Name: Betaproteobacteria Garrity et al. 2006

Category: Class

Proposed as: class. nov.

Etymology: Be.ta.pro.te.o.bac.te’ri.a. Gr. neut. n. bêta, name of the second letter of Greek alphabet; Gr. masc. n. Prôteus, Greek god of the sea, capable of assuming many different shapes; N.L. masc. n. bacter, a rod; N.L. neut. pl. suff. -ia, ending to denote a class; N.L. neut. pl. n. Betaproteobacteria, a class of bacteria included in the phylum Proteobacteria and having 16S rRNA gene sequences related to those of the members of the order Spirillales

Gender: neuter

Type order: Burkholderiales Garrity et al. 2006

Effective publication: Garrity GM, Bell JA, Lilburn T. Class II. Betaproteobacteria class. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 575.

IJSEM list: Euzeby JP. Validation list no. 107. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2006; 56:1-6.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Emendations:
  • Boden et al. 2017 Boden R, Hutt LP, Rae AW. Reclassification of Thiobacillus aquaesulis (Wood & Kelly, 1995) as Annwoodia aquaesulis gen. nov., comb. nov., transfer of Thiobacillus (Beijerinck, 1904) from the Hydrogenophilales to the Nitrosomonadales, proposal of Hydrogenophilalia class. nov. within the 'Proteobacteria', and four new families within the orders Nitrosomonadales and Rhodocyclales. Int J Syst Evol Microbiol 2017; 67:1191-1205. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 67, part 5 of the IJSEM. Int J Syst Evol Microbiol 2017; 67:2495-2498.
    Notes:
    • Emendation accompanied by the removal of 1 order from the class.

• Notes:
  • Cavalier-Smith (2006) assigned this class to the subphylum "Rhodobacteria" Cavalier-Smith 2002. Publication: Cavalier-Smith T. Rooting the tree of life by transition analyses. Biol Direct 2006; 1:19.
  • Johnson et al. (2014) assigned the genus "Ferrovum" to this class. Publication: Johnson DB, Hallberg KB, Hedrich S. Uncovering a microbial enigma: isolation and characterization of the streamer-generating, iron-oxidizing, acidophilic bacterium "Ferrovum myxofaciens". Appl Environ Microbiol 2014; 80:672-680.
  • Kojima et al. (2017) assigned the genus Sulfuritortus Kojima et al. 2017 to this class. Publication: Kojima H, Watanabe M, Fukui M. Sulfuritortus calidifontis gen. nov., sp. nov., a sulfur oxidizer isolated from a hot spring microbial mat. Int J Syst Evol Microbiol 2017; 67:1355-1358.
  • Vannini et al. (2013) assigned the genus "Candidatus Protistibacter" corrig. Vannini et al. 2013 to this class. Publication: Vannini C, Ferrantini F, Verni F, Petroni G. A new obligate bacterial symbiont colonizing the ciliate Euplotes in brackish and freshwater: ‘Candidatus Protistobacter heckmanni’. Aquat Microb Ecol 2013; 70:233-243.
  • This taxon name is occasionally misprinted in some sources as: "Bctaproreobacteria"; "Betaprobacteria"; "Betaprotebacteria"; "Betaprotobacteria"; "Betproteobacteria"; "Ihltaproteobacteria".
  • Irregularly formed name (not formed from the stem of the name of the nomenclatural type). Publication: Parker CT, Tindall BJ, Garrity GM. International Code of Nomenclature of Prokaryotes. Int J Syst Evol Microbiol 2019; 69:S1-S111.
  • This name was mentioned in a Request for an Opinion. Publication: Oren A, Parte A, Garrity GM. Implementation of Rule 8 of the International Code of Nomenclature of Prokaryotes for the renaming of classes. Request for an Opinion. Int J Syst Evol Microbiol 2016; 66:4296-4298.

Subdivision:

Number of child taxa with a validly published and correct name: 4
Number of child taxa with a validly published name, including synonyms: 4
Total number of child taxa: 8

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    [Betaproteobacteria, not assigned to order]	artificial parent node of taxa incertae sedis
    Burkholderiales Garrity et al. 2006	validly published under the ICNP	correct name
    "Ferritrophicales" Weiss et al. 2007	not validly published
    "Ferrovales" Johnson et al. 2014	not validly published
    Neisseriales Tønjum 2006	validly published under the ICNP	correct name
    Nitrosomonadales Garrity et al. 2006	validly published under the ICNP	correct name
    "Procabacteriales" Garrity et al. 2003	not validly published
    Rhodocyclales Garrity et al. 2006	validly published under the ICNP	correct name

Parent taxon: "Proteobacteria" Cavalier-Smith 2002

Assigned by: Garrity GM, Bell JA, Lilburn T. Class III. Gammaproteobacteria class. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part B (The Gammaproteobacteria), Springer, New York, 2005, p. 1.

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Record number: 17