Temporal Changes in Physiological Responses of Bay Scallop: Performance of Antioxidant Mechanism in <i>Argopecten irradians</i> in Response to Sudden Changes in Habitat Salinity

Changes to habitat salinity may induce oxidative stress in aquatic organisms. The effect of salinity on the antioxidant function of bay scallops was investigated at 55, 70, 85 and 120% of seawater salinity (SW), with 100% SW as the control. The scallops were sampled 0, 6, 12, 24, 48 and 72 h after t...

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Autores principales:	Jin Ah Song, Cheol Young Choi
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	bay scallop <i>Argopecten irradians</i> antioxidant mechanism reactive oxygen species salinity change digestive diverticula Therapeutics. Pharmacology RM1-950
Acceso en línea:	https://doaj.org/article/9a00e954fd9c41c1b70ecfe6bc4f9ec6
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spelling	oai:doaj.org-article:9a00e954fd9c41c1b70ecfe6bc4f9ec62021-11-25T16:25:47ZTemporal Changes in Physiological Responses of Bay Scallop: Performance of Antioxidant Mechanism in <i>Argopecten irradians</i> in Response to Sudden Changes in Habitat Salinity10.3390/antiox101116732076-3921https://doaj.org/article/9a00e954fd9c41c1b70ecfe6bc4f9ec62021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3921/10/11/1673https://doaj.org/toc/2076-3921Changes to habitat salinity may induce oxidative stress in aquatic organisms. The effect of salinity on the antioxidant function of bay scallops was investigated at 55, 70, 85 and 120% of seawater salinity (SW), with 100% SW as the control. The scallops were sampled 0, 6, 12, 24, 48 and 72 h after the salinity change to measure superoxide dismutase (SOD), catalase (CAT), hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), and lipid peroxidation (LPO) levels, as well as apoptosis in the digestive diverticula and/or hemolymph. The SOD immunohistochemistry and apoptotic response were assessed at 55% and 120% SW at 12 h. Antioxidant expressions at 55% and 70% SW peaked at 24 h or 48 h, and then decreased. At 120% SW, they increased with exposure time. The H<sub>2</sub>O<sub>2</sub> and LPO levels at each SW increased significantly with time. A comet assay also revealed that changes in salinity increased the rate of nuclear DNA damage in all the salinity groups. Thus, variations in salinity result in significant physiological responses in bay scallops. A change in habitat salinity of 15% or more produces oxidative stress that cannot be resolved by the body’s antioxidant mechanism, suggesting that excessive generation of reactive oxygen species can lead to cell death.Jin Ah SongCheol Young ChoiMDPI AGarticlebay scallop<i>Argopecten irradians</i>antioxidant mechanismreactive oxygen speciessalinity changedigestive diverticulaTherapeutics. PharmacologyRM1-950ENAntioxidants, Vol 10, Iss 1673, p 1673 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bay scallop <i>Argopecten irradians</i> antioxidant mechanism reactive oxygen species salinity change digestive diverticula Therapeutics. Pharmacology RM1-950
spellingShingle	bay scallop <i>Argopecten irradians</i> antioxidant mechanism reactive oxygen species salinity change digestive diverticula Therapeutics. Pharmacology RM1-950 Jin Ah Song Cheol Young Choi Temporal Changes in Physiological Responses of Bay Scallop: Performance of Antioxidant Mechanism in <i>Argopecten irradians</i> in Response to Sudden Changes in Habitat Salinity
description	Changes to habitat salinity may induce oxidative stress in aquatic organisms. The effect of salinity on the antioxidant function of bay scallops was investigated at 55, 70, 85 and 120% of seawater salinity (SW), with 100% SW as the control. The scallops were sampled 0, 6, 12, 24, 48 and 72 h after the salinity change to measure superoxide dismutase (SOD), catalase (CAT), hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), and lipid peroxidation (LPO) levels, as well as apoptosis in the digestive diverticula and/or hemolymph. The SOD immunohistochemistry and apoptotic response were assessed at 55% and 120% SW at 12 h. Antioxidant expressions at 55% and 70% SW peaked at 24 h or 48 h, and then decreased. At 120% SW, they increased with exposure time. The H<sub>2</sub>O<sub>2</sub> and LPO levels at each SW increased significantly with time. A comet assay also revealed that changes in salinity increased the rate of nuclear DNA damage in all the salinity groups. Thus, variations in salinity result in significant physiological responses in bay scallops. A change in habitat salinity of 15% or more produces oxidative stress that cannot be resolved by the body’s antioxidant mechanism, suggesting that excessive generation of reactive oxygen species can lead to cell death.
format	article
author	Jin Ah Song Cheol Young Choi
author_facet	Jin Ah Song Cheol Young Choi
author_sort	Jin Ah Song
title	Temporal Changes in Physiological Responses of Bay Scallop: Performance of Antioxidant Mechanism in <i>Argopecten irradians</i> in Response to Sudden Changes in Habitat Salinity
title_short	Temporal Changes in Physiological Responses of Bay Scallop: Performance of Antioxidant Mechanism in <i>Argopecten irradians</i> in Response to Sudden Changes in Habitat Salinity
title_full	Temporal Changes in Physiological Responses of Bay Scallop: Performance of Antioxidant Mechanism in <i>Argopecten irradians</i> in Response to Sudden Changes in Habitat Salinity
title_fullStr	Temporal Changes in Physiological Responses of Bay Scallop: Performance of Antioxidant Mechanism in <i>Argopecten irradians</i> in Response to Sudden Changes in Habitat Salinity
title_full_unstemmed	Temporal Changes in Physiological Responses of Bay Scallop: Performance of Antioxidant Mechanism in <i>Argopecten irradians</i> in Response to Sudden Changes in Habitat Salinity
title_sort	temporal changes in physiological responses of bay scallop: performance of antioxidant mechanism in <i>argopecten irradians</i> in response to sudden changes in habitat salinity
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9a00e954fd9c41c1b70ecfe6bc4f9ec6
work_keys_str_mv	AT jinahsong temporalchangesinphysiologicalresponsesofbayscallopperformanceofantioxidantmechanisminiargopectenirradiansiinresponsetosuddenchangesinhabitatsalinity AT cheolyoungchoi temporalchangesinphysiologicalresponsesofbayscallopperformanceofantioxidantmechanisminiargopectenirradiansiinresponsetosuddenchangesinhabitatsalinity
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Temporal Changes in Physiological Responses of Bay Scallop: Performance of Antioxidant Mechanism in <i>Argopecten irradians</i> in Response to Sudden Changes in Habitat Salinity

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