Name: "Methylothermus thermalis" Tsubota et al. 2005

Category: Species

Proposed as: sp. nov.

Etymology: ther’ma.lis N.L. masc./fem. adj. thermalis, pertaining to a hot spring

Gender: masculine

Type strains: IPOD FERM P-19714; MYHTT; VKM B-2345

See detailed strain information at

16S rRNA gene: AY829009 Analyse FASTA

Original publication: Tsubota J, Eshinimaev BTs, Khmelenina VN, Trotsenko YA. Methylothermus thermalis gen. nov., sp. nov., a novel moderately thermophilic obligate methanotroph from a hot spring in Japan. Int J Syst Evol Microbiol 2005; 55:1877-1884.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 55, part 5 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:7-9.

Nomenclatural status: not validly published

Risk group: 1

• Notes:
  • Nomenclatural type of the genus "Methylothermus" Tsubota et al. 2005. Publication: Tsubota J, Eshinimaev BTs, Khmelenina VN, Trotsenko YA. Methylothermus thermalis gen. nov., sp. nov., a novel moderately thermophilic obligate methanotroph from a hot spring in Japan. Int J Syst Evol Microbiol 2005; 55:1877-1884.
  • Regarded as not validly published. The type strain of Methylothermus thermalis is the strain MYHT=IPOD FERM P-19714=VKM B-2345. Strain IPOD FERM P-19714 is a patent deposit, and Methylothermus thermalis Tsubota et al. 2005 is not validly published (i.e. the strain is not freely available in two culture collections in two different countries).
  • IPOD is solely set up to deal with deposits on a confidential basis (i.e. patent deposits under the Budapest Treaty). Strain IPOD FERM P-19714 is probably a patent deposit, and Methylothermus thermalis Tsubota et al. 2005 is not validly published (i.e. the strain is not freely available without restriction, this does not comply with the requirements of the Bacteriological Code, which states that strains have to be deposited in two culture collections and be freely available from them.).

Parent taxon: Methylothermus Hirayama et al. 2019

Assigned by: Tsubota J, Eshinimaev BTs, Khmelenina VN, Trotsenko YA. Methylothermus thermalis gen. nov., sp. nov., a novel moderately thermophilic obligate methanotroph from a hot spring in Japan. Int J Syst Evol Microbiol 2005; 55:1877-1884.

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