Name: Priestia megaterium (de Bary 1884) Gupta et al. 2020

Category: Species

Proposed as: comb. nov.

Basonym: Bacillus megaterium de Bary 1884 (Approved Lists 1980)

Etymology: me.ga.te’ri.um. Gr. masc. adj. megas, large; Gr. neut. n. teras, monster, beast; N.L. neut. n. megaterium, big beast (nominative in apposition)

Gender: feminine

Type strain: ATCC 14581; BCRC 10608; CCM 2007; CCRC 10608; CCUG 1817; CIP 66.20; DSM 32; HAMBI 2018; IAM 13418; IFO 15308; JCM 2506; KCTC 3007; LMG 7127; NBIMCC 8947; NBRC 15308; NCCB 75016; NCIB 9376; NCIMB 9376; NCTC 10342; NRIC 1710; NRRL B-14308; VKM B-512

Conduct genome-based taxonomy at

16S rRNA gene: KJ569088 Analyse FASTA

Valid publication: Gupta RS, Patel S, Saini N, Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. Int J Syst Evol Microbiol 2020; 70:5753-5798. 🇨🇦

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 11 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4645.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

• Synonyms:

  • Name	Kind
    Bacillus megaterium de Bary 1884 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Priestia Gupta et al. 2020. Publication: Gupta RS, Patel S, Saini N, Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. Int J Syst Evol Microbiol 2020; 70:5753-5798. 🇨🇦
  • ⏰ According to Gupta et al. (2020), this species is not an earlier heterotypic synonym of Bacillus aryabhattai Shivaji et al. 2009. Publication: Gupta RS, Patel S, Saini N, Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. Int J Syst Evol Microbiol 2020; 70:5753-5798. 🇨🇦
  • ⏰ According to Gupta et al. (2020), this species is not an earlier heterotypic synonym of Priestia aryabhattai (Shivaji et al. 2009) Gupta et al. 2020. Publication: Gupta RS, Patel S, Saini N, Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. Int J Syst Evol Microbiol 2020; 70:5753-5798. 🇨🇦
  • ⏰ According to Narsing-Rao et al. (2019), this species is an earlier heterotypic synonym of Bacillus aryabhattai Shivaji et al. 2009. Publication: Narsing Rao MP, Dong ZY, Liu GH, Li L, Xiao M, Li WJ. Reclassification of Bacillus aryabhattai Shivaji et al. 2009 as a later heterotypic synonym of Bacillus megaterium de Bary 1884 (Approved Lists 1980). FEMS Microbiol Lett 2019; 366:fnz258. 🇨🇳
  • ⏰ According to Narsing-Rao et al. (2019), this species is an earlier heterotypic synonym of Priestia aryabhattai (Shivaji et al. 2009) Gupta et al. 2020. Publication: Narsing Rao MP, Dong ZY, Liu GH, Li L, Xiao M, Li WJ. Reclassification of Bacillus aryabhattai Shivaji et al. 2009 as a later heterotypic synonym of Bacillus megaterium de Bary 1884 (Approved Lists 1980). FEMS Microbiol Lett 2019; 366:fnz258. 🇨🇳
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 1, note = "animal pathogen - biological class of risk animal: 2 - plant pathogen - biological class of risk plant: 2". — 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". — 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 138 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 other species in the genus.

Parent taxon: Priestia Gupta et al. 2020

Assigned by: Gupta RS, Patel S, Saini N, Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. Int J Syst Evol Microbiol 2020; 70:5753-5798. 🇨🇦

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Record number: 14830