Name: Exiguobacterium aestuarii Kim et al. 2005

Category: Species

Proposed as: sp. nov.

Etymology: aes.tu.a’ri.i. L. gen. neut. n. aestuarii, of a part of the sea-coast which, during the flood-tide, is overflowed, but at the ebb-tide is left covered with mud or slime

Gender: neuter

Type strain: DSM 16306; KCTC 19035; TF-16

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KJ847718 Analyse FASTA

Valid publication: Kim IG, Lee MH, Jung SY, Song JJ, Oh TK, Yoon JH. Exiguobacterium aestuarii sp. nov. and Exiguobacterium marinum sp. nov., isolated from a tidal flat of the Yellow Sea in Korea. Int J Syst Evol Microbiol 2005; 55:885-889.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 55, part 2 of the IJSEM. Int J Syst Evol Microbiol 2005; 55:1399-1402.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Notes:
  • 😢 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. The usage of the term "coherent taxon" (or equivalent) is cautioned against. 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.
  • 😷 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 14 times in PubMed until 2025-06-04.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.

Parent taxon: Exiguobacterium Collins et al. 1984

Assigned by: Kim IG, Lee MH, Jung SY, Song JJ, Oh TK, Yoon JH. Exiguobacterium aestuarii sp. nov. and Exiguobacterium marinum sp. nov., isolated from a tidal flat of the Yellow Sea in Korea. Int J Syst Evol Microbiol 2005; 55:885-889.

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Record number: 776138