Influence of the parasite worm Polydora sp. on the behaviour of the oyster Crassostrea gigas: a study of the respiratory impact and associated oxidative stress
The aim of this study was to investigate how the worm Polydora sp., which induces oysters into creating mud blisters in response to an irritation within their shells, could interfere with the oyster Crassostrea gigas physiology and ethology. The impact was characterized by studying two groups of oys...
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ftoskarbordeaux:oai:oskar-bordeaux.fr:20.500.12278/199022 2024-05-19T07:39:15+00:00 Influence of the parasite worm Polydora sp. on the behaviour of the oyster Crassostrea gigas: a study of the respiratory impact and associated oxidative stress CHAMBON, Caroline LEGEAY, Alexia DURRIEU, Gilles GONZALEZ, Patrice CIRET, Pierre MASSABUAU, Jean-Charles 2007-04-24 https://oskar-bordeaux.fr/handle/20.500.12278/199022 https://hdl.handle.net/20.500.12278/199022 http://hal.archives-ouvertes.fr/hal-00909889 https://doi.org/10.1007/s00227-007-0693-1 EN eng 0025-3162 http://hal.archives-ouvertes.fr/hal-00909889 oai:crossref.org:10.1007/s00227-007-0693-1 ftccsdartic:oai:hal.archives-ouvertes.fr:hal-00909889 oai:researchgate.net:225769956 https://oskar-bordeaux.fr/handle/20.500.12278/199022 doi:10.1007/s00227-007-0693-1 open Pas de Licence CC crossref base researchgate Sciences de l'environnement Article de revue 2007 ftoskarbordeaux https://doi.org/20.500.12278/19902210.1007/s00227-007-0693-1 2024-04-22T01:35:05Z The aim of this study was to investigate how the worm Polydora sp., which induces oysters into creating mud blisters in response to an irritation within their shells, could interfere with the oyster Crassostrea gigas physiology and ethology. The impact was characterized by studying two groups of oysters (non-parasitized and parasitized) during a 30 days period: (1) the animal behaviour by analysing their valve activity (valvometry), and (2) the animal respiratory physiology by measuring in vivo the oxygen partial pressure and the specific oxygen consumption in selected tissues (heart, fast and slow adductor muscle). We also researched a putative impact on the expression of several oxidative stress genes at the heart level. Our results show that Polydora sp. is clearly an oyster’s parasite as it induces a decrease in oyster growth according to the infestation intensity. Moreover, it modifies the behaviour and the respiratory physiology of the molluscs. Infested animals opened more frequently but for less time and their level of blood oxygenation was systematically higher than healthy molluscs. These high levels of oxygenation had no effect on the oxidative metabolism of the tissues studied but they induced oxidative stress. Indeed, the superoxide dismutase gene showed a threefold increase in expression in the heart of infested oysters. A putative scenario of the weakening mechanism is proposed. Article in Journal/Newspaper Crassostrea gigas OSKAR Bordeaux (Open Science Knowledge ARchive) Marine Biology 152 2 329 338 |
institution |
Open Polar |
collection |
OSKAR Bordeaux (Open Science Knowledge ARchive) |
op_collection_id |
ftoskarbordeaux |
language |
English |
topic |
Sciences de l'environnement |
spellingShingle |
Sciences de l'environnement CHAMBON, Caroline LEGEAY, Alexia DURRIEU, Gilles GONZALEZ, Patrice CIRET, Pierre MASSABUAU, Jean-Charles Influence of the parasite worm Polydora sp. on the behaviour of the oyster Crassostrea gigas: a study of the respiratory impact and associated oxidative stress |
topic_facet |
Sciences de l'environnement |
description |
The aim of this study was to investigate how the worm Polydora sp., which induces oysters into creating mud blisters in response to an irritation within their shells, could interfere with the oyster Crassostrea gigas physiology and ethology. The impact was characterized by studying two groups of oysters (non-parasitized and parasitized) during a 30 days period: (1) the animal behaviour by analysing their valve activity (valvometry), and (2) the animal respiratory physiology by measuring in vivo the oxygen partial pressure and the specific oxygen consumption in selected tissues (heart, fast and slow adductor muscle). We also researched a putative impact on the expression of several oxidative stress genes at the heart level. Our results show that Polydora sp. is clearly an oyster’s parasite as it induces a decrease in oyster growth according to the infestation intensity. Moreover, it modifies the behaviour and the respiratory physiology of the molluscs. Infested animals opened more frequently but for less time and their level of blood oxygenation was systematically higher than healthy molluscs. These high levels of oxygenation had no effect on the oxidative metabolism of the tissues studied but they induced oxidative stress. Indeed, the superoxide dismutase gene showed a threefold increase in expression in the heart of infested oysters. A putative scenario of the weakening mechanism is proposed. |
format |
Article in Journal/Newspaper |
author |
CHAMBON, Caroline LEGEAY, Alexia DURRIEU, Gilles GONZALEZ, Patrice CIRET, Pierre MASSABUAU, Jean-Charles |
author_facet |
CHAMBON, Caroline LEGEAY, Alexia DURRIEU, Gilles GONZALEZ, Patrice CIRET, Pierre MASSABUAU, Jean-Charles |
author_sort |
CHAMBON, Caroline |
title |
Influence of the parasite worm Polydora sp. on the behaviour of the oyster Crassostrea gigas: a study of the respiratory impact and associated oxidative stress |
title_short |
Influence of the parasite worm Polydora sp. on the behaviour of the oyster Crassostrea gigas: a study of the respiratory impact and associated oxidative stress |
title_full |
Influence of the parasite worm Polydora sp. on the behaviour of the oyster Crassostrea gigas: a study of the respiratory impact and associated oxidative stress |
title_fullStr |
Influence of the parasite worm Polydora sp. on the behaviour of the oyster Crassostrea gigas: a study of the respiratory impact and associated oxidative stress |
title_full_unstemmed |
Influence of the parasite worm Polydora sp. on the behaviour of the oyster Crassostrea gigas: a study of the respiratory impact and associated oxidative stress |
title_sort |
influence of the parasite worm polydora sp. on the behaviour of the oyster crassostrea gigas: a study of the respiratory impact and associated oxidative stress |
publishDate |
2007 |
url |
https://oskar-bordeaux.fr/handle/20.500.12278/199022 https://hdl.handle.net/20.500.12278/199022 http://hal.archives-ouvertes.fr/hal-00909889 https://doi.org/10.1007/s00227-007-0693-1 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
crossref base researchgate |
op_relation |
0025-3162 http://hal.archives-ouvertes.fr/hal-00909889 oai:crossref.org:10.1007/s00227-007-0693-1 ftccsdartic:oai:hal.archives-ouvertes.fr:hal-00909889 oai:researchgate.net:225769956 https://oskar-bordeaux.fr/handle/20.500.12278/199022 doi:10.1007/s00227-007-0693-1 |
op_rights |
open Pas de Licence CC |
op_doi |
https://doi.org/20.500.12278/19902210.1007/s00227-007-0693-1 |
container_title |
Marine Biology |
container_volume |
152 |
container_issue |
2 |
container_start_page |
329 |
op_container_end_page |
338 |
_version_ |
1799478813674962944 |