Name: Aquabacter spiritensis Irgens et al. 1993

Category: Species

Proposed as: sp. nov.

Etymology: spi.ri.ten’sis. N.L. masc. adj. spiritensis, pertaining to Spirit Lake, Washington, USA, from which the strain was isolated

Pronunciation (Latin), gender: … spi-ri-TEN-sis, 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. — 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 1 time in PubMed until 2025-06-04.
  • 🧍 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