Influence of CO_2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta)
International audience Coccolithophores, a key phytoplankton group, are one of the most studied organisms regarding their physiological response to ocean acidification/carbonation. The biogenic production of calcareous coccoliths has made coccolithophores a promising group for paleoceanographic rese...
Published in: | Biogeosciences |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2012
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Online Access: | https://hal.inria.fr/hal-00848437 https://hal.inria.fr/hal-00848437/document https://hal.inria.fr/hal-00848437/file/bg-9-4155-2012.pdf https://doi.org/10.5194/bg-9-4155-2012 |
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[SPI]Engineering Sciences [physics] [MATH.MATH-GM]Mathematics [math]/General Mathematics [math.GM] [INFO.INFO-AU]Computer Science [cs]/Automatic Control Engineering [SDV]Life Sciences [q-bio] Müller, Marius N. Beaufort, Luc Bernard, Olivier Pedrotti, Maria-Luiza Talec, Amélie Sciandra, Antoine Influence of CO_2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta) |
topic_facet |
[SPI]Engineering Sciences [physics] [MATH.MATH-GM]Mathematics [math]/General Mathematics [math.GM] [INFO.INFO-AU]Computer Science [cs]/Automatic Control Engineering [SDV]Life Sciences [q-bio] |
description |
International audience Coccolithophores, a key phytoplankton group, are one of the most studied organisms regarding their physiological response to ocean acidification/carbonation. The biogenic production of calcareous coccoliths has made coccolithophores a promising group for paleoceanographic research aiming to reconstruct past environmental conditions. Recently, geochemical and morphological analyses of fossil coccoliths have gained increased interest in regard to changes in seawater carbonate chemistry. The cosmopolitan coccolithophore Emiliania huxleyi (Lohm.) Hay and Mohler was cultured over a range of pCO2 levels in controlled laboratory experiments under nutrient replete and nitrogen limited conditions. Measurements of photosynthesis and calcification revealed, as previously published, an increase in particulate organic carbon production and a moderate decrease in calcification from ambient to elevated pCO2. The enhancement in particulate organic carbon production was accompanied by an increase in cell diameter. Changes in coccolith volume were best correlated with the coccosphere/cell diameter and no significant correlation was found between the coccolith volume and the particulate inorganic carbon production. The conducted experiments revealed that the coccolith volume of E. huxleyi is variable with aquatic CO2 concentration but its sensitivity is rather small in comparison with its sensitivity to nitrogen limitation. Comparing coccolith morphological and geometrical parameters like volume, mass and size to physiological parameters under controlled laboratory conditions is an important step to understand variations in fossil coccolith geometry. |
author2 |
Institute for Marine and Antarctic Studies Horbat (IMAS) University of Tasmania Hobart, Australia (UTAS) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA) Biological control of artificial ecosystems (BIOCORE) Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Inria Sophia Antipolis - Méditerranée (CRISAM) Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de la Recherche Agronomique (INRA) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) The publication of this article is financed by CNRS-INSU. |
format |
Article in Journal/Newspaper |
author |
Müller, Marius N. Beaufort, Luc Bernard, Olivier Pedrotti, Maria-Luiza Talec, Amélie Sciandra, Antoine |
author_facet |
Müller, Marius N. Beaufort, Luc Bernard, Olivier Pedrotti, Maria-Luiza Talec, Amélie Sciandra, Antoine |
author_sort |
Müller, Marius N. |
title |
Influence of CO_2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta) |
title_short |
Influence of CO_2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta) |
title_full |
Influence of CO_2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta) |
title_fullStr |
Influence of CO_2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta) |
title_full_unstemmed |
Influence of CO_2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta) |
title_sort |
influence of co_2 and nitrogen limitation on the coccolith volume of emiliania huxleyi (haptophyta) |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.inria.fr/hal-00848437 https://hal.inria.fr/hal-00848437/document https://hal.inria.fr/hal-00848437/file/bg-9-4155-2012.pdf https://doi.org/10.5194/bg-9-4155-2012 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.inria.fr/hal-00848437 Biogeosciences, European Geosciences Union, 2012, 9 (4), pp.4155--4167. ⟨10.5194/bg-9-4155-2012⟩ |
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http://creativecommons.org/licenses/by-nd/ info:eu-repo/semantics/OpenAccess |
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CC-BY-ND |
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https://doi.org/10.5194/bg-9-4155-2012 |
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ftccsdartic:oai:HAL:hal-00848437v1 2023-05-15T17:51:36+02:00 Influence of CO_2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta) Müller, Marius N. Beaufort, Luc Bernard, Olivier Pedrotti, Maria-Luiza Talec, Amélie Sciandra, Antoine Institute for Marine and Antarctic Studies Horbat (IMAS) University of Tasmania Hobart, Australia (UTAS) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA) Biological control of artificial ecosystems (BIOCORE) Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Inria Sophia Antipolis - Méditerranée (CRISAM) Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de la Recherche Agronomique (INRA) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) The publication of this article is financed by CNRS-INSU. 2012 https://hal.inria.fr/hal-00848437 https://hal.inria.fr/hal-00848437/document https://hal.inria.fr/hal-00848437/file/bg-9-4155-2012.pdf https://doi.org/10.5194/bg-9-4155-2012 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-9-4155-2012 hal-00848437 https://hal.inria.fr/hal-00848437 https://hal.inria.fr/hal-00848437/document https://hal.inria.fr/hal-00848437/file/bg-9-4155-2012.pdf doi:10.5194/bg-9-4155-2012 http://creativecommons.org/licenses/by-nd/ info:eu-repo/semantics/OpenAccess CC-BY-ND ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.inria.fr/hal-00848437 Biogeosciences, European Geosciences Union, 2012, 9 (4), pp.4155--4167. ⟨10.5194/bg-9-4155-2012⟩ [SPI]Engineering Sciences [physics] [MATH.MATH-GM]Mathematics [math]/General Mathematics [math.GM] [INFO.INFO-AU]Computer Science [cs]/Automatic Control Engineering [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2012 ftccsdartic https://doi.org/10.5194/bg-9-4155-2012 2021-11-21T00:40:26Z International audience Coccolithophores, a key phytoplankton group, are one of the most studied organisms regarding their physiological response to ocean acidification/carbonation. The biogenic production of calcareous coccoliths has made coccolithophores a promising group for paleoceanographic research aiming to reconstruct past environmental conditions. Recently, geochemical and morphological analyses of fossil coccoliths have gained increased interest in regard to changes in seawater carbonate chemistry. The cosmopolitan coccolithophore Emiliania huxleyi (Lohm.) Hay and Mohler was cultured over a range of pCO2 levels in controlled laboratory experiments under nutrient replete and nitrogen limited conditions. Measurements of photosynthesis and calcification revealed, as previously published, an increase in particulate organic carbon production and a moderate decrease in calcification from ambient to elevated pCO2. The enhancement in particulate organic carbon production was accompanied by an increase in cell diameter. Changes in coccolith volume were best correlated with the coccosphere/cell diameter and no significant correlation was found between the coccolith volume and the particulate inorganic carbon production. The conducted experiments revealed that the coccolith volume of E. huxleyi is variable with aquatic CO2 concentration but its sensitivity is rather small in comparison with its sensitivity to nitrogen limitation. Comparing coccolith morphological and geometrical parameters like volume, mass and size to physiological parameters under controlled laboratory conditions is an important step to understand variations in fossil coccolith geometry. Article in Journal/Newspaper Ocean acidification Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Biogeosciences 9 10 4155 4167 |