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Taxonomy browser (Bacillota)


Taxonomy ID: 1239 (for references in articles please use NCBI:txid1239)
current name
Bacillota corrig. Gibbons and Murray 2021 in [Oren A & Garrity GM (2021)]
homotypic synonym:
"Bacillota" Whitman et al. 2018, effective name 1) in [Whitman WB et al. (2018)]
homotypic synonym:
"Firmicutes" corrig. Gibbons and Murray 1978 (Approved Lists 1980), effective name 1)
"Bacillaeota" Oren et al. 2015, effective name 1) in [Oren A et al. (2015)]
homotypic synonym:
"Firmacutes" Gibbons and Murray 1978, effective name, orth. var., nom. approb. 1),2),3)
"Firmicuteota" Panda et al. 2022, effective name, orth. var. 1),2) in [Panda A et al. (2022)]
NCBI BLAST name: firmicutes
Rank: phylum
Genetic code: Translation table 11 (Bacterial, Archaeal and Plant Plastid)
Other names:
heterotypic synonym
Bacillus/Clostridium group
heterotypic synonym
Clostridium group firmicutes
heterotypic synonym
Low G+C firmicutes
heterotypic synonym
clostridial firmicutes
common name(s) low G+C Gram-positive bacteria, low GC Gram+
blast name
Lineage( full )
cellular organisms; Bacteria; Terrabacteria group
   Entrez records   
Database name Subtree links Direct links
Nucleotide 17,912,682 1
Protein 211,868,806 26,860
Structure 14,819 -
Genome 5,735 1
Popset 16,630 9,028
Conserved Domains 2,186 622
GEO Datasets 29,753 -
PubMed Central 482,207 43,016
Gene 5,051,202 -
SRA Experiments 537,864 2,470
GEO Profiles 151,987 -
Protein Clusters 214,957 4,278
Identical Protein Groups 70,448,889 26,829
BioProject 37,173 102
BioSample 931,079 2,789
Assembly 322,293 -
Genetic Testing Registry 3 -
PubChem BioAssay 54,290 -
Taxonomy 89,429 1


Comments and References:

Oren A & Garrity GM (2021), PubMed: abstract
Oren, A., and Garrity, G.M. "Valid publication of the names of forty-two phyla of prokaryotes." Int. J. Syst. Evol. Microbiol. (2021) 71(10):005056.
Whitman WB et al. (2018), PubMed: abstract
Whitman, W.B., Oren, A., Chuvochina, M., da Costa, M.S., Garrity, G.M., Rainey, F.A., Rossello-Mora, R., Schink, B., Sutcliffe, I., Trujillo, M.E., and Ventura, S. "Proposal of the suffix -ota to denote phyla. Addendum to 'Proposal to include the rank of phylum in the International Code of Nomenclature of Prokaryotes'." Int. J. Syst. Evol. Microbiol. (2018) 68(3):967-969.
Panda A et al. (2022), PubMed: abstract
Panda, A., Islam, S.T., and Sharma, G. "Harmonizing prokaryotic nomenclature: Fixing the fuss over phylum name flipping." mBio (2022) 13(3):e0097022.
Oren A et al. (2015), PubMed: abstract
Oren, A., da Costa, M.S., Garrity, G.M., Rainey, F.A., Rosselló-Móra, R., Schink, B., Sutcliffe, I., Trujillo, M.E., and Whitman, W.B. "Proposal to include the rank of phylum in the International Code of Nomenclature of Prokaryotes." Int. J. Syst. Evol. Microbiol. (2015) 65(11):4284-4287.
Ahmad S et al. (1999)
Ahmad, S., Selvapandiyan, A., and Bhatnagar, R.K. "A protein-based phylogenetic tree for gram-positive bacteria derived from hrcA, a unique heat-shock regulatory gene." Int. J. Syst. Bacteriol. (1999) 49:1387-1394.
BMSB 2nd ed. Taxonomic Outline
Garrity, G.M., and Holt, J.G. "Taxonomic Outline of the Archaea and Bacteria." In: Bergey's Manual of Systematic Bacteriology, 2nd ed., vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria) (D.R. Boone and R.W. Castenholz, eds.), Springer-Verlag, New York (2001). pp. 155-166. [No PubMed record available.]
Ahmad S et al. (2000b)
Ahmad, S., Selvapandiyan, A., and Bhatnagar, R.K. "Phylogenetic analysis of gram-positive bacteria based on grpE, encoded by the dnaK operon." Int. J. Syst. Evol. Microbiol. (2000) 50:1761-1766.
Gibbons NE & Murray RGE (1978)
Gibbons, N.E., and Murray, R.G.E. "Proposals concerning the higher taxa of bacteria." Int. J. Syst. Bacteriol. (1978) 28(1):1-6. [No PubMed record available.]
Murray RGE (1984)
Murray, R.G.E. "The higher taxa, or, a place for everything...?" In: N.R. Krieg and J.G. Holt (eds.) Bergey's Manual of Systematic Bacteriology, vol. 1, The Williams & Wilkins Co., Baltimore (1984). pp. 31-34. [No PubMed record available.]
Skerman VBD et al. (1980)
Skerman, V.B.D., McGowan, V., and Sneath, P.H.A. (editors). "Approved lists of bacterial names." Int. J. Syst. Bacteriol. (1980) 30:225-420. [No PubMed record available.]
Woese CR et al. (1985)
Woese, C.R., Stackebrandt, E., Macke, T.J., and Fox, G.E. "A phylogenetic definition of the major eubacterial taxa." Syst. Appl. Microbiol. (1985) 6:143-151.
Wolf M et al. (2004)
Wolf, M., Muller, T., Dandekar, T., and Pollack, J.D. "Phylogeny of Firmicutes with special reference to Mycoplasma (Mollicutes) as inferred from phosphoglycerate kinase amino acid sequence data." Int. J. Syst. Evol. Microbiol. (2004) 54:871-875. Published online 12 December 2003: DOI 10.1099/ijs.0.02868-0
Zhang W & Lu Z (2015)
Zhang, W., and Lu, Z. "Phylogenomic evaluation of members above the species level within the phylum Firmicutes based on conserved proteins." Environ. Microbiol. Rep. (2015) 7:273-281.

External Information Resources (NCBI LinkOut)

LinkOut Subject LinkOut Provider
Firmicutes taxonomy/phylogenetic Encyclopedia of life
249 records from this provider organism-specific Integrated Microbial Genomes
Firmicutes taxonomy/phylogenetic Lifemap
OMA taxonomy/phylogenetic OMA Browser: Orthologous MAtrix
Firmicutes taxonomy/phylogenetic World Register of Marine Species
Wikipedia taxonomy/phylogenetic iPhylo
Groups interested in participating in the LinkOut program should visit the LinkOut home page.
A list of our current non-bibliographic LinkOut providers can be found here.

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Disclaimer: The NCBI taxonomy database is not an authoritative source for nomenclature or classification - please consult the relevant scientific literature for the most reliable information.

Reference: How to cite this resource - Schoch CL, et al. NCBI Taxonomy: a comprehensive update on curation, resources and tools. Database (Oxford). 2020: baaa062. PubMed: 32761142 PMC: PMC7408187.

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