Effects of Alexandrium minutum exposure on nutrition-related processes and reproductive output in oysters Crassostrea gigas.
International audience This study assessed the effects of an artificial bloom of the toxin-producing dinoflagellate, Alexandrium minutum, upon nutrition related processes and reproductive output of the Pacific oyster, Crassostrea gigas. Oysters were exposed to A. minutum, Paralytic Shellfish Toxins...
Published in: | Harmful Algae |
---|---|
Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2010
|
Subjects: | |
Online Access: | https://hal.science/hal-00589386 https://hal.science/hal-00589386/document https://hal.science/hal-00589386/file/Haberkorn-et-al_2010_HarmAlg_9_427-439_MS.pdf https://doi.org/10.1016/j.hal.2010.01.003 |
id |
ftnormandieuniv:oai:HAL:hal-00589386v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Normandie Université: HAL |
op_collection_id |
ftnormandieuniv |
language |
English |
topic |
[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
spellingShingle |
[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis Haberkorn, Hansy Lambert, Christophe Le Goïc, Nelly Moal, Jeanne Suquet, Marc Guéguen, Marielle Sunila, Inke Soudant, Philippe Effects of Alexandrium minutum exposure on nutrition-related processes and reproductive output in oysters Crassostrea gigas. |
topic_facet |
[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
description |
International audience This study assessed the effects of an artificial bloom of the toxin-producing dinoflagellate, Alexandrium minutum, upon nutrition related processes and reproductive output of the Pacific oyster, Crassostrea gigas. Oysters were exposed to A. minutum, Paralytic Shellfish Toxins (PST) producer and compared to a control batch of oysters fed Isochrysis galbana clone Tahitian (T.Iso). The experiment was performed in June 2008, when oysters were found ripe. Several physiological variables of oysters, such as PSTs accumulation, digestive gland and histological observations as well as spermatozoa quality, were measured at the end of the exposure. Results indicate that the digestive gland was greatly impacted upon A. minutum exposure. Monoacylglycerol and diacylglycerol contents as well as phospholipids (mainly phosphatidylcholine) drastically decreased in the digestive gland of oysters exposed to A. minutum compared to control oysters. At the same time, many oysters exposed to the harmful microalgae presented a strong inflammatory response in different tissues of the digestive gland: in intestine as well as in digestive ducts and tubules. Spermatozoa in oysters exposed to A. minutum were morphologically and functionally modified compared to spermatozoa of control oysters. Indeed, spermatozoa were less motile and had lower ATP content in oysters exposed to A. minutum. Meanwhile, spermatozoa produced by control oysters showed higher percentage of mortality and relative DNA content than those produced by A. minutum exposed oysters. Finally, the characteristics of the mitochondria of spermatozoa also appeared to be modified upon A. minutum exposure. The results of this study suggests that an exposure of oysters to A. minutum, reducing energy status and motility of spermatozoa associated to morphological changes at the cellular and sub-cellular levels, can have consequences on spermatozoa fertility and reproduction success. |
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) Université européenne de Bretagne - European University of Brittany (UEB) Physiologie et Ecophysiologie des Mollusques Marins (PE2M) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Phycotoxines (PHYC) 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) Bureau of Aquaculture bureau of aquaculture |
format |
Article in Journal/Newspaper |
author |
Haberkorn, Hansy Lambert, Christophe Le Goïc, Nelly Moal, Jeanne Suquet, Marc Guéguen, Marielle Sunila, Inke Soudant, Philippe |
author_facet |
Haberkorn, Hansy Lambert, Christophe Le Goïc, Nelly Moal, Jeanne Suquet, Marc Guéguen, Marielle Sunila, Inke Soudant, Philippe |
author_sort |
Haberkorn, Hansy |
title |
Effects of Alexandrium minutum exposure on nutrition-related processes and reproductive output in oysters Crassostrea gigas. |
title_short |
Effects of Alexandrium minutum exposure on nutrition-related processes and reproductive output in oysters Crassostrea gigas. |
title_full |
Effects of Alexandrium minutum exposure on nutrition-related processes and reproductive output in oysters Crassostrea gigas. |
title_fullStr |
Effects of Alexandrium minutum exposure on nutrition-related processes and reproductive output in oysters Crassostrea gigas. |
title_full_unstemmed |
Effects of Alexandrium minutum exposure on nutrition-related processes and reproductive output in oysters Crassostrea gigas. |
