Name: Promethearchaeum syntrophicum Imachi et al. 2024

Category: Species

Proposed as: sp. nov.

Etymology: syn.tro’phi.cum. Gr. prep. syn, in company with, together with; Gr. masc./fem. adj. trophos, feeder, rearer, one who feeds; N.L. neut. adj. syntrophicum, syntrophic

Pronunciation (Latin), gender: … syn-TRO-p^hi-kum, neuter

Type strain: JCM 39240; MK-D1

Conduct genome-based taxonomy at

16S rRNA gene: CP042905 Analyse FASTA

Valid publication: Imachi H, Nobu MK, Kato S, Takaki Y, Miyazaki M, Miyata M, Ogawara M, Saito Y, Sakai S, Tahara YO, et al. Promethearchaeum syntrophicum gen. nov., sp. nov., an anaerobic, obligately syntrophic archaeon, the first isolate of the lineage 'Asgard' archaea, and proposal of the new archaeal phylum Promethearchaeota phyl. nov. and kingdom Promethearchaeati regn. nov. Int J Syst Evol Microbiol 2024; 74:6435. 🇯🇵

IJSEM list: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 74, part 7 of the IJSEM. Int J Syst Evol Microbiol 2024; 74:6494.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    "Candidatus Prometheoarchaeum syntrophicum" Imachi et al. 2020	homotypic synonym, inaccurate spelling
    "Candidatus Promethearchaeum syntrophicum" corrig. Imachi et al. 2020	homotypic synonym, pro-validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Promethearchaeum Imachi et al. 2024. Publication: Imachi H, Nobu MK, Kato S, Takaki Y, Miyazaki M, Miyata M, Ogawara M, Saito Y, Sakai S, Tahara YO, et al. Promethearchaeum syntrophicum gen. nov., sp. nov., an anaerobic, obligately syntrophic archaeon, the first isolate of the lineage 'Asgard' archaea, and proposal of the new archaeal phylum Promethearchaeota phyl. nov. and kingdom Promethearchaeati regn. nov. Int J Syst Evol Microbiol 2024; 74:6435. 🇯🇵
  • 🎓 Name mentioned 3 times in PubMed until 2025-07-15.

Parent taxon: Promethearchaeum Imachi et al. 2024

Assigned by: Imachi H, Nobu MK, Kato S, Takaki Y, Miyazaki M, Miyata M, Ogawara M, Saito Y, Sakai S, Tahara YO, et al. Promethearchaeum syntrophicum gen. nov., sp. nov., an anaerobic, obligately syntrophic archaeon, the first isolate of the lineage 'Asgard' archaea, and proposal of the new archaeal phylum Promethearchaeota phyl. nov. and kingdom Promethearchaeati regn. nov. Int J Syst Evol Microbiol 2024; 74:6435. 🇯🇵

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Record number: 50652