Name: "Paenalicyclobacillus tolerans" (Karavaiko et al. 2005) Sinninghe Damsté et al. 2025

Category: Species

Proposed as: comb. nov.

Basonym: Alicyclobacillus tolerans Karavaiko et al. 2005

Etymology: to’le.rans. L. masc. part. adj. tolerans, tolerant to changes in the growth temperature and pH

Pronunciation (Latin), gender: pa͡en-a-li-ky-klo-ba-KIL-lus TO-le-rans, masculine

Nomenclatural type: DSM 16297; K1; VKM B-2304

Conduct genome-based taxonomy at

16S rRNA gene: Z21979 Analyse FASTA

Original 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. 🇳🇱

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Alicyclobacillus tolerans Karavaiko et al. 2005

• Synonyms:

  • Name	Kind
    Alicyclobacillus montanus López et al. 2018	heterotypic synonym, validly published under the ICNP
    Alicyclobacillus tengchongensis Kim et al. 2016	heterotypic synonym, validly published under the ICNP
    Alicyclobacillus tolerans Karavaiko et al. 2005	homotypic synonym, validly published under the ICNP

• Notes:
  • ⏰ According to Sinninghe-Damste et al. (2025), this species is an earlier heterotypic synonym of Alicyclobacillus montanus López et al. 2018. 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. 🇳🇱
  • ⏰ According to Sinninghe-Damste et al. (2025), this species is an earlier heterotypic synonym of Alicyclobacillus tengchongensis Kim et al. 2016. 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. 🇳🇱
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Göker M. List of changes in taxonomic opinion no. 44. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2026; 76:7140.
  • 😩 Deposit incorrectly indicated in some sources as representing the type strain of this taxon: DSM 116297.

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.67618Copy to clipboardLink copied to clipboard

Record number: 67618

• Previous versions:

  • Version	Date	JSON
    1	2026-03-31