Name: Megasphaera hexanoica Jeon et al. 2017

Category: Species

Proposed as: sp. nov.

Etymology: he.xa.no’i.ca. N.L. neut. n. acidum hexanoicum, hexanoic acid; N.L. fem. adj. hexanoica, referring to the production of hexanoic acid

Gender: feminine

Type strain: JCM 31403; KCCM 43214; MH

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KX021300 Analyse FASTA

Valid publication: Jeon BS, Kim S, Sang BI. Megasphaera hexanoica sp. nov., a medium-chain carboxylic acid-producing bacterium isolated from a cow rumen. Int J Syst Evol Microbiol 2017; 67:2114-2120.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 67, part 7 of the IJSEM. Int J Syst Evol Microbiol 2017; 67:3689-3691.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • 😷 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 6 times in PubMed until 2024-03-27.

Parent taxon: Megasphaera Rogosa 1971 (Approved Lists 1980)

Assigned by: Jeon BS, Kim S, Sang BI. Megasphaera hexanoica sp. nov., a medium-chain carboxylic acid-producing bacterium isolated from a cow rumen. Int J Syst Evol Microbiol 2017; 67:2114-2120.

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Record number: 795517