| Autor: |
Morck DW; Department of Biology, University of Calgary, Alberta., Watts TC, Acres SD, Costerton JW |
| Jazyk: |
angličtina |
| Zdroj: |
Canadian journal of veterinary research = Revue canadienne de recherche veterinaire [Can J Vet Res] 1988 Jul; Vol. 52 (3), pp. 343-8. |
| Abstrakt: |
Several modern electron microscopy techniques were used to examine Pasteurella haemolytica (biotype A, serotype 1) (strain B122) recovered from experimentally infected cattle and in situ within the lung tissue of experimentally infected cattle. Glycocalyx four to five times thicker than that seen on P. haemolytica grown in vitro was evident on bacterial cells recovered from live infected calves by pulmonary lavage. Fimbriae were also present on cells recovered by lavage. A thick glycocalyx was also seen on P. haemolytica-A1 within the lungs of experimentally infected cattle at necropsy. In summary, cells of P. haemolytica-A1 in experimentally infected cattle have fimbriae and glycocalyx on their cell surfaces and these structures appear to be important in bacterial colonization of the bovine respiratory tract and pathogenesis of shipping fever (Pasteurella) pneumonia. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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