Name: Escherichia adecarboxylata Leclerc 1962 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: a.de.car.bo.xy.la’ta. Gr. pref. a-, not (inseparable prefix); N.L. n. decarboxylum, removal of a molecule of carbon dioxide from an organic compound; from French n. decarboxyl; from N.L. neut. n. carboxyl; N.L. fem. adj. adecarboxylata, without decarboxylase activity, because it has negative reactions in lysine decarboxylase, ornithine decarboxylase and arginine dihydrolase, i.e., “triple decarboxylase negative”

Pronunciation (Latin), gender: … a-de-kar-bo-ksy-LA-ta, feminine

Type strain: ATCC 23216; CIP 82.92; HAMBI 1696; JCM 1667; LMG 2803; NBRC 102595; NCTC 13032

Conduct genome-based taxonomy at

16S rRNA gene: JN175338 Analyse FASTA

Effective publication: Leclerc H. [Biochemical study of pigmented Enterobacteriaceae]. Ann Inst Pasteur (Paris) 1962; 102:726-741.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Leclercia adecarboxylata (Leclerc 1962) Tamura et al. 1987

Risk group: 2

• Synonyms:

  • Name	Kind
    Leclercia adecarboxylata (Leclerc 1962) Tamura et al. 1987	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Escherichia adecarboxylata is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Escherichia.
  • 😷 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 = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2. — 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 9 times in PubMed until 2025-06-04.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.
  • 🧍 Escherichia adecarboxylata Leclerc 1962 was previously known as CDC Enteric Group 41. Publication: Palleroni NJ. Genus I. Pseudomonas Migula 1894, 237 AL (Nom. Cons., Opin. 5 of the Jud. Comm. 1952, 121). In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 2 (The Proteobacteria), part B (The Gammaproteobacteria), Springer, New York, 2005, p. 323-379. 🇺🇸

Parent taxon: Escherichia Castellani and Chalmers 1919 (Approved Lists 1980)

Assigned by: Leclerc H. [Biochemical study of pigmented Enterobacteriaceae]. Ann Inst Pasteur (Paris) 1962; 102:726-741.

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Record number: 776052