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中文摘要：
通过改良的组织平板培养法及ERIC—PCR方法对48株PA生物被膜的形成进行定量分析并绘制其指纹图谱。结果发现：48株PA菌株生物被膜形成能力不同，且在17％相似水平上分为A、B、C、D、E五个基因型，其中生物被膜形成能力较弱的菌株大多属于前三个基因型，而D和E基因型则包含了大部分生物被膜形成能力较强的菌株，这表明不同生物被膜形成能力的PA在5个基因型中的分布并非随机的，菌株生物被膜形成能力和基因型之间具有一定的相关性。
英文摘要：
Biofilms have been a great problem to food safety and human health. And it is also hard to eradicate them. In this paper, we used a modified microtiter dish method and ERIC-PCR to lest the biofilm-forming ability and genotype in 48 Pseudomonas aeruginosa strains, The results showed that each Pseudomonas aeruginosa had different biofilm-fonning ability and in ERIC-PCR analysis five groups were identified at a similarity level of 17%. Most of the strains which showed higher biofilm-forming ability belonged to cluster D and E, while most others with lower ability pertained to the first three clusters. So we concluded that the strains were not randomly distributed in the five ERIC-PCR groups and there was a relationship between the biofilm-forming ability and genotype.
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