Name: Sphaerochaeta pleomorpha Ritalahti et al. 2012

Category: Species

Proposed as: sp. nov.

Etymology: ple.o.mor’pha. N.L. fem. adj. pleomorpha, having many shapes and sizes, pleomorphic, reflecting the characteristic morphological progression during phases of growth; from Gr. masc. adj. pleôs, full; from Gr. fem. n. morphê, form, shape

Gender: feminine

Type strain: ATCC BAA-1885; DSM 22778; Grapes

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF357917 Analyse FASTA

Valid publication: Ritalahti KM, Justicia-Leon SD, Cusick KD, Ramos-Hernandez N, Rubin M, Dornbush J, Loffler FE. Sphaerochaeta globosa gen. nov., sp. nov. and Sphaerochaeta pleomorpha sp. nov., free-living, spherical spirochaetes. Int J Syst Evol Microbiol 2012; 62:210-216.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 62, part 1 of the IJSEM. Int J Syst Evol Microbiol 2012; 62:757-758.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Hördt et al. 2020 Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 3 times in PubMed until 2024-03-28.

Parent taxon: Sphaerochaeta Ritalahti et al. 2012

Assigned by: Ritalahti KM, Justicia-Leon SD, Cusick KD, Ramos-Hernandez N, Rubin M, Dornbush J, Loffler FE. Sphaerochaeta globosa gen. nov., sp. nov. and Sphaerochaeta pleomorpha sp. nov., free-living, spherical spirochaetes. Int J Syst Evol Microbiol 2012; 62:210-216.

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Record number: 789644