Species ***Bacillus* *coagulans***

Name: Bacillus coagulans Hammer 1915 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: co.a’gu.lans. L. masc. part. adj. coagulans, curdling, coagulating

Gender: masculine

Type strain: 609; ATCC 7050; BCRC 10606; CCM 2013; CCRC 10606; CCUG 7417; CFBP 4225; CIP 66.25; DSM 1; HAMBI 1931; IAM 1115; IFO 12583; IMET 10993; JCM 2257; KACC 11248; LMG 17450; LMG 17455; LMG 6326; NBIMCC 8941; NBRC 12583; NCCB 48014; NCCB 77025; NCDO 1761; NCFB 1761; NCIB 9365; NCIMB 9365; NCTC 10334; NRIC 1005; NRRL NRS-609; NRS 609; VKM B-497

Conduct genome-based taxonomy at

16S rRNA gene: AB271752 Analyse FASTA

Effective publication: Hammer BW. Bacteriological studies on the coagulation of evaporated milk. Iowa Agricultural Experimental Station Research Bulletin 1915; 19:119-131.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

Synonyms:

Name	Kind
Weizmannia coagulans (Hammer 1915) Gupta et al. 2020	homotypic synonym, validly published under the ICNP
Heyndrickxia coagulans (Hammer 1915) Narsing Rao et al. 2023	homotypic synonym, validly published under the ICNP

Emendations:
- De Clerck et al. 2004 De Clerck E, Rodriguez-Diaz M, Forsyth G, Lebbe L, Logan NA, DeVos P. Polyphasic characterization of Bacillus coagulans strains, illustrating heterogeneity within this species, and emended description of the species. Syst Appl Microbiol 2004; 27:50-60. Euzeby JP. List of changes in taxonomic opinion no. 1. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2005; 55:7-8.

Notes:
- 😩 Deposits incorrectly indicated in some sources as representing the type strain of this taxon: NCAIM B.01086; VKM B-731.
- 😷 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 = 2, note = "PIIC". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "+". — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 1, note = "P650 = v". — 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 873 times in PubMed until 2025-06-04.
- 🙆 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 retained (and recommended for medical use. This will change in the future) instead of Heyndrickxia coagulans (Hammer 1915) Narsing Rao et al. 2023. Publication: Narsing Rao MP, Banerjee A, Liu GH, Thamchaipenet A. Genome-based reclassification of Bacillus acidicola, Bacillus pervagus and the genera Heyndrickxia, Margalitia and Weizmannia. Int J Syst Evol Microbiol 2023; 73:5961. Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 73, part 7 of the IJSEM. Int J Syst Evol Microbiol 2023; 73:6041.
- 🧍 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.
- 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683.

Parent taxon: Bacillus Cohn 1872 (Approved Lists 1980)

Assigned by: Hammer BW. Bacteriological studies on the coagulation of evaporated milk. Iowa Agricultural Experimental Station Research Bulletin 1915; 19:119-131.

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Record number: 773679

This LPSN page was printed on 2025-07-18 08:22:02

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Species Bacillus coagulans

Species ***Bacillus* *coagulans***