Physiological and Biochemical Analyses Shed Light on the Response of Sargassum vulgare to Ocean Acidification at Different Time Scales
Studies regarding macroalgal responses to ocean acidification (OA) are mostly limited to short-term experiments in controlled conditions, which hamper the possibility to scale up the observations to long-term effects in the natural environment. To gain a broader perspective, we utilized volcanic CO2...
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ftpubmed:oai:pubmedcentral.nih.gov:5396147 2023-05-15T17:50:33+02:00 Physiological and Biochemical Analyses Shed Light on the Response of Sargassum vulgare to Ocean Acidification at Different Time Scales Kumar, Amit AbdElgawad, Hamada Castellano, Immacolata Lorenti, Maurizio Delledonne, Massimo Beemster, Gerrit T. S. Asard, Han Buia, Maria Cristina Palumbo, Anna 2017-04-19 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5396147/ https://doi.org/10.3389/fpls.2017.00570 en eng Frontiers Media S.A. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5396147/ http://dx.doi.org/10.3389/fpls.2017.00570 Copyright © 2017 Kumar, AbdElgawad, Castellano, Lorenti, Delledonne, Beemster, Asard, Buia and Palumbo. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. CC-BY Plant Science Text 2017 ftpubmed https://doi.org/10.3389/fpls.2017.00570 2017-05-07T00:22:55Z Studies regarding macroalgal responses to ocean acidification (OA) are mostly limited to short-term experiments in controlled conditions, which hamper the possibility to scale up the observations to long-term effects in the natural environment. To gain a broader perspective, we utilized volcanic CO2 vents as a “natural laboratory” to study OA effects on Sargassum vulgare at different time scales. We measured photosynthetic rates, oxidative stress levels, antioxidant contents, antioxidant enzyme activities, and activities of oxidative metabolic enzymes in S. vulgare growing at a natural acidified site (pH 6.7) compared to samples from a site with current pH (pH 8.2), used as a control one. These variables were also tested in plants transplanted from the control to the acidified site and vice-versa. After short-term exposure, photosynthetic rates and energy metabolism were increased in S. vulgare together with oxidative damage. However, in natural populations under long-term conditions photosynthetic rates were similar, the activity of oxidative metabolic enzymes was maintained, and no sign of oxidative damages was observed. The differences in the response of the macroalga indicate that the natural population at the acidified site is adapted to live at the lowered pH. The results suggest that this macroalga can adopt biochemical and physiological strategies to grow in future acidified oceans. Text Ocean acidification PubMed Central (PMC) Frontiers in Plant Science 8 |
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Plant Science Kumar, Amit AbdElgawad, Hamada Castellano, Immacolata Lorenti, Maurizio Delledonne, Massimo Beemster, Gerrit T. S. Asard, Han Buia, Maria Cristina Palumbo, Anna Physiological and Biochemical Analyses Shed Light on the Response of Sargassum vulgare to Ocean Acidification at Different Time Scales |
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Plant Science |
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Studies regarding macroalgal responses to ocean acidification (OA) are mostly limited to short-term experiments in controlled conditions, which hamper the possibility to scale up the observations to long-term effects in the natural environment. To gain a broader perspective, we utilized volcanic CO2 vents as a “natural laboratory” to study OA effects on Sargassum vulgare at different time scales. We measured photosynthetic rates, oxidative stress levels, antioxidant contents, antioxidant enzyme activities, and activities of oxidative metabolic enzymes in S. vulgare growing at a natural acidified site (pH 6.7) compared to samples from a site with current pH (pH 8.2), used as a control one. These variables were also tested in plants transplanted from the control to the acidified site and vice-versa. After short-term exposure, photosynthetic rates and energy metabolism were increased in S. vulgare together with oxidative damage. However, in natural populations under long-term conditions photosynthetic rates were similar, the activity of oxidative metabolic enzymes was maintained, and no sign of oxidative damages was observed. The differences in the response of the macroalga indicate that the natural population at the acidified site is adapted to live at the lowered pH. The results suggest that this macroalga can adopt biochemical and physiological strategies to grow in future acidified oceans. |
format |
Text |
author |
Kumar, Amit AbdElgawad, Hamada Castellano, Immacolata Lorenti, Maurizio Delledonne, Massimo Beemster, Gerrit T. S. Asard, Han Buia, Maria Cristina Palumbo, Anna |
author_facet |
Kumar, Amit AbdElgawad, Hamada Castellano, Immacolata Lorenti, Maurizio Delledonne, Massimo Beemster, Gerrit T. S. Asard, Han Buia, Maria Cristina Palumbo, Anna |
author_sort |
Kumar, Amit |
title |
Physiological and Biochemical Analyses Shed Light on the Response of Sargassum vulgare to Ocean Acidification at Different Time Scales |
title_short |
Physiological and Biochemical Analyses Shed Light on the Response of Sargassum vulgare to Ocean Acidification at Different Time Scales |
title_full |
Physiological and Biochemical Analyses Shed Light on the Response of Sargassum vulgare to Ocean Acidification at Different Time Scales |
title_fullStr |
Physiological and Biochemical Analyses Shed Light on the Response of Sargassum vulgare to Ocean Acidification at Different Time Scales |
title_full_unstemmed |
Physiological and Biochemical Analyses Shed Light on the Response of Sargassum vulgare to Ocean Acidification at Different Time Scales |
title_sort |
physiological and biochemical analyses shed light on the response of sargassum vulgare to ocean acidification at different time scales |
publisher |
Frontiers Media S.A. |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5396147/ https://doi.org/10.3389/fpls.2017.00570 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5396147/ http://dx.doi.org/10.3389/fpls.2017.00570 |
op_rights |
Copyright © 2017 Kumar, AbdElgawad, Castellano, Lorenti, Delledonne, Beemster, Asard, Buia and Palumbo. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
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CC-BY |
op_doi |
https://doi.org/10.3389/fpls.2017.00570 |
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Frontiers in Plant Science |
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8 |
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1766157362024939520 |