Name: Pseudobacillus badius (Batchelor 1919) Verma et al. 2024

Category: Species

Proposed as: comb. nov.

Basonym: Bacillus badius Batchelor 1919 (Approved Lists 1980)

Etymology: ba’di.us. L. masc. adj. badius, chestnut brown

Pronunciation, gender: BA-di-us, masculine

Type strain: ATCC 14574; CCM 2113; CCUG 7412; CECT 17; CIP 58.52; DSM 23; HAMBI 1885; IFO 15713; JCM 12228; LMG 7122; NBIMCC 2210; NCIB 9364; NCIMB 9364; NCTC 10333; NRRL NRS-663; NRS 663; VKM B-496

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X77790 Analyse FASTA

Effective publication: Verma A, Pal Y, Ojha AK, Kumari M, Khatri I, Rameshkumar N, Schumann P, Dastager SG, Mayilraj S, Subramanian S, et al. Taxonomic insights into the phylogeny of Bacillus badius and proposal for its reclassification to the genus Pseudobacillus as Pseudobacillus badius comb. nov. and reclassification of Bacillus wudalianchiensis Liu et al., 2017 as Pseudobacillus wudalianchiensis comb. nov. Syst Appl Microbiol 2019; 42:360-372.

IJSEM list: Oren A, Göker M. Validation list no. 220. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2024; 74:6501.

Nomenclatural status: validly published under the ICNP

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

• Synonyms:

  • Name	Kind
    Bacillus badius Batchelor 1919 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Bacillus encimensis Dastager et al. 2015	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Pseudobacillus Verma et al. 2024. Publication: Verma A, Pal Y, Ojha AK, Kumari M, Khatri I, Rameshkumar N, Schumann P, Dastager SG, Mayilraj S, Subramanian S, et al. Taxonomic insights into the phylogeny of Bacillus badius and proposal for its reclassification to the genus Pseudobacillus as Pseudobacillus badius comb. nov. and reclassification of Bacillus wudalianchiensis Liu et al., 2017 as Pseudobacillus wudalianchiensis comb. nov. Syst Appl Microbiol 2019; 42:360-372.
  • ⏰ According to Verma et al. (2017), this species is an earlier heterotypic synonym of Bacillus encimensis Dastager et al. 2015. Publication: Verma A, Pal Y, Khatri I, Ojha AK, Gruber-Vodicka H, Schumann P, Dastager S, Subramanian S, Mayilraj S, Krishnamurthi S. Examination into the taxonomic position of Bacillus thermotolerans Yang et al., 2013, proposal for its reclassification into a new genus and species Quasibacillus thermotolerans gen. nov., comb. nov. and reclassification of B. encimensis Dastager et al., 2015 as a later heterotypic synonym of B. badius. Syst Appl Microbiol 2017; 40:411-422.
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. List of changes in taxonomic opinion no. 27. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2018; 68:7-8.
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • 🎓 Name mentioned 2 times in PubMed until 2024-12-10.
  • 🙆 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 other species in the genus.

Parent taxon: Pseudobacillus Verma et al. 2024

Assigned by: Verma A, Pal Y, Ojha AK, Kumari M, Khatri I, Rameshkumar N, Schumann P, Dastager SG, Mayilraj S, Subramanian S, et al. Taxonomic insights into the phylogeny of Bacillus badius and proposal for its reclassification to the genus Pseudobacillus as Pseudobacillus badius comb. nov. and reclassification of Bacillus wudalianchiensis Liu et al., 2017 as Pseudobacillus wudalianchiensis comb. nov. Syst Appl Microbiol 2019; 42:360-372.

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Record number: 55701