Name: Quadrisphaera granulorum Maszenan et al. 2005

Category: Species

Proposed as: sp. nov.

Etymology: gra.nu.lo’rum. L. gen. neut. dim. pl. n. granulorum, from, or of, granules

Gender: feminine

Type strain: AG019; ATCC BAA-1104; DSM 44889; JCM 16010

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AY831385 Analyse FASTA

Valid publication: Maszenan AM, Tay JH, Schumann P, Jiang HL, Tay ST. Quadrisphaera granulorum gen. nov., sp. nov., a Gram-positive polyphosphate-accumulating coccus in tetrads or aggregates isolated from aerobic granules. Int J Syst Evol Microbiol 2005; 55:1771-1777.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 55, part 5 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:7-9.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Nouioui et al. 2018 Nouioui I, Carro L, Garcia-Lopez M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Goker M. Genome-Based Taxonomic Classification of the Phylum Actinobacteria. Front Microbiol 2018; 9:2007. Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.

• Notes:
  • 🥇 Nomenclatural type of the genus Quadrisphaera Maszenan et al. 2005. Publication: Maszenan AM, Tay JH, Schumann P, Jiang HL, Tay ST. Quadrisphaera granulorum gen. nov., sp. nov., a Gram-positive polyphosphate-accumulating coccus in tetrads or aggregates isolated from aerobic granules. Int J Syst Evol Microbiol 2005; 55:1771-1777.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 4 times in PubMed until 2024-03-28.

Parent taxon: Quadrisphaera Maszenan et al. 2005

Assigned by: Maszenan AM, Tay JH, Schumann P, Jiang HL, Tay ST. Quadrisphaera granulorum gen. nov., sp. nov., a Gram-positive polyphosphate-accumulating coccus in tetrads or aggregates isolated from aerobic granules. Int J Syst Evol Microbiol 2005; 55:1771-1777.

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Record number: 780306