Name: Aeromonas ichthiosmia Schubert et al. 1991

Category: Species

Proposed as: sp. nov.

Etymology: ich.thi.os.mi.a. Gr. masc. n. ichthys, fish; Gr. fem. n. osmê, smell, odour; N.L. fem. n. ichthiosmia, intended to mean fishy smelling

Gender: feminine

Type strain: 115/II; ATCC 49904; CECT 4486; CIP 104613; DSM 6393; JCM 8354; LMG 12645

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X71120 Analyse FASTA

Effective publication: Schubert RHW, Hegazi M, Wahlig W. Aeromonas ichthiosmia species nova. Hyg. Med. 1990; 15:477-479.

IJSEM list: Anonymous. Validation list no. 38. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1991; 41:456-457.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Notes:
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Human classification RG: not given - Animal classification RG: 1 - 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 = 2, note = "PIIC". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "+". — 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 7 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 species itself.
  • 🧍 Consequently, the Subcommittee on the taxonomy of Vibrionaceae (1999) decided to clarify this problem [3]. Publication: Nair GB, Holmes B. International Committee on Systematic Bacteriology Subcommittee on the taxonomy of Vibrionaceae. Minutes of the meetings, 17 August 1999, Sydney, Australia. Int. J. Syst. Evol. Microbiol. 2002; 52:2331-2333.
  • 🧍 Later, another DNA relatedness data contradicted the previous results and according to Esteve et al. [4] the synonymy beetwen Aeromonas ichthiosmia and Aeromonas veronii should be reconsidered. Publication: Esteve C, Valera L, Gutierrez C, Ventosa A. Taxonomic study of sucrose-positive Aeromonas jandaei-like isolates from faeces, water and eels: emendation of A. jandaei Carnahan et al. 1992. Int J Syst Evol Microbiol 2003; 53:1411-1419.
  • 🧍 On the basis of 16S rRNA gene sequence analysis [1], DNA-DNA hybridization [2] and phenotypic data [2], Aeromonas ichthiosmia Schubert et al. 1991 seems a later heterotypic synonym of Aeromonas veronii Hickman-Brenner et al. 1988. Publication: Collins MD, Martinez-Murcia AJ, Cai J. Aeromonas enteropelogenes and Aeromonas ichthiosmia are identical to Aeromonas trota and Aeromonas veronii, respectively, as revealed by small-subunit rRNA sequence analysis. Int J Syst Bacteriol 1993; 43:855-856.
  • 🧍 See also: Publication: Huys G, Kampfer P, Swings J. New DNA-DNA hybridization and phenotypic data on the species Aeromonas ichthiosmia and Aeromonas allosaccharophila: A. ichthiosmia Schubert et al. 1990 is a later synonym of A. veronii Hickman-Brenner et al. 1987. Syst Appl Microbiol 2001; 24:177-182.

Parent taxon: Aeromonas Stanier 1943 (Approved Lists 1980)

Assigned by: Schubert RHW, Hegazi M, Wahlig W. Aeromonas ichthiosmia species nova. Hyg. Med. 1990; 15:477-479.

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Record number: 772906