Name: Aquabacter spiritensis Irgens et al. 1993

Category: Species

Proposed as: sp. nov.

Etymology: spir.it.en’sis. N.L. masc./fem. adj. spiritensis, pertaining to Spirit Lake, Washington, USA, from which the strain was isolated

Gender: masculine

Type strain: ATCC 43981; DSM 9035; LMG 8611; SPL-1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: FR733686 Analyse FASTA

Effective publication: Irgens RL, Kersters K, Segers P, Gillis M, Staley JT. Aquabacter spiritensis, gen. nov., sp. nov., an aerobic, gas-vacuolate aquatic bacterium. Arch. Microbiol. 1991; 155:137-142.

IJSEM list: Anonymous. Validation list no. 47. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1993; 43:864-865.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Aquabacter Irgens et al. 1993. Publication: Irgens RL, Kersters K, Segers P, Gillis M, Staley JT. Aquabacter spiritensis, gen. nov., sp. nov., an aerobic, gas-vacuolate aquatic bacterium. Arch. Microbiol. 1991; 155:137-142.
  • 😷 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.
  • 🎓 Name mentioned 1 time 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: 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.
  • 🧍 Yarza et al. (2013) expected for accession FR733686, originating from the alleged type-strain deposit DSM 9035, an affiliation with Hyphomicrobiaceae (Alphaproteobacteria) but observed an affiliation with Xanthobacteraceae (Alphaproteobacteria) and 97.6% similarity against Xanthobacter tegetidis. Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73.
  • 🧍 The 16S rRNA gene sequence of the type strain shows an unexpected affiliation with the family Xanthobacteraceae (97.6% similarity against Xanthobacter tagetidis). Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73.

Parent taxon: Aquabacter Irgens et al. 1993

Assigned by: Irgens RL, Kersters K, Segers P, Gillis M, Staley JT. Aquabacter spiritensis, gen. nov., sp. nov., an aerobic, gas-vacuolate aquatic bacterium. Arch. Microbiol. 1991; 155:137-142.

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Record number: 773311