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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Seaweeds as a reservoir for diverse Vibrio parahaemolyticus populations in Japan
International Journal of Food Microbiology, Volume 118, No. 1, Year 2007
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Description
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. © 2007 Elsevier B.V. All rights reserved.
Authors & Co-Authors
Mahmud, Zahid Hayat
Bangladesh, Dhaka
International Centre for Diarrhoeal Disease Research Bangladesh
Japan, Tokushima
Tokushima University
Neogi, Sucharit Basu
Bangladesh, Dhaka
International Centre for Diarrhoeal Disease Research Bangladesh
Kassu, Afework
Japan, Tokushima
Tokushima University
Islam, Mohammad Sirajul
Bangladesh, Dhaka
International Centre for Diarrhoeal Disease Research Bangladesh
Nair, Gopinath Balakrish
Bangladesh, Dhaka
International Centre for Diarrhoeal Disease Research Bangladesh
Ota, Fusao
Japan, Tokushima
Tokushima University
Statistics
Citations: 53
Authors: 6
Affiliations: 2
Identifiers
Doi:
10.1016/j.ijfoodmicro.2007.05.009
ISSN:
01681605
Research Areas
Environmental
Genetics And Genomics
Study Design
Cross Sectional Study
Study Approach
Qualitative