Influence of gametogenesis pattern and sex on paralytic shellfish toxin levels in triploid Pacific oyster Crassostrea gigas exposed to a natural bloom of Alexandrium minutum
International audience This study investigated the effect of gametogenesis pattern and sex on levels of paralytic shellfish toxins (PST) accumulated by triploid oysters Crassostrea gigas exposed to a natural bloom of the toxic dinoflagellate Alexandrium minutum in the Bay of Brest (Western Brittany,...
Published in: | Aquaculture |
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Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2016
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Online Access: | https://hal.science/hal-01483252 https://doi.org/10.1016/j.aquaculture.2016.01.001 |
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openpolar |
institution |
Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
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language |
English |
topic |
ACL Alexandrium minutum Crassostrea gigas Gametogenesis pattern Harmful algal bloom (HAB) Paralytic shellfish toxin (PST) triploid [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
ACL Alexandrium minutum Crassostrea gigas Gametogenesis pattern Harmful algal bloom (HAB) Paralytic shellfish toxin (PST) triploid [SDE.BE]Environmental Sciences/Biodiversity and Ecology Hermabessiere, L. Fabioux, Caroline Lassudrie, M. Boullot, Floriane Long, M. Lambert, Christophe Le Goïc, Nelly Gouriou, J. Le Gac, M. Chapelle, A. Soudant, Philippe Hegaret, Helene Influence of gametogenesis pattern and sex on paralytic shellfish toxin levels in triploid Pacific oyster Crassostrea gigas exposed to a natural bloom of Alexandrium minutum |
topic_facet |
ACL Alexandrium minutum Crassostrea gigas Gametogenesis pattern Harmful algal bloom (HAB) Paralytic shellfish toxin (PST) triploid [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience This study investigated the effect of gametogenesis pattern and sex on levels of paralytic shellfish toxins (PST) accumulated by triploid oysters Crassostrea gigas exposed to a natural bloom of the toxic dinoflagellate Alexandrium minutum in the Bay of Brest (Western Brittany, France), over the summer 2014. Toxin accumulation in oysters was proposed to be influenced by the proportion of energy allocated to reproduction versus other metabolisms, as proposed by Haberkorn et al. (2010). Thus, we hypothesized that triploid oysters with different gametogenesis patterns (α or β, producing respectively numerous gametes or rare gametes) could result in differences in toxin accumulation. Toxin level could also be different according to the gender of the oysters. To test these hypotheses, PST levels were measured in the digestive gland of oysters using an ELISA method. Sex, gametogenesis stage and pattern (α or β) of the triploid oysters were determined by histology. Males (24%), females (38%) and hermaphrodites (38%), including synchronous or successive hermaphrodites were represented among the sampled oysters. All of them were at mature stage (III) of gametogenesis. Both α (46%) and β (54%) patterns were represented in the sample set. In these oysters, PST levels appeared independent from sex and gametogenesis pattern. These results suggest that, in triploid oysters, PST accumulation is not influenced by energy allocated to reproduction.ăStatement of relevanceăThis study appears to be the first to investigate toxin levels depending on gametogenesis pattern in triploid oysters.ăăThis study highlighted that triploid oysters were divided into two classes, α (triploid oysters that maturate with unlocked germ cells and have a consequent number of gametes) and β (triploid oysters that display strongly reduced number of gametes and locked gonial mitosis), with the latter class subdivided into two categories: β1, which presents no germinal cell lineage, and β2, which presents germinal cell ... |
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 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)-Centre National de la Recherche Scientifique (CNRS) Station de Biologie Marine de Concarneau Direction générale déléguée à la Recherche, à l’Expertise, à la Valorisation et à l’Enseignement-Formation (DGD.REVE) Muséum national d'Histoire naturelle (MNHN)-Muséum national d'Histoire naturelle (MNHN) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Laboratoire d'Ecologie Pélagique (PELAGOS) Unité Dynamiques des Écosystèmes Côtiers (DYNECO) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-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 |
Hermabessiere, L. Fabioux, Caroline Lassudrie, M. Boullot, Floriane Long, M. Lambert, Christophe Le Goïc, Nelly Gouriou, J. Le Gac, M. Chapelle, A. Soudant, Philippe Hegaret, Helene |
author_facet |
Hermabessiere, L. Fabioux, Caroline Lassudrie, M. Boullot, Floriane Long, M. Lambert, Christophe Le Goïc, Nelly Gouriou, J. Le Gac, M. Chapelle, A. Soudant, Philippe Hegaret, Helene |
author_sort |
Hermabessiere, L. |
title |
Influence of gametogenesis pattern and sex on paralytic shellfish toxin levels in triploid Pacific oyster Crassostrea gigas exposed to a natural bloom of Alexandrium minutum |
title_short |
Influence of gametogenesis pattern and sex on paralytic shellfish toxin levels in triploid Pacific oyster Crassostrea gigas exposed to a natural bloom of Alexandrium minutum |
