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DOI: 10.3791/56169-v
Please note that some of the translations on this page are AI generated. Click here for the English version.
提出了一种利用生物发光标记细菌对肠出血性大肠杆菌 (大肠杆菌) 进行殖民化的小鼠模型的详细协议。在活体动物中, 通过非侵入性的体内成像系统来检测这些生物发光细菌, 可以提高我们目前对大肠杆菌定植的认识。
本实验的总体目标是使用无创体内成像系统检测小鼠体内肠出血性大肠杆菌定植。这种方法可以帮助回答肠出血性大肠杆菌致病性领域的关键问题,例如定植。该技术的主要优点是可以在活体动物中检测到 EHEC 定植,而无需牺牲动物。
首先,将含有荧光素酶质粒的负 80 摄氏度大肠杆菌 O157:H7 EDL933 细菌标线到含有每毫升 50 微克卡那霉素的 LB 琼脂平板上。在 16 摄氏度下培养细菌 18 至 37 小时。从过夜板中挑选一个菌落,用每毫升 50 微克卡那霉素接种 3 毫升 LB 培养基。
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