Seaweeds as a reservoir for diverse Vibrio parahaemolyticus populations in Japan

被引：59

作者：

Mahmud, Zahid Hayat ^{[1
]}

Neogi, Sucharit Basu

Kassu, Afework

Wada, Takaomi

Islam, M. Sirajul

Nair, G. Balakrish

Ota, Fusao

机构：

[1] Int Ctr Diarrhoeal Dis Res, Lab Sci Div, Dhaka 1212, Bangladesh

[2] Univ Tokushima, Grad Sch Hlth Biosci Res, Dept Prevent Environm & Nutr, Tokushima 7708503, Japan

[3] Hiroshima Environm & Hlth Assoc, Naka Ku, Hiroshima 7308631, Japan

来源：

INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY | 2007年 / 118卷 / 01期

关键词：

Vibrio parahaemolyticus; seaweeds; serotype; ribotype; seasonal abundance;

D O I：

10.1016/j.ijfoodmicro.2007.05.009

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Gastroenteritis caused by Vibrio parahaemolyticus has recently been associated with foods prepared with seaweeds, but little is known about the bacterium's abundance and diversity among seaweeds in coastal environment. Therefore, we determined its phenotypic and genotypic diversity in relation to its seasonal abundance in seawater and seaweed samples from three areas of Kii Channel, Japan during June 2003 to May 2004. Isolates were obtained by selective enrichment of samples and detection of V parahaemolyticus by colony hybridization with a species-specific probe. A total of 128 isolates comprising 16 from each source in each season were characterized by serotyping and ribotyping. V parahaemolyticus was more abundant in seaweeds (3762 isolates) than in water samples (2238 isolates). Twenty and 17 serotypes were found among the selected seaweed and seawater isolates, respectively. Cluster analysis revealed 19, 11, 7 and 9 ribotypes during summer, autumn, winter and spring, respectively. Seaweeds supported a diverse V.parahaemolyticus population throughout the year and thus seaweeds are a reservoir for the organism. However, V parahaemolyticus occurrence had positive correlation with water temperature and its abundance in seaweeds was at least 50 times higher during summer than in winter. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：92 / 96

页数：5

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