Erardi F X, Failla M L, Falkinham J O
Department of Biology, Virginia Polytechnic Institute, Blacksburg 24061.
Appl Environ Microbiol. 1987 Aug;53(8):1951-4. doi: 10.1128/aem.53.8.1951-1954.1987.
A copper-tolerant Mycobacterium scrofulaceum strain was able to remove copper from culture medium by sulfate-dependent precipitation as copper sulfide. Such precipitation of copper sulfide was not observed in a derivative that lacks a 173-kilobase plasmid. In addition, the plasmid-carrying strain has a sulfate-independent copper resistance mechanism.
一株耐铜的瘰疬分枝杆菌能够通过以硫化铜形式的硫酸盐依赖性沉淀作用从培养基中去除铜。在一株缺失173千碱基质粒的衍生物中未观察到这种硫化铜沉淀现象。此外,携带该质粒的菌株具有一种不依赖硫酸盐的铜抗性机制。