Oxidative balance in macroalgae from Antarctic waters. Possible role of Fe
The hypothesis of this work was that exposure to diverse abiotic factors in two sites with different sediment and iron input (Peñón de Pesca: low impact; Island D: high impact, both areas in Potter Cove, King George Island, Antarctica) affects the physiological and oxidative profile of Gigartina sko...
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ftconicet:oai:ri.conicet.gov.ar:11336/47652 2023-10-09T21:45:17+02:00 Oxidative balance in macroalgae from Antarctic waters. Possible role of Fe González, Paula Mariela Deregibus, Dolores Malanga, Gabriela Fabiana Campana, Gabriela Laura Zacher, Katharina Quartino, Maria Liliana Puntarulo, Susana Ángela application/pdf http://hdl.handle.net/11336/47652 eng eng Elsevier Science info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jembe.2016.10.018 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022098116302003 http://hdl.handle.net/11336/47652 González, Paula Mariela; Deregibus, Dolores; Malanga, Gabriela Fabiana; Campana, Gabriela Laura; Zacher, Katharina; et al.; Oxidative balance in macroalgae from Antarctic waters. Possible role of Fe; Elsevier Science; Journal of Experimental Marine Biology and Ecology; 486; 1-2017; 379-386 0022-0981 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Antarctica Antioxidants Fe Lipid Radicals Macroalgae Oxidative stress https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1016/j.jembe.2016.10.018 2023-09-24T20:29:59Z The hypothesis of this work was that exposure to diverse abiotic factors in two sites with different sediment and iron input (Peñón de Pesca: low impact; Island D: high impact, both areas in Potter Cove, King George Island, Antarctica) affects the physiological and oxidative profile of Gigartina skottsbergii and Himantothallus grandifolius. Daily metabolic carbon balance was significantly lower in both macroalgae from Island D compared to Peñón de Pesca. Lipid radical (LR) content was significantly higher in G. skottsbergii collected from Island D compared to Peñón de Pesca. In contrast, H. grandifolius showed significantly lower values in Island D compared to Peñón de Pesca. The β-carotene (β-C) content was significantly lower in G. skottsbergii from Island D compared to Peñón de Pesca, and the ratio LR/β-C showed a 6-fold increase in Island D samples compared to Peñón de Pesca. On the other hand, β-C content in H. grandifolius showed no significant differences between both areas. The LR/β-C content ratio in this alga was significantly lower (26%) in Island D as compared to Peñón de Pesca. Total iron content was significantly higher in both macroalgae from Island D compared to samples from Peñón de Pesca. Results with G. skottsbergii suggested changes in the oxidative cellular balance, probably related to the higher environmental iron in Island D as compared to Peñón de Pesca. The species H. grandifolius seems to be better adapted to the environmental conditions especially through a higher antioxidant capacity to cope with oxidative stress. Fil: González, Paula Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad Medicina. Instituto de Bioquímica y Medicina Molecular; Argentina Fil: Deregibus, Dolores. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Malanga, Gabriela ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino King George Island CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic King George Island Potter Cove Argentino Argentina Dolores ENVELOPE(-58.433,-58.433,-62.233,-62.233) Island D ENVELOPE(-115.753,-115.753,60.850,60.850) Journal of Experimental Marine Biology and Ecology 486 379 386 |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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language |
English |
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Antarctica Antioxidants Fe Lipid Radicals Macroalgae Oxidative stress https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
Antarctica Antioxidants Fe Lipid Radicals Macroalgae Oxidative stress https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 González, Paula Mariela Deregibus, Dolores Malanga, Gabriela Fabiana Campana, Gabriela Laura Zacher, Katharina Quartino, Maria Liliana Puntarulo, Susana Ángela Oxidative balance in macroalgae from Antarctic waters. Possible role of Fe |
