鸭源大肠杆菌分离株耐药质粒消除的研究
Heilongjiang Animal Science and Veterinary Medicine（2015）
Abstract
为了了解十二烷胺磺酸钠(SDS)对鸭源大肠杆菌耐药质粒的消除情况,试验选取大肠杆菌分离株E.coil1,采用质粒小提试剂盒对试验菌进行质粒提取,以质粒DNA为模板进行TEM型耐药基因的PCR检测,采用高温-SDS法对检测结果为阳性者进行耐药质粒消除试验,采用琼脂糖凝胶电泳检测质粒条带图谱并结合药敏试验对质粒消除情况进行判断.结果表明:E.coil1的TEM型耐药基因存在于质粒上;试验菌经高温-SDS交替处理至第7次时,恢复了对8种β-内酰胺类抗生素的敏感性.说明耐药质粒已成功消除.
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