Name: Thermosphaera aggregans Huber et al. 1998

Category: Species

Proposed as: sp. nov.

Etymology: ag’gre.gans. L. fem. part. adj. aggregans, aggregating, referring to the ability of the cells to form grape-like aggregates

Gender: feminine

Type strain: DSM 11486; M11TL

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X99556 Analyse FASTA

Valid publication: Huber R, Dyba D, Huber H, Burggraf S, Rachel R. Sulfur-inhibited Thermosphaera aggregans sp. nov., a new genus of hyperthermophilic archaea isolated after its prediction from environmentally derived 16S rRNA sequences. Int J Syst Bacteriol 1998; 48:31-38.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 48, part 1 of the IJSB. Int J Syst Bacteriol 1998; 48:629.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Thermosphaera Huber et al. 1998. Publication: Huber R, Dyba D, Huber H, Burggraf S, Rachel R. Sulfur-inhibited Thermosphaera aggregans sp. nov., a new genus of hyperthermophilic archaea isolated after its prediction from environmentally derived 16S rRNA sequences. Int J Syst Bacteriol 1998; 48:31-38.
  • 😷 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 6 times in PubMed until 2024-03-27.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Spring S, Rachel R, Lapidus A, Davenport K, Tice H, Copeland A, Cheng JF, Lucas S, Chen F, Nolan M, et al. Complete genome sequence of Thermosphaera aggregans type strain (M11TL). Stand Genomic Sci 2010; 2:245-259.

Parent taxon: Thermosphaera Huber et al. 1998

Assigned by: Huber R, Dyba D, Huber H, Burggraf S, Rachel R. Sulfur-inhibited Thermosphaera aggregans sp. nov., a new genus of hyperthermophilic archaea isolated after its prediction from environmentally derived 16S rRNA sequences. Int J Syst Bacteriol 1998; 48:31-38.

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Record number: 782640