Name: Methylomonas (ex Leadbetter 1974) Whittenbury and Krieg 1984

Category: Genus

Proposed as: gen. nov., nom. rev.

Etymology: Me.thy.lo’mo.nas. 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; L. fem. n. monas, monad, unit; N.L. fem. n. Methylomonas, methyl monad or methyl unit

Gender, pronunciation: feminine (stem: Methylomonad-), me-t^hy-LO-mo-nas

Type species: Methylomonas methanica (ex Söhngen 1906) Whittenbury and Krieg 1984

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective 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.

IJSEM list: Anonymous. Validation list no. 15. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1984; 34:355-357.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• 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 1 species from the genus.

• Notes:
  • 🥇 Nomenclatural type of the family "Methylomonadaceae" Leadbetter 1974. Publication: Leadbetter ER. Family Methylomonadaceae. In: Buchanan RE, Gibbons NE (eds), Bergey’s Manual of Determinative Bacteriology, 8th ed., The Williams & Wilkins Co, Baltimore, 1974, p. 267-269.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Ilfothylomonas"; "Lriethylomonas"; "Mcthylomonas"; "Mediylomonas"; "Meihylomonas"; "Methvlomonas"; "Methylomolias"; "Methylomomw"; "Methylomona"; "Methylomonads"; "Methylomonus"; "Methyomonas"; "Metylomonas"; "Mothylomonas".
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Tikhonova et al. (2023). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • 🎰 The BRCs most frequently used for deposits in this group are: ATCC: 7; NCIMB: 5; JCM: 5; DSM: 5; LMG: 4; VKM: 4; UQM: 3; KCTC: 3; UCM: 2; UNIQEM: 1.
  • 😷 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.
  • 🧍 Pittman et al. (1991) suggested the abbreviation "MLMN" 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: 16
Number of child taxa with a validly published name, including synonyms: 17
Total number of child taxa: 29

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Methylomonas agile" Whittenbury et al. 1970	not validly published	preferred name
    Methylomonas albis Bussmann et al. 2022	validly published under the ICNP	correct name
    "Methylomonas albus" Whittenbury et al. 1970	not validly published	preferred name
    Methylomonas aurantiaca Bowman et al. 1990	validly published under the ICNP	correct name
    Methylomonas aurea Abin et al. 2024	validly published under the ICNP	correct name
    Methylomonas defluvii Ouyang et al. 2024	validly published under the ICNP	correct name
    "Methylomonas denitrificans" Kits et al. 2015	not validly published	preferred name
    "Methylomonas flagellata" Morinaga et al. 1976	not validly published	preferred name
    Methylomonas fluvii Bussmann et al. 2022	validly published under the ICNP	correct name
    Methylomonas fodinarum Bowman et al. 1990	validly published under the ICNP	correct name
    "Methylomonas gracilis" Romanovskaya et al. 1978	not validly published	preferred name
    Methylomonas koyamae Ogiso et al. 2012	validly published under the ICNP	correct name
    Methylomonas lenta Hoefman et al. 2014	validly published under the ICNP	correct name
    Methylomonas methanica (ex Söhngen 1906) Whittenbury and Krieg 1984	validly published under the ICNP	correct name
    "Methylomonas methanolica" Dostalek and Molin 1975	not validly published	preferred name
    "Methylomonas methanooxidans" Leadbetter 1974	not validly published	preferred name
    "Methylomonas methylovora" Kouno et al. 1973	not validly published	preferred name
    "Methylomonas montana" Suleimanov et al. 2023	not validly published	preferred name
    Methylomonas paludis Danilova et al. 2013	validly published under the ICNP	correct name
    Methylomonas pelagica Sieburth et al. 1988	validly published under the ICNP	synonym
    Methylomonas rapida Tikhonova et al. 2023	validly published under the ICNP	correct name
    "Methylomonas rhizoryzae" Zhu et al. 2020	not validly published	preferred name
    Methylomonas rivi Abin et al. 2024	validly published under the ICNP	correct name
    Methylomonas rosea Abin et al. 2024	validly published under the ICNP	correct name
    "Methylomonas rubra" Romanovskaya et al. 1978	not validly published	synonym
    "Methylomonas rubra" Romanovskaya et al. 2006	not validly published	preferred name
    Methylomonas scandinavica Kalyuzhnaya et al. 2000	validly published under the ICNP	correct name
    Methylomonas stagni Gwak et al. 2025	validly published under the ICNP	correct name
    Methylomonas subterranea Abin et al. 2024	validly published under the ICNP	correct name

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: 516067