Life history of oysters influences Vibrio parahaemolyticus accumulation in Pacific oysters ( Crassostrea gigas ) - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Environmental Microbiology Année : 2022

Life history of oysters influences Vibrio parahaemolyticus accumulation in Pacific oysters ( Crassostrea gigas )

Résumé

Vibrio parahaemolyticus infection in humans is associated with raw oyster consumption. Evaluation of V . parahaemolyticus presence in oysters is of most interest because of the economic and public health issues that it represents. To explore V . parahaemolyticus accumulation and depuration in adult Crassostrea gigas , we developed a GFP‐tagged V . parahaemolyticus strain (IFVp201‐ gfp + ), as well as a rapid and efficient quantification method in C . gigas oysters haemolymph by flow cytometry. Impact of the life history of C . gigas on accumulation and depuration of V . parahaemolyticus IFVp201 was subsequently investigated. We found that naive oysters, i.e. grown in controlled facilities with UV treated seawater, accumulated significantly more IFVp201 than environmental oysters, i.e. grown in intertidal environment. We hypothesized that environmental oysters could have been immune primed, thus could limit V . parahaemolyticus accumulation. Meanwhile, both naive and environmental oysters had similar depuration rates.
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Dates et versions

hal-04202208 , version 1 (18-09-2023)

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Marion Sorée, François Delavat, Christophe Lambert, Solen Lozach, Mathias Papin, et al.. Life history of oysters influences Vibrio parahaemolyticus accumulation in Pacific oysters ( Crassostrea gigas ). Environmental Microbiology, 2022, 24 (9), pp.4401-4410. ⟨10.1111/1462-2920.15996⟩. ⟨hal-04202208⟩
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