Genus Methylococcus

Name: Methylococcus Foster and Davis 1966 (Approved Lists 1980)

Category, proposed as: genus, gen. nov.

Etymology: Me.thy.lo.coc’cus. N.L. neut. n. methylum, the methyl group; from French masc. n. méthyle; from French masc. n. méthylène; from Gr. neut. n. methy, wine; from Gr. fem. n. hylê, wood; N.L. neut. n. methyl, pertaining to the methyl radical; N.L. masc. n. coccus, coccus; from Gr. masc. n. kokkos, grain, seed; N.L. masc. n. Methylococcus, methyl coccus

Gender, pronunciation (Latin): masculine (stem: Methylococc-), me-t^hy-lo-KOK-kus

Type species: Methylococcus capsulatus Foster and Davis 1966 (Approved Lists 1980)

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Foster JW, Davis RH. A methane-dependent coccus, with notes on classification and nomenclature of obligate, methane-utilizing bacteria. J Bacteriol 1966; 91:1924-1931.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Emendations:
  • Bowman et al. 1993 Bowman JP, Sly LI, Nichols PD, Hayward AC. Revised taxonomy of the methanotrophs: description of Methylobacter gen. nov., emendation of Methylococcus, validation of Methylosinus and Methylocystis species, and a proposal that the family Methylococcaceae includes only the group I methanotrophs. Int. J. Syst. Bacteriol. 1993; 43:735-753. 🇦🇺 Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 43, part 4 of the IJSB. Int J Syst Bacteriol 1994; 44:184.
    Notes:
    • ⊖ Emendation accompanied by the removal of 2 species from the genus.

• Notes:
  • 🥇 Nomenclatural type of the family Methylococcaceae Whittenbury and Krieg 1984. Publication: Whittenbury R, Krieg NR. Family Methylococcaceae. In: Krieg NR, Holt JG (eds), Bergey's manual of systematic bacteriology, vol. 1., The Williams & Wilkins Co., Baltimore, 1984, p. 256-261.
  • 🥇 Nomenclatural type of the order Methylococcales Bowman 2005. Publication: Bowman JP. Order VII. Methylococcales ord. 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. 248-252. 🇺🇸
  • 🧕 Brenner et al. (2005) assigned this genus to the order Methylococcales Bowman 2005. Publication: Bowman JP. Order VII. Methylococcales ord. 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. 248-252. 🇺🇸
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Iethylococcus"; "Mcthylococcus"; "Mefhylococcus"; "Methyfucoccw"; "Methylcoccus"; "Methyloccus"; "Methylococccus"; "Methylococcua"; "Methylococeus"; "Methylocoecus"; "Methyloooccus"; "Methytococcus"; "Metliylococcus"; "Mothylococcus".
  • 🎰 The BRCs most frequently used for deposits in this group are: ATCC: 3; NCIMB: 3; KCTC: 2; JCM: 2; UNIQEM: 1.
  • 🧍 Pittman et al. (1991) suggested the abbreviation "MLCO" for this genus name but this does not appear to be of practical relevance any longer. Publication: Pittman KF, Walczak CA, Lock CM. Codes and abbreviations for approved of effectively published names of genera of bacteria published from January 1980 to December 1990. Int J Syst Bacteriol 1991; 41:571-579.

Subdivision:

Number of child taxa with a validly published and correct name: 5
Number of child taxa with a validly published name, including synonyms: 10
Total number of child taxa: 10

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Methylococcus bovis Romanovskaya et al. 1981	validly published under the ICNP	synonym
    Methylococcus capsulatus Foster and Davis 1966 (Approved Lists 1980)	validly published under the ICNP	correct name
    Methylococcus chroococcus Romanovskaya et al. 1981	validly published under the ICNP	synonym
    Methylococcus geothermalis Awala et al. 2020	validly published under the ICNP	correct name
    Methylococcus luteus Romanovskaya et al. 1981	validly published under the ICNP	synonym
    Methylococcus mesophilus Awala et al. 2023	validly published under the ICNP	correct name
    Methylococcus mobilis Hazeu et al. 1980	validly published under the ICNP	correct name
    Methylococcus thermophilus Malashenko et al. 1975 (Approved Lists 1980)	validly published under the ICNP	correct name
    Methylococcus vinelandii Romanovskaya et al. 1981	validly published under the ICNP	synonym
    Methylococcus whittenburyi Romanovskaya et al. 1981	validly published under the ICNP	synonym

Parent taxon: Methylococcaceae Whittenbury and Krieg 1984

Assigned by: Whittenbury R, Krieg NR. Family Methylococcaceae. In: Krieg NR, Holt JG (eds), Bergey's manual of systematic bacteriology, vol. 1., The Williams & Wilkins Co., Baltimore, 1984, p. 256-261.

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Record number: 517281