Species ***Bacillus* *cytotoxicus***

Name: Bacillus cytotoxicus Guinebretière et al. 2013

Category: Species

Proposed as: sp. nov.

Etymology: cy.to.to’xi.cus. Gr. neut. n. kytos, prefix denoting pertaining to a cell; N.L. adj. toxicus -a -um, toxic; from N.L. neut. adj. toxicum, poison; N.L. masc. adj. cytotoxicus, cytotoxic, referring to cytotoxin K, an enterotoxin isolated and described from the type strain

Gender: masculine

Type strain: CIP 110041; DSM 22905; NVH 391-98

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AM747234 Analyse FASTA

Valid publication: Guinebretiere MH, Auger S, Galleron N, Contzen M, De Sarrau B, De Buyser ML, Lamberet G, Fagerlund A, Granum PE, Lereclus D, et al. Bacillus cytotoxicus sp. nov. is a novel thermotolerant species of the Bacillus cereus Group occasionally associated with food poisoning. Int J Syst Evol Microbiol 2013; 63:31-40.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 63, part 1 of the IJSEM. Int J Syst Evol Microbiol 2013; 63:1211-1213.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 2

Notes:
- 🧬 The phylogenomic assignment score of this taxon is -0.09146 (N = 105).
- 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human and animal pathogen - human: T - biological class of risk animal: 2". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "+". — 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.
- 🎓 Name mentioned 32 times in PubMed until 2025-06-04.
- 🪓 Organisms assigned to this species have previously been classified as Bacillus cereus Frankland and Frankland 1887 (Approved Lists 1980). Publication: Frankland GC, Frankland PF. Studies on some new microorganisms obtained from air. Royal Society London, Philosophical Transactions, Series B, Biological Sciences 1887; 178:257-287. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
- 🫡 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself. This name is not taxonomically suspended any more in favour of Bacillus cereus Frankland and Frankland 1887 (Approved Lists 1980). Publication: Frankland GC, Frankland PF. Studies on some new microorganisms obtained from air. Royal Society London, Philosophical Transactions, Series B, Biological Sciences 1887; 178:257-287. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
- 🧍 According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.
- 🧍 A genome-scale phylogenetic analysis of the Bacillus cereus group was conducted by Liu et al. (2015). Publication: Liu Y, Lai Q, Goker M, Meier-Kolthoff JP, Wang M, Sun Y, Wang L, Shao Z. Genomic insights into the taxonomic status of the Bacillus cereus group. Sci Rep 2015; 5:14082.

Parent taxon: Bacillus Cohn 1872 (Approved Lists 1980)

Assigned by: Guinebretiere MH, Auger S, Galleron N, Contzen M, De Sarrau B, De Buyser ML, Lamberet G, Fagerlund A, Granum PE, Lereclus D, et al. Bacillus cytotoxicus sp. nov. is a novel thermotolerant species of the Bacillus cereus Group occasionally associated with food poisoning. Int J Syst Evol Microbiol 2013; 63:31-40.

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Record number: 790412

This LPSN page was printed on 2025-07-10 16:38:01

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Species Bacillus cytotoxicus

Species ***Bacillus* *cytotoxicus***