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KMID : 0545119990090010078
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Journal of Microbiology and Biotechnology
1999 Volume.9 No. 1 p.78 ~ p.83
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Intraspecific Variation of Environmental and Clinical Vibrio vulnificus Isolates as Demonstrated by Restriction Endonuclease Digestion Profiles
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Kim, Ki Yong
Yang, Ho Chul/Mark L.Tamplin/Choi, Sang Ho
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Abstract
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Thirty-six environmental isolates of Vibrio vulnificus obtained From seawater. sediments, and raw seafoods. and 18 clinical isolates from vibrio septicemia patients were typed by restriction endonuelcase digestion profiles (REDP) of genomic DNA with Sfil. The results revealed a high-level of variation in REDPs, indicating a vast genonmic diversity among v. vulnificus strains. Genetic relatedness of the strains showed similarities ranging from 10% to 100%. Different REDPs for isolates from various raw seafoods were obtained, and clustering of strains according to type of seafoods was not observed. In contrast, clinical isolates of V. vulnificus showed higher similarity to one another, and could he subdivided into one separate group. The difference in REDPs of the V. vulnificus isolates, from clinical origin and from raw seafoods substantiates the previous observation that only a single type of pathogenic strain was involved in each human infection, despite the numerous genetically polymorphic strains found from implicated oysters.
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KEYWORD
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