Midgley M
Department of Applied Biology, University of Hull, UK.
FEMS Microbiol Lett. 1994 Jul 1;120(1-2):119-23. doi: 10.1111/j.1574-6968.1994.tb07017.x.
An energy-dependent efflux system for ethidium and related cations has been detected in Enterococcus hirae ATCC 9790. The system was partially expressed when the organism was grown on a complex medium but was induced by the addition of phosphonium ions and related compounds. Mutants showing constitutive expression of the efflux system have been isolated on the basis of increased resistance to ethidium.
在海氏肠球菌ATCC 9790中检测到一种依赖能量的溴化乙锭及相关阳离子外排系统。当该生物体在复杂培养基上生长时，该系统部分表达，但通过添加鏻离子及相关化合物可诱导其表达。基于对溴化乙锭抗性增强，已分离出显示该外排系统组成型表达的突变体。
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