Baseline defense system of commercial king crabs Lithodes santolla from the Beagle Channel
Environmental and physiological variations influence the steady-state concentration of free oxygen radicals in cells. Because of the seasonal life cycle of Lithodes santolla in the Beagle Channel, a baseline study of the antioxi- dant physiological variations along the seasons is necessary for a bet...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2014 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/5444 |
| Acceso en línea: | http://hdl.handle.net/11336/5444 |
| Access Level: | acceso abierto |
| Palabra clave: | Antioxidant Biomarker Decapod Reactive Oxygen Species Seasonal Sub-Antarctic https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| Sumario: | Environmental and physiological variations influence the steady-state concentration of free oxygen radicals in cells. Because of the seasonal life cycle of Lithodes santolla in the Beagle Channel, a baseline study of the antioxi- dant physiological variations along the seasons is necessary for a better understanding of its ecophysiology. The aimof this study was to evaluate the seasonal variations in gills, hemolymph,muscle and hepatopancreas of the: i) enzymatic activities of superoxide dismutase, catalase, glutathione peroxidase and glutathione transferase; ii) ascorbic acid and total glutathione; iii) lipid peroxidation and protein oxidation; iv) glucose, proteins and pH. Seasonality found in the antioxidant defense system of L. santolla from the Beagle Channel acts in a collabo- rativeway during themost relevant life cycle phases (reproduction andmolting), avoiding a long termoxidative stress. The antioxidant systemalso shows changes in the enzymatic activities likely caused by the environmental factors, such as low temperatures during winter and spring seasons |
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