Name: Zavarzinella formosa Kulichevskaya et al. 2009

Category: Species

Proposed as: sp. nov.

Etymology: for.mo’sa. L. fem. adj. formosa, beautiful, beautifully formed, finely formed

Pronunciation (Latin), gender: … for-MO-sa, feminine

Type strain: A10; DSM 19928; VKM B-2478

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AM162406 Analyse FASTA

Valid publication: Kulichevskaya IS, Baulina OI, Bodelier PL, Rijpstra WI, Damste JS, Dedysh SN. Zavarzinella formosa gen. nov., sp. nov., a novel stalked, Gemmata-like planctomycete from a Siberian peat bog. Int J Syst Evol Microbiol 2009; 59:357-364. 🇷🇺

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 59, part 2 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:926-927.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Scheuner et al. 2014 Scheuner C, Tindall BJ, Lu M, Nolan M, Lapidus A, Cheng JF, Goodwin L, Pitluck S, Huntemann M, Liolios K, et al. Complete genome sequence of Planctomyces brasiliensis type strain (DSM 5305^T), phylogenomic analysis and reclassification of Planctomycetes including the descriptions of Gimesia gen. nov., Planctopirus gen. nov. and Rubinisphaera gen. nov. and emended descriptions of the order Planctomycetales and the family Planctomycetaceae. Stand Genomic Sci 2014; 9:10. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 22. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2015; 65:2028-2029.

• Notes:
  • 🥇 Nomenclatural type of the genus Zavarzinella Kulichevskaya et al. 2009. Publication: Kulichevskaya IS, Baulina OI, Bodelier PL, Rijpstra WI, Damste JS, Dedysh SN. Zavarzinella formosa gen. nov., sp. nov., a novel stalked, Gemmata-like planctomycete from a Siberian peat bog. Int J Syst Evol Microbiol 2009; 59:357-364. 🇷🇺
  • 😷 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 7 times in PubMed until 2025-06-04.
  • 🧍 The phylogenetic position of this species was determined in a genome-scale analysis by García-López et al. (2019). Publication: Garcia-Lopez M, Meier-Kolthoff JP, Tindall BJ, Gronow S, Woyke T, Kyrpides NC, Hahnke RL, Goker M. Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes. Front Microbiol 2019; 10:2083. 🇩🇪

Parent taxon: Zavarzinella Kulichevskaya et al. 2009

Assigned by: Kulichevskaya IS, Baulina OI, Bodelier PL, Rijpstra WI, Damste JS, Dedysh SN. Zavarzinella formosa gen. nov., sp. nov., a novel stalked, Gemmata-like planctomycete from a Siberian peat bog. Int J Syst Evol Microbiol 2009; 59:357-364. 🇷🇺

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Record number: 787070