Interaction between toxic dinoflagellate Alexandrium catenella exposure and disease associated with herpesvirus OsHV-1 in Pacific oyster spat Crassostrea gigas.
International audience Blooms of toxic dinoflagellates can co-occur with mass mortality events associated with herpesvirus OsHV-1 μVar infection that have been decimating Pacific oyster Crassostrea gigas spat and juveniles every summer since 2008 in France. This study investigated the possible effec...
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Format: | Article in Journal/Newspaper |
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Online Access: | https://doi.org/10.1016/j.hal.2015.04.007 https://hal.archives-ouvertes.fr/hal-01154224 |
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fttriple:oai:gotriple.eu:10670/1.i4xtvi 2023-05-15T15:57:49+02:00 Interaction between toxic dinoflagellate Alexandrium catenella exposure and disease associated with herpesvirus OsHV-1 in Pacific oyster spat Crassostrea gigas. Lassudrie, Malwenn Soudant, Philippe Nicolas, Jean-Louis Fabioux, Caroline Miner, Philippe Le Grand, Jacqueline Lambert, Christophe Petton, Bruno Hegaret, Helene Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) ANR-13-CESA-0019,ACCUTOX,De la caractérisation des déterminants de l'accumulation des toxines paralysantes (PST) chez l'huître (Crassostrea gigas) au risque sanitaire pour l'homme dans son contexte sociétal(2013) 2015-05-01 https://doi.org/10.1016/j.hal.2015.04.007 https://hal.archives-ouvertes.fr/hal-01154224 en eng HAL CCSD Elsevier hal-01154224 doi:10.1016/j.hal.2015.04.007 10670/1.i4xtvi https://hal.archives-ouvertes.fr/hal-01154224 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1568-9883 Harmful Algae Harmful Algae, Elsevier, 2015, 45, pp.53-61. ⟨10.1016/j.hal.2015.04.007⟩ OsHV-1 μVar Crassostrea gigas Alexandrium Host–pathogen interaction PST accumulation Harmful algal blooms envir socio Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2015 fttriple https://doi.org/10.1016/j.hal.2015.04.007 2023-01-22T17:30:02Z International audience Blooms of toxic dinoflagellates can co-occur with mass mortality events associated with herpesvirus OsHV-1 μVar infection that have been decimating Pacific oyster Crassostrea gigas spat and juveniles every summer since 2008 in France. This study investigated the possible effect of a harmful dinoflagellate, Alexandrium catenella, a producer of Paralytic Shellfish Toxins (PSTs), upon the oyster spat–herpesvirus interaction. Oyster spat from a hatchery were challenged by cohabitation with oysters contaminated in the field with OsHV-1 μVar and possibly other pathogens. Simultaneously, the oysters were exposed to cultured A. catenella. Infection with OsHV-1 μVar and PST accumulation were measured after 4 days of experimental exposure.Exposure to Alexandrium catenella modified the host–pathogen interaction by reducing prevalence of OsHV-1 μVar infection. In addition, oysters challenged with OsHV-1 μVar and possibly other pathogens from the environment accumulated smaller amounts of PSTs than unchallenged oysters. Three possible mechanisms are suggested by these results: (i) possible direct interactions between A. catenella and herpesvirus (or associated pathogens) could reduce viral transmission and algal availability for oyster consumption; (ii) oyster feeding behavior or digestive functions may have been altered, thus decreasing both uptake of viral particles and consumption or digestion of toxic algae and consequent toxin accumulation; (iii) immuno-activation by A. catenella could enhance defense efficiency against OsHV-1 μVar infection. These findings suggest further research on relationships between OsHV-1 μVar and toxic dinoflagellates and their combined effects upon disease transmission and proliferation processes, as well as on oyster physiological and immunological involvement in this complex, tripartite interaction. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Unknown Pacific Harmful Algae 45 53 61 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
OsHV-1 μVar Crassostrea gigas Alexandrium Host–pathogen interaction PST accumulation Harmful algal blooms envir socio |
spellingShingle |
OsHV-1 μVar Crassostrea gigas Alexandrium Host–pathogen interaction PST accumulation Harmful algal blooms envir socio Lassudrie, Malwenn Soudant, Philippe Nicolas, Jean-Louis Fabioux, Caroline Miner, Philippe Le Grand, Jacqueline Lambert, Christophe Petton, Bruno Hegaret, Helene Interaction between toxic dinoflagellate Alexandrium catenella exposure and disease associated with herpesvirus OsHV-1 in Pacific oyster spat Crassostrea gigas. |
