CHARACTERIZATION OF PLASMIDS FROM LISTERIA SP

被引:11
作者
KOLSTAD, J [1 ]
RORVIK, LM [1 ]
GRANUM, PE [1 ]
机构
[1] NORWEGIAN COLL VET MED,DEPT FOOD HYG,POB 8146 DEP,N-0033 OSLO 1,NORWAY
关键词
LISTERIA; PLASMID; FOODS;
D O I
10.1016/0168-1605(91)90061-S
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Out of 139 isolates of Listeria sp. (mainly L. monocytogenes) 107 (78%) contained extrachromosomal DNA. Plasmids from 51 of these isolates were investigated further and covered a range of 8 different-sized molecules as shown by agarose gel electrophoresis. Only one of the 107 isolates contained more than one plasmid. With the exception of one plasmid from an isolate of L. seeligeri, restriction analysis and hybridization experiments showed a high degree of homology between the different plasmids.
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页码:123 / 132
页数:10
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