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从仔猪肠道分离的大肠杆菌菌株中大肠杆菌素产生与致病因子的关系

Colicin production in relation to pathogenicity factors in strains of Escherichia coli isolated from the intestinal tract of piglets.

作者信息

Djønne B K

出版信息

Acta Vet Scand. 1985;26(2):145-52. doi: 10.1186/BF03546546.

Abstract

Three hundred and fifteen E. coli strains isolated from piglets dead due to neonatal E. coli diarrhea or traumatic lesions, were examined for presence of enterotoxin production, K-antigens 88 and 99, antibiotic resistance and colicin-production. Almost 100 % of the E. coli strains positive on enterotoxin production produced colicin, while approx. 17 % of the non-enterotoxigenic strains did so. Ninety-nine % of the E. coli strains harbouring K-antigens were found to produce colicin, while approx. 23 % of the strains without detectable K-antigens did so. In strains where neither K-antigens nor enterotoxin production was found, resistance against tetracycline, neomycin and ampicillin, and sensitivity against streptomycin, was more commonly found among colicin-producing strains, than among strains without colicin production.

摘要

从因新生仔猪大肠杆菌腹泻或外伤致死的仔猪中分离出315株大肠杆菌,检测其肠毒素产生情况、K抗原88和99、抗生素耐药性及大肠杆菌素产生情况。几乎100%产生肠毒素的大肠杆菌菌株产生了大肠杆菌素,而约17%的非产肠毒素菌株也产生了大肠杆菌素。99%携带K抗原的大肠杆菌菌株被发现产生大肠杆菌素,而约23%未检测到K抗原的菌株也产生了大肠杆菌素。在既未发现K抗原也未发现肠毒素产生的菌株中,产生大肠杆菌素的菌株比未产生大肠杆菌素的菌株更常见对四环素、新霉素和氨苄青霉素耐药,而对链霉素敏感。

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本文引用的文献

4
Studies on Escherichia coli in pigs. II. Serological investigations.
Zentralbl Veterinarmed B. 1971 Oct;18(8):569-90. doi: 10.1111/j.1439-0450.1971.tb01661.x.

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