Name: Alkalitalea saponilacus Zhao and Chen 2012

Category: Species

Proposed as: sp. nov.

Etymology: sa.po.ni.la.cus. M.L. masc. n. sapo (gen. saponis), soap; L. masc. n. lacus (gen. lacus), a lake; N.L. gen. masc. n. saponilacus, from Soap Lake, WA, USA, where the type strain was isolated

Gender: feminine

Type strain: ATCC BAA-2172; DSM 24412; SC/BZ-SP2

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: HQ191474 Analyse FASTA

Valid publication: Zhao B, Chen S. Alkalitalea saponilacus gen. nov., sp. nov., an obligately anaerobic, alkaliphilic, xylanolytic bacterium from a meromictic soda lake. Int J Syst Evol Microbiol 2012; 62:2618-2623.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 62, part 11 of the IJSEM. Int J Syst Evol Microbiol 2013; 63:399-400.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • García-López et al. 2019 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. Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • Nomenclatural type of the genus Alkalitalea Zhao and Chen 2012. Publication: Zhao B, Chen S. Alkalitalea saponilacus gen. nov., sp. nov., an obligately anaerobic, alkaliphilic, xylanolytic bacterium from a meromictic soda lake. Int J Syst Evol Microbiol 2012; 62:2618-2623.
  • The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.

Parent taxon: Alkalitalea Zhao and Chen 2012

Assigned by: Zhao B, Chen S. Alkalitalea saponilacus gen. nov., sp. nov., an obligately anaerobic, alkaliphilic, xylanolytic bacterium from a meromictic soda lake. Int J Syst Evol Microbiol 2012; 62:2618-2623.

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Record number: 790275