topic_facet |
Antarctica Antioxidants Fe Lipid Radicals Macroalgae Oxidative stress https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
The hypothesis of this work was that exposure to diverse abiotic factors in two sites with different sediment and iron input (Peñón de Pesca: low impact; Island D: high impact, both areas in Potter Cove, King George Island, Antarctica) affects the physiological and oxidative profile of Gigartina skottsbergii and Himantothallus grandifolius. Daily metabolic carbon balance was significantly lower in both macroalgae from Island D compared to Peñón de Pesca. Lipid radical (LR) content was significantly higher in G. skottsbergii collected from Island D compared to Peñón de Pesca. In contrast, H. grandifolius showed significantly lower values in Island D compared to Peñón de Pesca. The β-carotene (β-C) content was significantly lower in G. skottsbergii from Island D compared to Peñón de Pesca, and the ratio LR/β-C showed a 6-fold increase in Island D samples compared to Peñón de Pesca. On the other hand, β-C content in H. grandifolius showed no significant differences between both areas. The LR/β-C content ratio in this alga was significantly lower (26%) in Island D as compared to Peñón de Pesca. Total iron content was significantly higher in both macroalgae from Island D compared to samples from Peñón de Pesca. Results with G. skottsbergii suggested changes in the oxidative cellular balance, probably related to the higher environmental iron in Island D as compared to Peñón de Pesca. The species H. grandifolius seems to be better adapted to the environmental conditions especially through a higher antioxidant capacity to cope with oxidative stress. Fil: González, Paula Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad Medicina. Instituto de Bioquímica y Medicina Molecular; Argentina Fil: Deregibus, Dolores. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Malanga, Gabriela ... |
format |
Article in Journal/Newspaper |
author |
González, Paula Mariela Deregibus, Dolores Malanga, Gabriela Fabiana Campana, Gabriela Laura Zacher, Katharina Quartino, Maria Liliana Puntarulo, Susana Ángela |
author_facet |
González, Paula Mariela Deregibus, Dolores Malanga, Gabriela Fabiana Campana, Gabriela Laura Zacher, Katharina Quartino, Maria Liliana Puntarulo, Susana Ángela |
author_sort |
González, Paula Mariela |
title |
Oxidative balance in macroalgae from Antarctic waters. Possible role of Fe |
title_short |
Oxidative balance in macroalgae from Antarctic waters. Possible role of Fe |
title_full |
Oxidative balance in macroalgae from Antarctic waters. Possible role of Fe |
title_fullStr |
Oxidative balance in macroalgae from Antarctic waters. Possible role of Fe |
title_full_unstemmed |
Oxidative balance in macroalgae from Antarctic waters. Possible role of Fe |
title_sort |
oxidative balance in macroalgae from antarctic waters. possible role of fe |
publisher |
Elsevier Science |
url |
http://hdl.handle.net/11336/47652 |
long_lat |
ENVELOPE(-58.433,-58.433,-62.233,-62.233) ENVELOPE(-115.753,-115.753,60.850,60.850) |
geographic |
Antarctic King George Island Potter Cove Argentino Argentina Dolores Island D |
geographic_facet |
Antarctic King George Island Potter Cove Argentino Argentina Dolores Island D |
genre |
Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino King George Island |
genre_facet |
Antarc* Antarctic Antarctica Dirección Nacional del Antártico Instituto Antártico Argentino King George Island |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jembe.2016.10.018 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022098116302003 http://hdl.handle.net/11336/47652 González, Paula Mariela; Deregibus, Dolores; Malanga, Gabriela Fabiana; Campana, Gabriela Laura; Zacher, Katharina; et al.; Oxidative balance in macroalgae from Antarctic waters. Possible role of Fe; Elsevier Science; Journal of Experimental Marine Biology and Ecology; 486; 1-2017; 379-386 0022-0981 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.jembe.2016.10.018 |
container_title |
Journal of Experimental Marine Biology and Ecology |
container_volume |
486 |
container_start_page |
379 |
op_container_end_page |
386 |
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1779317350938443776 |