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| Mikcha,Jane M.G.; Ferreira,Antonio J. Piantino; Ferreira,Claudete S. Astolfi; Yano,Tomomasa. |
| Twenty-five strains of Salmonella enterica serovar Enteritidis isolated from different sources were examined for hemagglutinating activity. Bacteria cultured in different media induced hemagglutination of human erythrocytes, but no reaction was observed with erythrocytes from other animal species. The hemagglutinating expression activity was better for cultures on CFA agar at 37ºC than other conditions examined. The hemagglutination was inhibited by D-mannose, D-mannitol, melibiose, D-raffinose, L-rhamnose and sucrose. The absence of cell-surface appendages in electron microscope examinations suggested a nonfimbrial hemagglutinin. The data suggest that Salmonella Enteritidis produces nonfimbrial mannose-sensitive hemagglutinin, specific for human... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Salmonella Enteritidis; Hemagglutinating activity; Mannose-sensitive hemagglutinin; Nonfimbrial hemagglutinin. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000100008 |
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| Knöbl,Terezinha; Gomes,Tânia A. Tardelli; Vieira,Mônica A. Midolli; Bottino,José A.; Ferreira,Antonio J. Piantino. |
| The occurrence of fim, pap and sfa operons in Escherichia coli isolated from breeders with salpingitis and chicks with omphalitis was evaluated. Analysis of 100 E. coli isolates, by colony hybridization tests, showed that 78 (78%) were fim+, one (1%) was sfa+, seven (7%) were fim+ associated with pap+, eigth (8%) were fim+ and sfa+, one (1%) was fim+pap+sfa+ and five (5%) isolates did not hybridize with any probe. These results suggest that fim adhesion-encoding operon plays an important role in pathogenesis of E. coli infection in chickens with salpingitis and omphalitis. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Escherichia coli; Adhesion-encoding operon; Salpingitis; Omphalitis; Poultry. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000200008 |
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