ヤマトシジミへの腸炎ビブリオの定着

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  • Preliminary analyses on persistence of Vibrio parahaemolyticus in a brackish water clam, Corbicula japonica.
  • ヤマトシジミへの腸炎ビブリオの定着〔英文〕
  • ヤマトシジミ ヘ ノ チョウエンビブリオ ノ テイチャク エイブン

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Vibrio parahaemolyticus strains with different abilities to produce Kanagawa hemolysin were observed for persistence in a brackish water clam, Corbicula japonica, held in aquariums with artificial seawater diluted to 60% (60% seawater) and sand bed at 25°C for 28 days. The hemolysin producer persisted at a level of 103 cfu/g in the molluscs held in 30-60% seawater, while it was the highest in 60% seawater followed by 50, 40 and 30% seawater in order at the 14th day. The producer was detected from digestive organs in the highest level since the second day. Three V. parahaemolyticus strains with different productivities for Kanagawa hemolysin persisted in a level of 103 cfu/g while an Escherichia coli strain decreased to non-detectable level in 60% seawater.

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