Name: Thermosulfidibacter takaii Nunoura et al. 2008

Category: Species

Proposed as: sp. nov.

Etymology: ta’kai.i. N.L. gen. masc. n. takaii, of Takai, named after Dr Ken Takai, a microbiologist who has devoted himself to the study of terrestrial and deep-sea hydrothermal microbial ecosystems and chemolithoautotrophs present in those environments

Pronunciation, gender: TA-kai-i, masculine

Type strain: ABI70S6; DSM 17441; JCM 13301

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB282756 Analyse FASTA

Valid publication: Nunoura T, Oida H, Miyazaki M, Suzuki Y. Thermosulfidibacter takaii gen. nov., sp. nov., a thermophilic, hydrogen-oxidizing, sulfur-reducing chemolithoautotroph isolated from a deep-sea hydrothermal field in the Southern Okinawa Trough. Int J Syst Evol Microbiol 2008; 58:659-665.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 58, part 3 of the IJSEM. Int J Syst Evol Microbiol 2008; 58:1273-1274.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Thermosulfidibacter Nunoura et al. 2008. Publication: Nunoura T, Oida H, Miyazaki M, Suzuki Y. Thermosulfidibacter takaii gen. nov., sp. nov., a thermophilic, hydrogen-oxidizing, sulfur-reducing chemolithoautotroph isolated from a deep-sea hydrothermal field in the Southern Okinawa Trough. Int J Syst Evol Microbiol 2008; 58:659-665.
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • 😷 The risk group for Germany has been imported on 2023-10-29. 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 5 times in PubMed until 2025-06-04.

Parent taxon: Thermosulfidibacter Nunoura et al. 2008

Assigned by: Nunoura T, Oida H, Miyazaki M, Suzuki Y. Thermosulfidibacter takaii gen. nov., sp. nov., a thermophilic, hydrogen-oxidizing, sulfur-reducing chemolithoautotroph isolated from a deep-sea hydrothermal field in the Southern Okinawa Trough. Int J Syst Evol Microbiol 2008; 58:659-665.

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Record number: 787234