title_sort |
effects of alexandrium minutum exposure on nutrition-related processes and reproductive output in oysters crassostrea gigas. |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-00589386 https://hal.science/hal-00589386/document https://hal.science/hal-00589386/file/Haberkorn-et-al_2010_HarmAlg_9_427-439_MS.pdf https://doi.org/10.1016/j.hal.2010.01.003 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
ISSN: 1568-9883 EISSN: 1878-1470 Harmful Algae https://hal.science/hal-00589386 Harmful Algae, 2010, 9 (5), pp.427-439. ⟨10.1016/j.hal.2010.01.003⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.hal.2010.01.003 hal-00589386 https://hal.science/hal-00589386 https://hal.science/hal-00589386/document https://hal.science/hal-00589386/file/Haberkorn-et-al_2010_HarmAlg_9_427-439_MS.pdf doi:10.1016/j.hal.2010.01.003 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.hal.2010.01.003 |
container_title |
Harmful Algae |
container_volume |
9 |
container_issue |
5 |
container_start_page |
427 |
op_container_end_page |
439 |
_version_ |
1802643534361133056 |
spelling |
ftnormandieuniv:oai:HAL:hal-00589386v1 2024-06-23T07:52:16+00:00 Effects of Alexandrium minutum exposure on nutrition-related processes and reproductive output in oysters Crassostrea gigas. Haberkorn, Hansy Lambert, Christophe Le Goïc, Nelly Moal, Jeanne Suquet, Marc Guéguen, Marielle Sunila, Inke Soudant, Philippe 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) Université européenne de Bretagne - European University of Brittany (UEB) Physiologie et Ecophysiologie des Mollusques Marins (PE2M) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Phycotoxines (PHYC) 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) Bureau of Aquaculture bureau of aquaculture 2010-06-10 https://hal.science/hal-00589386 https://hal.science/hal-00589386/document https://hal.science/hal-00589386/file/Haberkorn-et-al_2010_HarmAlg_9_427-439_MS.pdf https://doi.org/10.1016/j.hal.2010.01.003 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.hal.2010.01.003 hal-00589386 https://hal.science/hal-00589386 https://hal.science/hal-00589386/document https://hal.science/hal-00589386/file/Haberkorn-et-al_2010_HarmAlg_9_427-439_MS.pdf doi:10.1016/j.hal.2010.01.003 info:eu-repo/semantics/OpenAccess ISSN: 1568-9883 EISSN: 1878-1470 Harmful Algae https://hal.science/hal-00589386 Harmful Algae, 2010, 9 (5), pp.427-439. ⟨10.1016/j.hal.2010.01.003⟩ [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis info:eu-repo/semantics/article Journal articles 2010 ftnormandieuniv https://doi.org/10.1016/j.hal.2010.01.003 2024-05-27T23:58:18Z International audience This study assessed the effects of an artificial bloom of the toxin-producing dinoflagellate, Alexandrium minutum, upon nutrition related processes and reproductive output of the Pacific oyster, Crassostrea gigas. Oysters were exposed to A. minutum, Paralytic Shellfish Toxins (PST) producer and compared to a control batch of oysters fed Isochrysis galbana clone Tahitian (T.Iso). The experiment was performed in June 2008, when oysters were found ripe. Several physiological variables of oysters, such as PSTs accumulation, digestive gland and histological observations as well as spermatozoa quality, were measured at the end of the exposure. Results indicate that the digestive gland was greatly impacted upon A. minutum exposure. Monoacylglycerol and diacylglycerol contents as well as phospholipids (mainly phosphatidylcholine) drastically decreased in the digestive gland of oysters exposed to A. minutum compared to control oysters. At the same time, many oysters exposed to the harmful microalgae presented a strong inflammatory response in different tissues of the digestive gland: in intestine as well as in digestive ducts and tubules. Spermatozoa in oysters exposed to A. minutum were morphologically and functionally modified compared to spermatozoa of control oysters. Indeed, spermatozoa were less motile and had lower ATP content in oysters exposed to A. minutum. Meanwhile, spermatozoa produced by control oysters showed higher percentage of mortality and relative DNA content than those produced by A. minutum exposed oysters. Finally, the characteristics of the mitochondria of spermatozoa also appeared to be modified upon A. minutum exposure. The results of this study suggests that an exposure of oysters to A. minutum, reducing energy status and motility of spermatozoa associated to morphological changes at the cellular and sub-cellular levels, can have consequences on spermatozoa fertility and reproduction success. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Normandie Université: HAL Pacific Harmful Algae 9 5 427 439 |