Name: Lawsonia intracellularis McOrist et al. 1995

Category: Species

Proposed as: sp. nov.

Etymology: in.tra.cel.l.u.la’ris. N.L. fem. n. Lawsonia, in honor of G. H. K. Lawson, the discoverer of the bacterium; L. adv. intra, within; L. fem. n. cellula, cell; N.L. masc./fem. adj. intracellularis, within small cells, referring to the presence of the organism within enterocytes

Gender: feminine

Type strain: 1482/89; NCTC 12656

16S rRNA gene: L15739 Analyse FASTA

Valid publication: McOrist S, Gebhart CJ, Boid R, Barns SM. Characterization of Lawsonia intracellularis gen. nov., sp. nov., the obligately intracellular bacterium of porcine proliferative enteropathy. Int J Syst Bacteriol 1995; 45:820-825.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 45, part 4 of the IJSB. Int J Syst Bacteriol 1996; 46:364-365.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    "Candidatus intracellularis" Gebhart et al. 1993	homotypic synonym, inaccurate spelling
    "Candidatus Lawsonia intracellularis" corrig. Gebhart et al. 1993	homotypic synonym, not validly published

• Notes:
  • 🥇 Nomenclatural type of the genus Lawsonia McOrist et al. 1995. Publication: McOrist S, Gebhart CJ, Boid R, Barns SM. Characterization of Lawsonia intracellularis gen. nov., sp. nov., the obligately intracellular bacterium of porcine proliferative enteropathy. Int J Syst Bacteriol 1995; 45:820-825.
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 1, note = "animal pathogen - biological class of risk animal: 2". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 2 - 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, note = "PV". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "t".
  • 🎓 Name mentioned 421 times in PubMed until 2024-03-28.
  • 🧍 Lawsonia intracellularis was previously known as "Ileal symbiont intracellularis" Gebhart et al. 1993, or as "Candidatus intracellularis" Murray and Stackebrandt 1995. Publication: Murray RG, Stackebrandt E. Taxonomic note: implementation of the provisional status Candidatus for incompletely described procaryotes. Int J Syst Bacteriol 1995; 45:186-187.

Parent taxon: Lawsonia McOrist et al. 1995

Assigned by: McOrist S, Gebhart CJ, Boid R, Barns SM. Characterization of Lawsonia intracellularis gen. nov., sp. nov., the obligately intracellular bacterium of porcine proliferative enteropathy. Int J Syst Bacteriol 1995; 45:820-825.

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Record number: 784078