Species Bacillus flexus

Name: Bacillus flexus (ex Batchelor 1919) Priest et al. 1989

Category: Species

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

Etymology: fle’xus. L. masc. part. adj. flexus, flexible

Pronunciation (Latin), gender: ba-KIL-lus FLE-xus, masculine

Type strain: ATCC 49095; CCUG 28525; CIP 106928; DSM 1320; HAMBI 2080; IFO 15715; JCM 12301; LMG 11155; NBRC 15715; NRRL NRS-665; NRS 665

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB021185 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: Priestia flexa (Priest et al. 1989 ex Batchelor 1919) Gupta et al. 2020

Risk group: 1

Synonyms:

Name	Kind
Priestia flexa (Priest et al. 1989 ex Batchelor 1919) Gupta et al. 2020	homotypic synonym, validly published under the ICNP

Notes:
- ❗ Bacillus flexus 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 2026-08-13. 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 108 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 risk group of other species in the genus.

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. 🇬🇧

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.773703Link copied to clipboard

Record number: 773703

This LPSN page was printed on 2026-08-20 00:03:09

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Species Bacillus flexus