Stress and Stress-Induced Neuroendocrine Changes Increase the Susceptibility of Juvenile Oysters ( Crassostrea gigas ) to Vibrio splendidus
ABSTRACT Oysters are permanently exposed to various microbes, and their defense system is continuously solicited to prevent accumulation of invading and pathogenic organisms. Therefore, impairment of the animal's defense system usually results in mass mortalities in cultured oyster stocks or in...
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Language: | English |
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American Society for Microbiology
2001
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Online Access: | http://dx.doi.org/10.1128/aem.67.5.2304-2309.2001 https://journals.asm.org/doi/pdf/10.1128/AEM.67.5.2304-2309.2001 |
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crasmicro:10.1128/aem.67.5.2304-2309.2001 2024-06-23T07:52:15+00:00 Stress and Stress-Induced Neuroendocrine Changes Increase the Susceptibility of Juvenile Oysters ( Crassostrea gigas ) to Vibrio splendidus Lacoste, Arnaud Jalabert, Fabienne Malham, Shelagh K. Cueff, Anne Poulet, Serge A. 2001 http://dx.doi.org/10.1128/aem.67.5.2304-2309.2001 https://journals.asm.org/doi/pdf/10.1128/AEM.67.5.2304-2309.2001 en eng American Society for Microbiology https://journals.asm.org/non-commercial-tdm-license Applied and Environmental Microbiology volume 67, issue 5, page 2304-2309 ISSN 0099-2240 1098-5336 journal-article 2001 crasmicro https://doi.org/10.1128/aem.67.5.2304-2309.2001 2024-06-03T08:10:33Z ABSTRACT Oysters are permanently exposed to various microbes, and their defense system is continuously solicited to prevent accumulation of invading and pathogenic organisms. Therefore, impairment of the animal's defense system usually results in mass mortalities in cultured oyster stocks or increased bacterial loads in food products intended for human consumption. In the present study, experiments were conducted to examine the effects of stress on the juvenile oyster's resistance to the oyster pathogen Vibrio splendidus . Oysters ( Crassostrea gigas ) were challenged with a low dose of a pathogenic V. splendidus strain and subjected to a mechanical stress 3 days later. Both mortality and V. splendidus loads increased in stressed oysters, whereas they remained low in unstressed animals. Injection of noradrenaline or adrenocorticotropic hormone, two key components of the oyster neuroendocrine stress response system, also caused higher mortality and increased accumulation of V. splendidus in challenged oysters. These results suggest that the physiological changes imposed by stress, or stress hormones, influenced host-pathogen interactions in oysters and increased juvenile C. gigas vulnerability to Vibrio splendidus . Article in Journal/Newspaper Crassostrea gigas ASM Journals (American Society for Microbiology) Applied and Environmental Microbiology 67 5 2304 2309 |
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ASM Journals (American Society for Microbiology) |
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crasmicro |
language |
English |
description |
ABSTRACT Oysters are permanently exposed to various microbes, and their defense system is continuously solicited to prevent accumulation of invading and pathogenic organisms. Therefore, impairment of the animal's defense system usually results in mass mortalities in cultured oyster stocks or increased bacterial loads in food products intended for human consumption. In the present study, experiments were conducted to examine the effects of stress on the juvenile oyster's resistance to the oyster pathogen Vibrio splendidus . Oysters ( Crassostrea gigas ) were challenged with a low dose of a pathogenic V. splendidus strain and subjected to a mechanical stress 3 days later. Both mortality and V. splendidus loads increased in stressed oysters, whereas they remained low in unstressed animals. Injection of noradrenaline or adrenocorticotropic hormone, two key components of the oyster neuroendocrine stress response system, also caused higher mortality and increased accumulation of V. splendidus in challenged oysters. These results suggest that the physiological changes imposed by stress, or stress hormones, influenced host-pathogen interactions in oysters and increased juvenile C. gigas vulnerability to Vibrio splendidus . |
format |
Article in Journal/Newspaper |
author |
Lacoste, Arnaud Jalabert, Fabienne Malham, Shelagh K. Cueff, Anne Poulet, Serge A. |
spellingShingle |
Lacoste, Arnaud Jalabert, Fabienne Malham, Shelagh K. Cueff, Anne Poulet, Serge A. Stress and Stress-Induced Neuroendocrine Changes Increase the Susceptibility of Juvenile Oysters ( Crassostrea gigas ) to Vibrio splendidus |
author_facet |
Lacoste, Arnaud Jalabert, Fabienne Malham, Shelagh K. Cueff, Anne Poulet, Serge A. |
author_sort |
Lacoste, Arnaud |
title |
Stress and Stress-Induced Neuroendocrine Changes Increase the Susceptibility of Juvenile Oysters ( Crassostrea gigas ) to Vibrio splendidus |
title_short |
Stress and Stress-Induced Neuroendocrine Changes Increase the Susceptibility of Juvenile Oysters ( Crassostrea gigas ) to Vibrio splendidus |
title_full |
Stress and Stress-Induced Neuroendocrine Changes Increase the Susceptibility of Juvenile Oysters ( Crassostrea gigas ) to Vibrio splendidus |
title_fullStr |
Stress and Stress-Induced Neuroendocrine Changes Increase the Susceptibility of Juvenile Oysters ( Crassostrea gigas ) to Vibrio splendidus |
title_full_unstemmed |
Stress and Stress-Induced Neuroendocrine Changes Increase the Susceptibility of Juvenile Oysters ( Crassostrea gigas ) to Vibrio splendidus |
title_sort |
stress and stress-induced neuroendocrine changes increase the susceptibility of juvenile oysters ( crassostrea gigas ) to vibrio splendidus |
publisher |
American Society for Microbiology |
publishDate |
2001 |
url |
http://dx.doi.org/10.1128/aem.67.5.2304-2309.2001 https://journals.asm.org/doi/pdf/10.1128/AEM.67.5.2304-2309.2001 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Applied and Environmental Microbiology volume 67, issue 5, page 2304-2309 ISSN 0099-2240 1098-5336 |
op_rights |
https://journals.asm.org/non-commercial-tdm-license |
op_doi |
https://doi.org/10.1128/aem.67.5.2304-2309.2001 |
container_title |
Applied and Environmental Microbiology |
container_volume |
67 |
container_issue |
5 |
container_start_page |
2304 |
op_container_end_page |
2309 |
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1802643509275000832 |