Rapid Discrimination of Listeria monocytogenes Strains by Microtemperature Gradient Gel Electrophoresis
نویسندگان
چکیده
منابع مشابه
Selective discrimination of Listeria monocytogenes epidemic strains by a mixed-genome DNA microarray compared to discrimination by pulsed-field gel electrophoresis, ribotyping, and multilocus sequence typing.
Listeria monocytogenes can cause serious illness in humans, and subsequent epidemiological investigation requires molecular characterization to allow the identification of specific isolates. L. monocytogenes is usually characterized by serotyping and is subtyped by using pulsed-field gel electrophoresis (PFGE) or ribotyping. DNA microarrays provide an alternative means to resolve genetic differ...
متن کاملPulsed-field gel electrophoresis (PFGE) analysis of Listeria monocytogenes.
PFGE is a valuable tool for assessing Listeria monocytogenes strain interrelatedness. It is based on the study of total bacterial DNA restriction patterns. Cells are embedded in agarose plugs before being lysed. The released DNA is then digested into large fragments by restriction enzymes. As DNA fragments are too large to be separated by traditional electrophoresis in an agarose gel, changes i...
متن کاملPopulation Genetic Structure of Listeria monocytogenes Strains as Determined by Pulsed-Field Gel Electrophoresis and Multilocus Sequence Typing
UNLABELLED Listeria monocytogenes is a ubiquitous bacterium that may cause the foodborne illness listeriosis. Only a small amount of data about the population genetic structure of strains isolated from food is available. This study aimed to provide an accurate view of the L. monocytogenes food strain population in France. From 1999 to 2014, 1,894 L. monocytogenes strains were isolated from food...
متن کاملCharacterization of Listeria monocytogenes isolates from cattle and ground beef by pulsed-field gel electrophoresis.
The aims of this study were to determine the occurrence of Listeria monocytogenes in cattle feces and ground beef, to characterize these strains by pulsed-field gel electrophoresis and to compare them to three listeria strains found in humans. Cattle from different origins (n = 250) and ground beef obtained from supermarkets (n = 40) were sampled. The results show low occurrence in cattle feces...
متن کاملMolecular typing of Listeria monocytogenes isolated in Japan by pulsed-field gel electrophoresis.
A total of 40 strains of Listeria monocytogenes which have been demonstrated to be serovar 1/2a, 1/2b, and 4b were genotyped by pulsed-field gel electrophoresis (PFGE) after separate digestion with Apa I, Asc I, Sma I, and Sse 8387 I. Twenty-seven unrelated strains including four representative strains showed distinctly different genotypes according to their PFGE profiles. Then nine strains iso...
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ژورنال
عنوان ژورنال: Journal of Clinical Microbiology
سال: 2006
ISSN: 0095-1137,1098-660X
DOI: 10.1128/jcm.00344-06