Name: Methanobacterium thermaggregans corrig. Blotevogel and Fischer 1988

Category: Species

Proposed as: sp. nov.

Etymology: therm.ag.gre.gans. L. pres. part. aggregans, assembling, aggregating; N.L. neut. part. adj. thermaggregans

Gender: neuter

Type strain: ATCC 43168; DSM 3266; OCM 141; VKM B-1959

See detailed strain information at

16S rRNA gene: AB679267 Analyse FASTA

Effective publication: Blotevogel K, Fischer U. Isolation and characterization of a new thermophilic and autotrophic methane producing bacterium: Methanobacterium thermoaggregans spec. nov. Arch. Microbiol. 1985; 142:218-222. 🇩🇪

IJSEM list: Anonymous. Validation list no. 25. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1988; 38:220-222.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Methanobacterium thermoaggregans Blotevogel and Fischer 1988	other spelling of name, inaccurate spelling

• Notes:
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 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.
  • 🎓 Name mentioned 2 times in PubMed until 2025-06-04.
  • 🧍 Original spelling of the specific epithet, thermoaggregans (sic), corrected by Boone and Mah 1989. Publication: Boone DR, Mah RA. Genus I. Methanobacterium Kluyver and van Niel 1936, 399AL, emend. Balch and Wolfe in Balch, Fox, Magrum, Woese and Wolfe 1979, 284. In: Staley JT, Bryant MP, Pfennig N, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 3, The Williams & Wilkins Co., Baltimore, 1989, p. 2175-2177. 🇺🇸
  • 🧍 Yarza et al. (2013) expected for accession HE654005, originating from the alleged type-strain deposit DSM 3266, an affiliation with Methanobacterium (Methanobacteriaceae) but observed an affiliation with Methanothermobacter (Methanobacteriaceae) and 99.92% similarity against Methanothermobacter thermautotrophicus. Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73. 🇩🇪
  • 🧍 The original spelling of the specific epithet, thermoaggregans (sic), has been corrected by Boone and Mah 1989. — 🧍 The type strain of Methanobacterium thermaggregans corrig. Blotevogel and Fischer 1988 is not a clone and the data from the reported test are difficult to interpret. Publication: Boone DR, Mah RA. Genus I. Methanobacterium Kluyver and van Niel 1936, 399AL, emend. Balch and Wolfe in Balch, Fox, Magrum, Woese and Wolfe 1979, 284. In: Staley JT, Bryant MP, Pfennig N, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 3, The Williams & Wilkins Co., Baltimore, 1989, p. 2175-2177. 🇺🇸

Parent taxon: Methanobacterium Kluyver and van Niel 1936 (Approved Lists 1980)

Assigned by: Blotevogel K, Fischer U. Isolation and characterization of a new thermophilic and autotrophic methane producing bacterium: Methanobacterium thermoaggregans spec. nov. Arch. Microbiol. 1985; 142:218-222. 🇩🇪

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Record number: 777803