicyclobacillus montanus are later heterotypic synonyms of Alicyclobacillus tolerans. Syst Appl Microbiol 2025; 48:126651. 🇳🇱

IJSEM list: Oren A, Göker M. Validation list no. 228. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2026; 76:7052.

Nomenclatural status: validly published under the ICNP

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

Correct name: Alicyclobacillus contaminans Goto et al. 2007

• Synonyms:

  • Name	Kind
    Alicyclobacillus contaminans Goto et al. 2007	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Paenalicyclobacillus contaminans 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 Paenalicyclobacillus.
  • 🎓 Name mentioned 0 times in PubMed until 2026-06-11.
  • 🙅 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 pathogenicity of other species in the genus.

Parent taxon: Paenalicyclobacillus Sinninghe Damsté et al. 2026

Assigned by: Sinninghe Damste JS, Villanueva L, Pukall R. A chemotaxonomic and phylogenomic re-evaluation of the genus Alicyclobacillus: A proposal for reclassification of about half of the species into the new genus, Paenalicyclobacillus gen. nov., with an emended description of the genus Alicyclobacillus, and recognition that the names Alicyclobacillus tengchongensis and Alicyclobacillus montanus are later heterotypic synonyms of Alicyclobacillus tolerans. Syst Appl Microbiol 2025; 48:126651. 🇳🇱

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.68885Copy to clipboardLink copied to clipboard

Record number: 68885

• Previous versions:

  • Version	Date	JSON
    1	2026-03-31
    2	2026-07-13