Name: Methanothermococcus okinawensis Takai et al. 2002

Category: Species

Proposed as: sp. nov.

Etymology: o.ki.na.wen’sis. N.L. masc. adj. okinawensis, pertaining to Okinawa, a region of Japan

Pronunciation, gender: o-ki-na-WEN-sis, masculine

Type strain: DSM 14208; IH1; JCM 11175

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB057722 Analyse FASTA

Valid publication: Takai K, Inoue A, Horikoshi K. Methanothermococcus okinawensis sp. nov., a thermophilic, methane-producing archaeon isolated from a Western Pacific deep-sea hydrothermal vent system. Int J Syst Evol Microbiol 2002; 52:1089-1095.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 52, part 4 of the IJSEM. Int J Syst Evol Microbiol 2002; 52:1439-1440.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.00015 (N = 1).
  • 😷 The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — 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 11 times in PubMed until 2025-06-04.

Parent taxon: Methanothermococcus Whitman 2002

Assigned by: Takai K, Inoue A, Horikoshi K. Methanothermococcus okinawensis sp. nov., a thermophilic, methane-producing archaeon isolated from a Western Pacific deep-sea hydrothermal vent system. Int J Syst Evol Microbiol 2002; 52:1089-1095.

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Record number: 777949