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High CO 2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi ‐dominated phytoplankton community
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Mausz, Michaela A., Segovia, María, Larsen, Aud, Berger, Stella A., Egge, Jorun K. and Pohnert, Georg (2020) High CO 2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi ‐dominated phytoplankton community. Environmental Microbiology, 22 (9). pp. 3863-3882. doi:10.1111/1462-2920.15160 ISSN 1462-2912.
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Environmental Microbiology - 2020 - Mausz - High CO2 concentration and iron availability determine the metabolic inventory.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons: Attribution-Noncommercial 4.0. Download (1758Kb) | Preview |
Official URL: https://doi.org/10.1111/1462-2920.15160
Abstract
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.
Item Type: | Journal Article | ||||||||||||||||||
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Subjects: | Q Science > QH Natural history Q Science > QH Natural history > QH301 Biology T Technology > TD Environmental technology. Sanitary engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||||||||||||||
SWORD Depositor: | Library Publications Router | ||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Marine biology, Marine ecology, Marine plankton, Ocean acidification | ||||||||||||||||||
Journal or Publication Title: | Environmental Microbiology | ||||||||||||||||||
Publisher: | Blackwell | ||||||||||||||||||
ISSN: | 1462-2912 | ||||||||||||||||||
Official Date: | September 2020 | ||||||||||||||||||
Dates: |
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Volume: | 22 | ||||||||||||||||||
Number: | 9 | ||||||||||||||||||
Page Range: | pp. 3863-3882 | ||||||||||||||||||
DOI: | 10.1111/1462-2920.15160 | ||||||||||||||||||
Status: | Peer Reviewed | ||||||||||||||||||
Publication Status: | Published | ||||||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||||||||
Date of first compliant deposit: | 1 June 2023 | ||||||||||||||||||
Date of first compliant Open Access: | 1 June 2023 | ||||||||||||||||||
RIOXX Funder/Project Grant: |
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