Name: Methanosphaera Miller and Wolin 1985

Category: Genus

Proposed as: gen. nov.

Etymology: Me.tha.no.sphae’ra. N.L. neut. n. methanum, methane; from French masc. n. méthyle; from Chem. neut. suff. -ane; N.L. pref. methano-, pertaining to methane (in compound words); Gr. fem. n. sphaîra, a sphere; N.L. fem. n. Methanosphaera, methane-producing sphere

Gender, pronunciation: feminine (stem: Methanosphaer-), me-t^ha-no-SP^HA͡E-ra

Type species: Methanosphaera stadtmanae corrig. Miller and Wolin 1985

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Miller TL, Wolin MJ. Methanosphaera stadtmaniae gen. nov., sp. nov.: a species that forms methane by reducing methanol with hydrogen. Arch Microbiol 1985; 141:116-122.

IJSEM list: Anonymous. Validation list no. 19. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1985; 35:535.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Methanospaera"; "Methanosphera"; "Methtmosphaera".
  • 🖹 Minimal standards for the description of new taxa in this group were published in 1988. Publication: Boone DR, Whitman WB. Proposal of Minimal Standards for Describing New Taxa of Methanogenic Bacteria. International Journal of Systematic Bacteriology 1988; 38:212-219.
  • 🖹 Minimal standards for the description of new taxa in this group were published in 1988. Publication: D.r. Boone WBW. Proposal of Minimal Standards for Describing New Taxa of Methanogenic Bacteria. Int. J. Syst. Evol. Microbiol. 1988; 38:212-219.
  • 🖹 Minimal standards for the description of new taxa in this group were published in 2023. Publication: Prakash O, Dodsworth JA, Dong X, Ferry JG, L'Haridon S, Imachi H, Kamagata Y, Rhee SK, Sagar I, Shcherbakova V, et al. Proposed minimal standards for description of methanogenic archaea. Int J Syst Evol Microbiol 2023; 73:5500.
  • 🎰 The BRCs most frequently used for deposits in this group are: OCM: 3; DSM: 3; ATCC: 2; JCM: 2; CSUR: 1.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Human classification RG: not given - Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — 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 "MESF" 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: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 4

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Methanosphaera cuniculi Biavati et al. 1990	validly published under the ICNP	correct name
    "Candidatus Methanosphaera massiliense" Pilliol et al. 2024	not validly published	preferred name
    Methanosphaera stadtmanae corrig. Miller and Wolin 1985	validly published under the ICNP	correct name
    Methanosphaera stadtmaniae Miller and Wolin 1985	inaccurate spelling	misspelling

Parent taxon: Methanobacteriaceae Barker 1956 (Approved Lists 1980)

Assigned by: Miller TL, Wolin MJ. Methanosphaera stadtmaniae gen. nov., sp. nov.: a species that forms methane by reducing methanol with hydrogen. Arch Microbiol 1985; 141:116-122.

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Record number: 517081