Name: "Paenalicyclobacillus" Sinninghe Damsté et al. 2025

Category: Genus

Proposed as: gen. nov.

Etymology: Paen.a.li.cy.clo.ba.cil’lus. L. adv. paene, almost; N.L. masc. n. Alicyclobacillus, a bacterial genus name; N.L. masc. n. Paenalicyclobacillus, almost Alicyclobacillus

Gender, pronunciation (Latin): masculine (stem: Paenalicyclobacill-), pa͡en-a-li-ky-klo-ba-KIL-lus

Type species: "Paenalicyclobacillus cycloheptanicus" (Deinhard et al. 1988) Sinninghe Damsté et al. 2025

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 Wisotzkey et al. 1992

• Synonyms:

  • Name	Kind
    Alicyclobacillus Wisotzkey et al. 1992	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🚂 For the type species of this genus another name is in use, which is affiliated with the genus Alicyclobacillus Wisotzkey et al. 1992. Publication: Wisotzkey JD, Jurtshuk PJ, Fox GE, Deinhard G, Poralla K. Comparative sequence analyses on the 16S rRNA (rDNA) of Bacillus acidocaldarius, Bacillus acidoterrestris, and Bacillus cycloheptanicus and proposal for creation of a new genus, Alicyclobacillus gen. nov. Int J Syst Bacteriol 1992; 42:263-269.
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 11; NBRC: 8; JCM: 8; IAM: 6; CGMCC: 4; KCTC: 3; ATCC: 3; HAMBI: 1; LMG: 1; NRIC: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 0
Total number of child taxa: 14

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Paenalicyclobacillus aeris" (Guo et al. 2009) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus cellulosilyticus" (Kusube et al. 2014) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus contaminans" (Goto et al. 2007) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus curvatus" (Jiang et al. 2022) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus cycloheptanicus" (Deinhard et al. 1988) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus disulfidooxidans" (Dufresne et al. 1996) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus ferrooxydans" (Jiang et al. 2008) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus herbarius" (Goto et al. 2002) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus kakegawensis" (Goto et al. 2007) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus macrosporangiidus" (Goto et al. 2007) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus mengziensis" (Jiang et al. 2022) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus pomorum" (Goto et al. 2003) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus shizuokensis" (Goto et al. 2007) Sinninghe Damsté et al. 2025	not validly published	synonym
    "Paenalicyclobacillus tolerans" Sinninghe Damsté et al. 2025	not validly published	preferred name

Parent taxon: Alicyclobacillaceae da Costa and Rainey 2010

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. 🇳🇱

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Record number: 67527