title_full |
Influence of gametogenesis pattern and sex on paralytic shellfish toxin levels in triploid Pacific oyster Crassostrea gigas exposed to a natural bloom of Alexandrium minutum |
title_fullStr |
Influence of gametogenesis pattern and sex on paralytic shellfish toxin levels in triploid Pacific oyster Crassostrea gigas exposed to a natural bloom of Alexandrium minutum |
title_full_unstemmed |
Influence of gametogenesis pattern and sex on paralytic shellfish toxin levels in triploid Pacific oyster Crassostrea gigas exposed to a natural bloom of Alexandrium minutum |
title_sort |
influence of gametogenesis pattern and sex on paralytic shellfish toxin levels in triploid pacific oyster crassostrea gigas exposed to a natural bloom of alexandrium minutum |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-01483252 https://doi.org/10.1016/j.aquaculture.2016.01.001 |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
ISSN: 0044-8486 EISSN: 1873-5622 Aquaculture https://hal.science/hal-01483252 Aquaculture, 2016, 455, pp.118-124. ⟨10.1016/j.aquaculture.2016.01.001⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquaculture.2016.01.001 hal-01483252 https://hal.science/hal-01483252 doi:10.1016/j.aquaculture.2016.01.001 |
op_doi |
https://doi.org/10.1016/j.aquaculture.2016.01.001 |
container_title |
Aquaculture |
container_volume |
455 |
container_start_page |
118 |
op_container_end_page |
124 |
_version_ |
1797581602522398720 |
spelling |
ftinsu:oai:HAL:hal-01483252v1 2024-04-28T08:16:29+00:00 Influence of gametogenesis pattern and sex on paralytic shellfish toxin levels in triploid Pacific oyster Crassostrea gigas exposed to a natural bloom of Alexandrium minutum Hermabessiere, L. Fabioux, Caroline Lassudrie, M. Boullot, Floriane Long, M. Lambert, Christophe Le Goïc, Nelly Gouriou, J. Le Gac, M. Chapelle, A. Soudant, Philippe 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 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)-Centre National de la Recherche Scientifique (CNRS) Station de Biologie Marine de Concarneau Direction générale déléguée à la Recherche, à l’Expertise, à la Valorisation et à l’Enseignement-Formation (DGD.REVE) Muséum national d'Histoire naturelle (MNHN)-Muséum national d'Histoire naturelle (MNHN) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Laboratoire d'Ecologie Pélagique (PELAGOS) Unité Dynamiques des Écosystèmes Côtiers (DYNECO) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-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) 2016-03-20 https://hal.science/hal-01483252 https://doi.org/10.1016/j.aquaculture.2016.01.001 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquaculture.2016.01.001 hal-01483252 https://hal.science/hal-01483252 doi:10.1016/j.aquaculture.2016.01.001 ISSN: 0044-8486 EISSN: 1873-5622 Aquaculture https://hal.science/hal-01483252 Aquaculture, 2016, 455, pp.118-124. ⟨10.1016/j.aquaculture.2016.01.001⟩ ACL Alexandrium minutum Crassostrea gigas Gametogenesis pattern Harmful algal bloom (HAB) Paralytic shellfish toxin (PST) triploid [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2016 ftinsu https://doi.org/10.1016/j.aquaculture.2016.01.001 2024-04-05T00:47:53Z International audience This study investigated the effect of gametogenesis pattern and sex on levels of paralytic shellfish toxins (PST) accumulated by triploid oysters Crassostrea gigas exposed to a natural bloom of the toxic dinoflagellate Alexandrium minutum in the Bay of Brest (Western Brittany, France), over the summer 2014. Toxin accumulation in oysters was proposed to be influenced by the proportion of energy allocated to reproduction versus other metabolisms, as proposed by Haberkorn et al. (2010). Thus, we hypothesized that triploid oysters with different gametogenesis patterns (α or β, producing respectively numerous gametes or rare gametes) could result in differences in toxin accumulation. Toxin level could also be different according to the gender of the oysters. To test these hypotheses, PST levels were measured in the digestive gland of oysters using an ELISA method. Sex, gametogenesis stage and pattern (α or β) of the triploid oysters were determined by histology. Males (24%), females (38%) and hermaphrodites (38%), including synchronous or successive hermaphrodites were represented among the sampled oysters. All of them were at mature stage (III) of gametogenesis. Both α (46%) and β (54%) patterns were represented in the sample set. In these oysters, PST levels appeared independent from sex and gametogenesis pattern. These results suggest that, in triploid oysters, PST accumulation is not influenced by energy allocated to reproduction.ăStatement of relevanceăThis study appears to be the first to investigate toxin levels depending on gametogenesis pattern in triploid oysters.ăăThis study highlighted that triploid oysters were divided into two classes, α (triploid oysters that maturate with unlocked germ cells and have a consequent number of gametes) and β (triploid oysters that display strongly reduced number of gametes and locked gonial mitosis), with the latter class subdivided into two categories: β1, which presents no germinal cell lineage, and β2, which presents germinal cell ... Article in Journal/Newspaper Crassostrea gigas Pacific oyster Institut national des sciences de l'Univers: HAL-INSU Aquaculture 455 118 124 |