Name: Heyndrickxia coagulans (Hammer 1915) Narsing Rao et al. 2023

Category: Species

Proposed as: comb. nov.

Basonym: Bacillus coagulans Hammer 1915 (Approved Lists 1980)

Etymology: co.a’gu.lans. L. v. coagulo, to curdle or coagulate; L. fem. part. adj. coagulans, curdling, coagulating

Pronunciation (Latin), gender: heyn-DRIKK-xi-a ko-A-gu-lans, feminine

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 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

Valid 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. 🇹🇭

IJSEM list: 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.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

• Synonyms:

  • Name	Kind
    Weizmannia coagulans (Hammer 1915) Gupta et al. 2020	homotypic synonym, validly published under the ICNP
    Bacillus coagulans Hammer 1915 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 😩 Deposits incorrectly indicated in some sources as representing the type strain of this taxon: NCAIM B.01086; VKM B-731.
  • 🧬 The phylogenomic assignment score of this taxon is 0.01006 (N = 100).
  • 😷 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 48 times in PubMed until 2026-06-11.
  • 🫡 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 coagulans Hammer 1915 (Approved Lists 1980). Publication: Hammer BW. Bacteriological studies on the coagulation of evaporated milk. Iowa Agricultural Experimental Station Research Bulletin 1915; 19:119-131. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Parent taxon: Heyndrickxia Gupta et al. 2020

Assigned by: 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. 🇹🇭

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.39735Copy to clipboardLink copied to clipboard

Record number: 39735

• Previous versions:

  • Version	Date	JSON
    1	2026-03-31