Name: "Methylothermus" Tsubota et al. 2005

Category: Genus

Proposed as: gen. nov.

Etymology: Me.thy’lo.ther’mus. 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 to the methyl radical; Gr. masc. adj. thermos, hot; N.L. masc. n. Methylothermus, methyl-using thermotolerant organism

Gender: masculine (stem: Methylotherm-)

Type species: "Methylothermus thermalis" Tsubota et al. 2005

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

• Emendations:
  • Hirayama et al. 2011 Hirayama H, Suzuki Y, Abe M, Miyazaki M, Makita H, Inagaki F, Uematsu K, Takai K. Methylothermus subterraneus sp. nov., a moderately thermophilic methanotroph isolated from a terrestrial subsurface hot aquifer. Int J Syst Evol Microbiol 2011; 61:2646-2653.

• Notes:
  • Nomenclatural type of the family "Methylothermaceae" Hirayama et al. 2014. Publication: Hirayama H, Abe M, Miyazaki M, Nunoura T, Furushima Y, Yamamoto H, Takai K. Methylomarinovum caldicuralii gen. nov., sp. nov., a moderately thermophilic methanotroph isolated from a shallow submarine hydrothermal system, and proposal of the family Methylothermaceae fam. nov. Int J Syst Evol Microbiol 2014; 64:989-999.
  • Yilmaz et al. (2014) assigned this genus to the family Methylococcaceae Whittenbury and Krieg 1984. Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648.
  • The type species of this genus has been placed in the genus Methylothermus Hirayama et al. 2019. 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.
  • This taxon name is a homonym of Methylothermus Hirayama et al. 2019.
  • Methylothermus Tsubota et al. 2005 is not validly published because the type species is not validly published. — The etymology cited in the paper by Tsubota et al. 2005 is the following: N.L. n. methyl the methyl group; N.L. masc. subst. from Gr. adj. thermos hot; Methylothermus methyl-using thermotolerant organism. However, with such an etymology the correct name should be Methylithermus. — The gender of the genus name is not provided in the paper by Tsubota et al. 2005. However, according to rules of Latin and latinization, Methylothermus must be in the masculine gender. Publication: Parker CT, Tindall BJ, Garrity GM. International Code of Nomenclature of Prokaryotes. Int J Syst Evol Microbiol 2019; 69:S1-S111.
  • Regarded as not validly published: Methylothermus Tsubota et al. 2005 is not validly published because the type species is not validly published (cf. infra). Publication: Parker CT, Tindall BJ, Garrity GM. International Code of Nomenclature of Prokaryotes. Int J Syst Evol Microbiol 2019; 69:S1-S111.

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Record number: 723