Name: Gemmata obscuriglobus Franzmann and Skerman 1985

Category: Species

Proposed as: sp. nov.

Etymology: obs.cu.ri’glo.bus. L. masc. adj. obscurus, dark; L. masc. n. globus, a ball, sphere, globe; N.L. masc. n. obscuriglobus, a dark sphere (nominative in apposition)

Pronunciation, gender: obs-ku-RI-glo-bus, feminine

Type strain: ACM 2246; DSM 5831; UQM 2246

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X56305 Analyse FASTA

Effective publication: Franzmann PD, Skerman VB. Gemmata obscuriglobus, a new genus and species of the budding bacteria. Antonie Van Leeuwenhoek 1984; 50:261-268.

IJSEM list: Anonymous. Validation list no. 18. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1985; 35:375-376.

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 Gemmata Franzmann and Skerman 1985. Publication: Franzmann PD, Skerman VB. Gemmata obscuriglobus, a new genus and species of the budding bacteria. Antonie Van Leeuwenhoek 1984; 50:261-268.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — 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 61 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: Gemmata Franzmann and Skerman 1985

Assigned by: Franzmann PD, Skerman VB. Gemmata obscuriglobus, a new genus and species of the budding bacteria. Antonie Van Leeuwenhoek 1984; 50:261-268.

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Record number: 776435