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从仔猪和犊牛中分离出的具有pap相关序列的大肠杆菌F165阳性菌株的受体结合特异性和致病性。

Receptor binding specificity and pathogenicity of Escherichia coli F165-positive strains isolated from piglets and calves and possessing pap related sequences.

作者信息

Fairbrother J, Harel J, Forget C, Desautels C, Moore J

机构信息

GREMIP, Faculté de Médecine vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec.

出版信息

Can J Vet Res. 1993 Jan;57(1):53-5.

Abstract

Most of 82 F165-positive Escherichia coli isolated from calves and piglets with diarrhea or septicemia and possessing pap related sequences caused mannose-resistant, neuraminidase-resistant hemagglutination of human and bovine erythrocytes. Less than half of these isolates demonstrated binding specificity for the alpha-D-galactosyl-(1-4)-beta-D-galactopyranose or galactose-N-acetyl-alpha-(1-3) galactose-N-acetyl moieties recognized by P and F (or Prs) adhesins respectively. Binding specificity for the galactose-N-acetyl-alpha-(1-3) galactose-N-acetyl moiety was associated with isolates causing septicemia in newborn piglets.

摘要

从患有腹泻或败血症的犊牛和仔猪中分离出的82株F165阳性大肠杆菌中,大多数带有与pap相关的序列,可引起人及牛红细胞的甘露糖抗性、神经氨酸酶抗性血凝反应。这些分离株中不到一半分别对P和F(或Prs)黏附素识别的α-D-半乳糖基-(1-4)-β-D-吡喃半乳糖或半乳糖-N-乙酰-α-(1-3)半乳糖-N-乙酰部分表现出结合特异性。对半乳糖-N-乙酰-α-(1-3)半乳糖-N-乙酰部分的结合特异性与导致新生仔猪败血症的分离株有关。

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