Name: Fidelibacter multiformis Katayama et al. 2024

Category: Species

Proposed as: sp. nov.

Etymology: mul.ti.for’mis. L. masc. adj. multiformis, many-shaped, multiform

Pronunciation (Latin), gender: … mul-ti-FOR-mis, masculine

Type strain: IA91; JCM 39387; KCTC 25736

Conduct genome-based taxonomy at

16S rRNA gene: LC818858 Analyse FASTA

Valid publication: Katayama T, Nobu MK, Kamagata Y, Tamaki H. Fidelibacter multiformis gen. nov., sp. nov., isolated from a deep subsurface aquifer and proposal of Fidelibacterota phyl. nov., formerly called Marine Group A, SAR406 or Candidatus Marinimicrobia. Int J Syst Evol Microbiol 2024; 74:6558. 🇯🇵

IJSEM list: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 74, part 10 of the IJSEM. Int J Syst Evol Microbiol 2025; 75:6588.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Notes:
  • 🥇 Nomenclatural type of the genus Fidelibacter Katayama et al. 2024. Publication: Katayama T, Nobu MK, Kamagata Y, Tamaki H. Fidelibacter multiformis gen. nov., sp. nov., isolated from a deep subsurface aquifer and proposal of Fidelibacterota phyl. nov., formerly called Marine Group A, SAR406 or Candidatus Marinimicrobia. Int J Syst Evol Microbiol 2024; 74:6558. 🇯🇵
  • 🎓 Name mentioned 1 time in PubMed until 2025-11-18.

Parent taxon: Fidelibacter Katayama et al. 2024

Assigned by: Katayama T, Nobu MK, Kamagata Y, Tamaki H. Fidelibacter multiformis gen. nov., sp. nov., isolated from a deep subsurface aquifer and proposal of Fidelibacterota phyl. nov., formerly called Marine Group A, SAR406 or Candidatus Marinimicrobia. Int J Syst Evol Microbiol 2024; 74:6558. 🇯🇵

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Record number: 54625