PARTIAL CHARACTERIZATION OF PLASMIDS FROM RABBIT ISOLATES OF PASTEURELLA-MULTOCIDA

被引:0
|
作者
GUNTHER, R [1 ]
MANNING, PJ [1 ]
BOUMA, JE [1 ]
DELONG, D [1 ]
COOK, DB [1 ]
机构
[1] UNIV MINNESOTA, COLL VET MED, DEPT DIAGNOST INVEST, ST PAUL, MN 55108 USA
来源
LABORATORY ANIMAL SCIENCE | 1991年 / 41卷 / 05期
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中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Plasmids have not been reported for isolates of Pasteurella multocida from rabbits. We assayed 28 isolates of rabbit P. multocida for plasmids and sought to determine whether or not plasmid presence correlated with clinical or pathologic findings, serotype, toxin production, possession of pili, or biochemical characteristics. Fourteen isolates bore a single 1.6 Md (covalently closed circular form in 0.7% agarose gels) plasmid. An additional isolate had two plasmids which migrated as a closely-spaced doublet, centered around 1.6 Md. Eleven isolates appeared to have identical plasmids, according to Hae III and Hinf I digests. The apparent linear size of this common plasmid in 2% agarose gels was 2.1 Md, as calculated from the sums of the sizes of Hae III or Hinf I digestion fragments. Linearization of the common plasmid with Msp I produced an apparent size of 2.5 Md in 0.7% agarose gels. No correlations between presence of the common plasmid and somatic serotype, toxigenicity, presence of pili, antimicrobial resistance, selected biochemical characteristics, anatomic site from which the bacteria were cultured, or disease status of the host were found.
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页码:423 / 426
页数:4
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