Name: Sphaerotilus microaerophilus Narihara et al. 2024

Category: Species

Proposed as: sp. nov.

Etymology: mi.cro.ae.ro’phi.lus. Gr. masc. adj. mikros, small (may keep -o); Gr. masc. n. aêr, air; N.L. masc. adj. suff. -philus, friend; from Gr. masc. adj. philos, on; N.L. masc. adj. microaerophilus, loving conditions of low air, referring to the low oxygen preference of the type strain, FB-5

Pronunciation, gender: mi-kro-a͡e-RO-p^hi-lus, masculine

Type strain: FB-5; JCM 35424; KACC 23146

Conduct genome-based taxonomy at

16S rRNA gene: LC775240 Analyse FASTA

Effective publication: Narihara S, Chida S, Matsunaga N, Akimoto R, Akimoto M, Hagio A, Mori T, Nittami T, Sato M, Mun S, et al. Taxonomic characterization of Sphaerotilus microaerophilus sp. nov., a sheath-forming microaerophilic bacterium of activated sludge origin. Arch Microbiol 2024; 206:252. 🇯🇵

IJSEM list: Oren A, Göker M. Validation list no. 219. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2024; 74:6452.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Notes:
  • 🎓 Name mentioned 1 time in PubMed until 2025-10-14.

Parent taxon: Sphaerotilus Kützing 1833 (Approved Lists 1980)

Assigned by: Narihara S, Chida S, Matsunaga N, Akimoto R, Akimoto M, Hagio A, Mori T, Nittami T, Sato M, Mun S, et al. Taxonomic characterization of Sphaerotilus microaerophilus sp. nov., a sheath-forming microaerophilic bacterium of activated sludge origin. Arch Microbiol 2024; 206:252. 🇯🇵

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Record number: 48340