Species Bacillus pseudofirmus

Name: Bacillus pseudofirmus Nielsen et al. 1995

Category: Species

Proposed as: sp. nov.

Etymology: pseu.do.fir’mus. Gr. neut. adj. pseudes, false; L. masc. adj. firmus, strong, firm, and also specific epithet; N.L. masc. adj. pseudofirmus, false fimus referring to physiological similarities to Bacillus firmus

Pronunciation (Latin), gender: … pse͡u-do-FIR-mus, masculine

Type strain: ATCC 700159; CIP 105299; DSM 8715; LMG 17944; NCIB 10283; NCIMB 10283; PN-3

Conduct genome-based taxonomy at

16S rRNA gene: X76439 Analyse FASTA

Effective publication: Nielsen P, Fritze D, Priest FG. Phenetic diversity of alkaliphilic Bacillus strains: proposal for nine new species. Microbiology 1995; 141:1745-1761. 🇩🇪

IJSEM list: Anonymous. Validation list no. 55. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1995; 45:879-880.

Nomenclatural status: validly published under the ICNP

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

Correct name: Alkalihalophilus pseudofirmus (Nielsen et al. 1995) Joshi et al. 2022

Risk group: 1

Synonyms:

Name	Kind
Alkalihalophilus pseudofirmus (Nielsen et al. 1995) Joshi et al. 2022	homotypic synonym, validly published under the ICNP
Alkalihalobacillus pseudofirmus (Nielsen et al. 1995) Patel and Gupta 2020	homotypic synonym, validly published under the ICNP

Notes:
- ❗ Bacillus pseudofirmus 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 77 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.

Parent taxon: Bacillus Cohn 1872 (Approved Lists 1980)

Assigned by: Nielsen P, Fritze D, Priest FG. Phenetic diversity of alkaliphilic Bacillus strains: proposal for nine new species. Microbiology 1995; 141:1745-1761. 🇩🇪

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Record number: 773811

This LPSN page was printed on 2026-02-09 01:33:25

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Species Bacillus pseudofirmus