Name: Balnearium lithotrophicum Takai et al. 2003

Category: Species

Proposed as: sp. nov.

Etymology: li.tho.tro’phi.cum. Gr. masc./fem. n. lithos, stone; Gr. masc. adj. trophikos, nursing, tending or feeding; N.L. neut. adj. lithotrophicum, referring to its lithotrophic metabolism

Pronunciation (Latin), gender: bal-ne-A-ri-um li-t^ho-TRO-p^hi-kum, neuter

Type strain: 17S; ATCC BAA-736; DSM 16304; JCM 11970

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB105049 Analyse FASTA

Valid publication: Takai K, Nakagawa S, Sako Y, Horikoshi K. Balnearium lithotrophicum gen. nov., sp. nov., a novel thermophilic, strictly anaerobic, hydrogen-oxidizing chemolithoautotroph isolated from a black smoker chimney in the Suiyo Seamount hydrothermal system. Int J Syst Evol Microbiol 2003; 53:1947-1954. 🇯🇵

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 53, part 6 of the IJSEM. Int J Syst Evol Microbiol 2004; 54:309-311.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Balnearium Takai et al. 2003. Publication: Takai K, Nakagawa S, Sako Y, Horikoshi K. Balnearium lithotrophicum gen. nov., sp. nov., a novel thermophilic, strictly anaerobic, hydrogen-oxidizing chemolithoautotroph isolated from a black smoker chimney in the Suiyo Seamount hydrothermal system. Int J Syst Evol Microbiol 2003; 53:1947-1954. 🇯🇵
  • 😷 The risk group for Germany has been imported on 2026-08-13. 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 2026-06-11.

Parent taxon: Balnearium Takai et al. 2003

Assigned by: Takai K, Nakagawa S, Sako Y, Horikoshi K. Balnearium lithotrophicum gen. nov., sp. nov., a novel thermophilic, strictly anaerobic, hydrogen-oxidizing chemolithoautotroph isolated from a black smoker chimney in the Suiyo Seamount hydrothermal system. Int J Syst Evol Microbiol 2003; 53:1947-1954. 🇯🇵

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Record number: 773981