topic_facet |
OsHV-1 μVar Crassostrea gigas Alexandrium Host–pathogen interaction PST accumulation Harmful algal blooms envir socio |
description |
International audience Blooms of toxic dinoflagellates can co-occur with mass mortality events associated with herpesvirus OsHV-1 μVar infection that have been decimating Pacific oyster Crassostrea gigas spat and juveniles every summer since 2008 in France. This study investigated the possible effect of a harmful dinoflagellate, Alexandrium catenella, a producer of Paralytic Shellfish Toxins (PSTs), upon the oyster spat–herpesvirus interaction. Oyster spat from a hatchery were challenged by cohabitation with oysters contaminated in the field with OsHV-1 μVar and possibly other pathogens. Simultaneously, the oysters were exposed to cultured A. catenella. Infection with OsHV-1 μVar and PST accumulation were measured after 4 days of experimental exposure.Exposure to Alexandrium catenella modified the host–pathogen interaction by reducing prevalence of OsHV-1 μVar infection. In addition, oysters challenged with OsHV-1 μVar and possibly other pathogens from the environment accumulated smaller amounts of PSTs than unchallenged oysters. Three possible mechanisms are suggested by these results: (i) possible direct interactions between A. catenella and herpesvirus (or associated pathogens) could reduce viral transmission and algal availability for oyster consumption; (ii) oyster feeding behavior or digestive functions may have been altered, thus decreasing both uptake of viral particles and consumption or digestion of toxic algae and consequent toxin accumulation; (iii) immuno-activation by A. catenella could enhance defense efficiency against OsHV-1 μVar infection. These findings suggest further research on relationships between OsHV-1 μVar and toxic dinoflagellates and their combined effects upon disease transmission and proliferation processes, as well as on oyster physiological and immunological involvement in this complex, tripartite interaction. |
author2 |
Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) ANR-13-CESA-0019,ACCUTOX,De la caractérisation des déterminants de l'accumulation des toxines paralysantes (PST) chez l'huître (Crassostrea gigas) au risque sanitaire pour l'homme dans son contexte sociétal(2013) |
format |
Article in Journal/Newspaper |
author |
Lassudrie, Malwenn Soudant, Philippe Nicolas, Jean-Louis Fabioux, Caroline Miner, Philippe Le Grand, Jacqueline Lambert, Christophe Petton, Bruno Hegaret, Helene |
author_facet |
Lassudrie, Malwenn Soudant, Philippe Nicolas, Jean-Louis Fabioux, Caroline Miner, Philippe Le Grand, Jacqueline Lambert, Christophe Petton, Bruno Hegaret, Helene |
author_sort |
Lassudrie, Malwenn |
title |
Interaction between toxic dinoflagellate Alexandrium catenella exposure and disease associated with herpesvirus OsHV-1 in Pacific oyster spat Crassostrea gigas. |
title_short |
Interaction between toxic dinoflagellate Alexandrium catenella exposure and disease associated with herpesvirus OsHV-1 in Pacific oyster spat Crassostrea gigas. |
title_full |
Interaction between toxic dinoflagellate Alexandrium catenella exposure and disease associated with herpesvirus OsHV-1 in Pacific oyster spat Crassostrea gigas. |
title_fullStr |
Interaction between toxic dinoflagellate Alexandrium catenella exposure and disease associated with herpesvirus OsHV-1 in Pacific oyster spat Crassostrea gigas. |
title_full_unstemmed |
Interaction between toxic dinoflagellate Alexandrium catenella exposure and disease associated with herpesvirus OsHV-1 in Pacific oyster spat Crassostrea gigas. |
title_sort |
interaction between toxic dinoflagellate alexandrium catenella exposure and disease associated with herpesvirus oshv-1 in pacific oyster spat crassostrea gigas. |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://doi.org/10.1016/j.hal.2015.04.007 https://hal.archives-ouvertes.fr/hal-01154224 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1568-9883 Harmful Algae Harmful Algae, Elsevier, 2015, 45, pp.53-61. ⟨10.1016/j.hal.2015.04.007⟩ |
op_relation |
hal-01154224 doi:10.1016/j.hal.2015.04.007 10670/1.i4xtvi https://hal.archives-ouvertes.fr/hal-01154224 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1016/j.hal.2015.04.007 |
container_title |
Harmful Algae |
container_volume |
45 |
container_start_page |
53 |
op_container_end_page |
61 |
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1766393521813585920 |