1995
DOI: 10.1099/00207713-45-4-820
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Characterization of Lawsonia intracellularis gen. nov., sp. nov., the Obligately Intracellular Bacterium of Porcine Proliferative Enteropathy

Abstract: A novel obligately intracellular bacterium, ileal symbiont intracellularis, which was obtained from the intestines of pigs with proliferative enteropathy disease, was grown in pure cocultures with tissue cultures of rat cells. An examination of the 16s ribosomal DNA gene sequence revealed that the isolates which we obtained are members of the delta subdivision of the Proteobucteriu and that the sequences of these organisms exhibit a level of similarity of 91% with the sequence of Desulfovibrio desulfuricuns AT… Show more

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Cited by 210 publications
(167 citation statements)
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“…The lesions observed, especially the thickening of the intestinal walls, characterized the pathological process as Intestinal Adenomatosis according to the classification system for swine presented by Rowland & Lawson (1975) and used by several authors (Morés et al 1985, McOrist et al 1995, Guedes et al 2002, with lesions concentrated in the ileum but extending, with less severity, to other portions (ileocecal valve and cecum). These findings are similar to those described in other reports on the disease in rabbits (Umemura et al 1982, Duhamel et al 1998, Watarai et al 2004.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…The lesions observed, especially the thickening of the intestinal walls, characterized the pathological process as Intestinal Adenomatosis according to the classification system for swine presented by Rowland & Lawson (1975) and used by several authors (Morés et al 1985, McOrist et al 1995, Guedes et al 2002, with lesions concentrated in the ileum but extending, with less severity, to other portions (ileocecal valve and cecum). These findings are similar to those described in other reports on the disease in rabbits (Umemura et al 1982, Duhamel et al 1998, Watarai et al 2004.…”
Section: Discussionmentioning
confidence: 99%
“…Lawsonia intracellularis (Li) (McOrist et al 1995). The lesions caused by the agent are concentrated in the intestine, especially in the ileum.…”
Section: Porcine Proliferative Enteropathy (Ppe) or Porcine Intestinamentioning
confidence: 99%
“…The direct link between wild animals and EPE has still to be proven by either characterization of the detected bacterial isolates or by experimental challenges using isolates from freeliving hosts. Traditionally, genomic and proteomic analyses of L. intracellularis of porcine origin have shown great homogeneity between strains, making a differentiation between field and vaccine isolates very difficult (McOrist et al, 1995). However, recent work using multiplelocus variable number tandem repeat analysis has shown promise in differentiating L. intracellularis isolates (Gebhart, pers.…”
mentioning
confidence: 99%
“…Não se observou associação entre as alterações macroscópicas e histológicas de EPS. (McOrist et al, 1995) que afeta também outras espécies animais (Cooper et al, 1997) e apresenta distribuição mundial (McOrist et al, 1994).…”
Section: Introductionunclassified