High CO2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi-dominated phytoplankton community
Ocean acidification (OA), a consequence of anthropogenic carbon dioxide (CO2) emissions, strongly impacts marine ecosystems. OA also influences iron (Fe) solubility, affecting biogeochemical and ecological processes. We investigated the interactive effects of CO2 and Fe availability on the metabolom...
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Online Access: | https://hdl.handle.net/11250/2763125 https://doi.org/10.1111/1462-2920.15160 |
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ftunivbergen:oai:bora.uib.no:11250/2763125 2023-05-15T17:51:27+02:00 High CO2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi-dominated phytoplankton community Mausz, Michaela A. Segovia, María Larsen, Aud Berger, Stella Angela Egge, Jorun Karin Pohnert, Georg 2020 application/pdf https://hdl.handle.net/11250/2763125 https://doi.org/10.1111/1462-2920.15160 eng eng Wiley Norges forskningsråd: 225956/E10 EC/FP7/228224 EC/H2020/250254 urn:issn:1462-2912 https://hdl.handle.net/11250/2763125 https://doi.org/10.1111/1462-2920.15160 cristin:1836855 Environmental Microbiology. 2020, 22(9), 3863-3882 Navngivelse-Ikkekommersiell 4.0 Internasjonal http://creativecommons.org/licenses/by-nc/4.0/deed.no Copyright 2020 The Authors Environmental Microbiology 22 9 3863-3882 Journal article Peer reviewed 2020 ftunivbergen https://doi.org/10.1111/1462-2920.15160 2023-03-14T17:39:23Z Ocean acidification (OA), a consequence of anthropogenic carbon dioxide (CO2) emissions, strongly impacts marine ecosystems. OA also influences iron (Fe) solubility, affecting biogeochemical and ecological processes. We investigated the interactive effects of CO2 and Fe availability on the metabolome response of a natural phytoplankton community. Using mesocosms we exposed phytoplankton to ambient (390 μatm) or future CO2 levels predicted for the year 2100 (900 μatm), combined with ambient (4.5 nM) or high (12 nM) dissolved iron (dFe). By integrating over the whole phytoplankton community, we assigned functional changes based on altered metabolite concentrations. Our study revealed the complexity of phytoplankton metabolism. Metabolic profiles showed three stages in response to treatments and phytoplankton dynamics. Metabolome changes were related to the plankton group contributing respective metabolites, explaining bloom decline and community succession. CO2 and Fe affected metabolic profiles. Most saccharides, fatty acids, amino acids and many sterols significantly correlated with the high dFe treatment at ambient pCO2. High CO2 lowered the abundance of many metabolites irrespective of Fe. However, sugar alcohols accumulated, indicating potential stress. We demonstrate that not only altered species composition but also changes in the metabolic landscape affecting the plankton community may change as a consequence of future high-CO2 oceans. publishedVersion Article in Journal/Newspaper Ocean acidification University of Bergen: Bergen Open Research Archive (BORA-UiB) Environmental Microbiology 22 9 3863 3882 |
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Open Polar |
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University of Bergen: Bergen Open Research Archive (BORA-UiB) |
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ftunivbergen |
language |
English |
description |
Ocean acidification (OA), a consequence of anthropogenic carbon dioxide (CO2) emissions, strongly impacts marine ecosystems. OA also influences iron (Fe) solubility, affecting biogeochemical and ecological processes. We investigated the interactive effects of CO2 and Fe availability on the metabolome response of a natural phytoplankton community. Using mesocosms we exposed phytoplankton to ambient (390 μatm) or future CO2 levels predicted for the year 2100 (900 μatm), combined with ambient (4.5 nM) or high (12 nM) dissolved iron (dFe). By integrating over the whole phytoplankton community, we assigned functional changes based on altered metabolite concentrations. Our study revealed the complexity of phytoplankton metabolism. Metabolic profiles showed three stages in response to treatments and phytoplankton dynamics. Metabolome changes were related to the plankton group contributing respective metabolites, explaining bloom decline and community succession. CO2 and Fe affected metabolic profiles. Most saccharides, fatty acids, amino acids and many sterols significantly correlated with the high dFe treatment at ambient pCO2. High CO2 lowered the abundance of many metabolites irrespective of Fe. However, sugar alcohols accumulated, indicating potential stress. We demonstrate that not only altered species composition but also changes in the metabolic landscape affecting the plankton community may change as a consequence of future high-CO2 oceans. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Mausz, Michaela A. Segovia, María Larsen, Aud Berger, Stella Angela Egge, Jorun Karin Pohnert, Georg |
spellingShingle |
Mausz, Michaela A. Segovia, María Larsen, Aud Berger, Stella Angela Egge, Jorun Karin Pohnert, Georg High CO2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi-dominated phytoplankton community |
author_facet |
Mausz, Michaela A. Segovia, María Larsen, Aud Berger, Stella Angela Egge, Jorun Karin Pohnert, Georg |
author_sort |
Mausz, Michaela A. |
title |
High CO2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi-dominated phytoplankton community |
title_short |
High CO2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi-dominated phytoplankton community |
title_full |
High CO2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi-dominated phytoplankton community |
title_fullStr |
High CO2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi-dominated phytoplankton community |
title_full_unstemmed |
High CO2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi-dominated phytoplankton community |
title_sort |
high co2 concentration and iron availability determine the metabolic inventory in an emiliania huxleyi-dominated phytoplankton community |
publisher |
Wiley |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2763125 https://doi.org/10.1111/1462-2920.15160 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Environmental Microbiology 22 9 3863-3882 |
op_relation |
Norges forskningsråd: 225956/E10 EC/FP7/228224 EC/H2020/250254 urn:issn:1462-2912 https://hdl.handle.net/11250/2763125 https://doi.org/10.1111/1462-2920.15160 cristin:1836855 Environmental Microbiology. 2020, 22(9), 3863-3882 |
op_rights |
Navngivelse-Ikkekommersiell 4.0 Internasjonal http://creativecommons.org/licenses/by-nc/4.0/deed.no Copyright 2020 The Authors |
op_doi |
https://doi.org/10.1111/1462-2920.15160 |
container_title |
Environmental Microbiology |
container_volume |
22 |
container_issue |
9 |
container_start_page |
3863 |
op_container_end_page |
3882 |
_version_ |
1766158596593156096 |