Species Bacillus simplex

Name: Bacillus simplex (ex Meyer and Gottheil 1901) Priest et al. 1989

Category: Species

Proposed as: sp. nov., nom. rev.

Etymology: sim’plex. L. masc. adj. simplex, simple

Pronunciation (Latin), gender: … SIM-pleks, masculine

Type strain: ATCC 49097; CCUG 28889; CIP 106934; DSM 1321; LMG 11160; NRRL NRS-960; NRS 960

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ439078 Analyse FASTA

Effective publication: Priest FG, Goodfellow M, Todd C. A numerical classification of the genus Bacillus. J Gen Microbiol 1988; 134:1847-1882. 🇬🇧

IJSEM list: Anonymous. Validation list no. 28. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1989; 39:93-94.

Nomenclatural status: validly published under the ICNP

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

Correct name: Peribacillus simplex (Priest et al. 1989 ex Meyer and Gottheil 1901) Patel and Gupta 2020

Risk group: 1

Synonyms:

Name	Kind
Peribacillus simplex (Priest et al. 1989 ex Meyer and Gottheil 1901) Patel and Gupta 2020	homotypic synonym, validly published under the ICNP

Emendations:
- Heyrman et al. 2005 Heyrman J, Logan NA, Rodriguez-Diaz M, Scheldeman P, Lebbe L, Swings J, Heyndrickx M, De Vos P. Study of mural painting isolates, leading to the transfer of 'Bacillus maroccanus' and 'Bacillus carotarum' to Bacillus simplex, emended description of Bacillus simplex, re-examination of the strains previously attributed to 'Bacillus macroides' and description of Bacillus muralis sp. nov. Int J Syst Evol Microbiol 2005; 55:119-131. 🇧🇪 Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 55, part 1 of the IJSEM. Int J Syst Evol Microbiol 2005; 55:987-991.
  Notes:
  - 🧍 Bacillus simplex (ex Meyer and Gottheil 1901) Priest et al. 1989 emend. Heyrman et al. 2005 also encompasses strains belonging to "Bacillus maroccanus" Delaporte and Sasson 1967, strains belonging to "Bacillus carotarum" Koch 1888, and the strain LMG 18508 = NCIMB 8796 of "Bacillus macroides".

Notes:
- ❗ Bacillus simplex 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 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. — 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.
- 🎓 Name mentioned 86 times in PubMed until 2025-06-04.
- 🙅 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 risk group of other species in the genus.
- 🧍 In the effective publication by Priest et al. 1988, this name is cited as Bacillus simplex (ex Gottheil 1901) Priest et al. 1989. However, according to the Index Bergeyana, the synonym is "Bacillus simplex" Meyer and Gottheil 1901 in Gottheil 1901. Publication: Buchanan RE, Holt JG, Lessel Jr. EF. Index Bergeyana. The Williams & Wilkins Co, Baltimore, 1966.

Parent taxon: Bacillus Cohn 1872 (Approved Lists 1980)

Assigned by: Priest FG, Goodfellow M, Todd C. A numerical classification of the genus Bacillus. J Gen Microbiol 1988; 134:1847-1882. 🇬🇧

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Record number: 773834

This LPSN page was printed on 2026-02-14 14:53:27

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Species Bacillus simplex