Data from: Long-term acclimation to elevated pCO2 alters carbon metabolism and reduces growth in the Antarctic diatom Nitzschia lecointei
Increasing atmospheric CO2 levels are driving changes in the seawater carbonate system, resulting in higher pCO2 and reduced pH (ocean acidification). Many studies on marine organisms have focused on short-term physiological responses to increased pCO2, and few on slow-growing polar organisms with a...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:90612 2023-07-02T03:29:46+02:00 Data from: Long-term acclimation to elevated pCO2 alters carbon metabolism and reduces growth in the Antarctic diatom Nitzschia lecointei Torstensson, Anders Hedblom, Mikael Mattsdotter Björk, My Chierici, Melissa Wulff, Angela 2015-08-18T16:27:21.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-rn-7oj9 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:90612 unknown doi:10.5061/dryad.h838q/1 doi:10.5061/dryad.h838q/2 doi:10.5061/dryad.h838q/3 doi:10.5061/dryad.h838q/4 doi:10.5061/dryad.h838q/5 doi:10.5061/dryad.h838q/6 doi:10.5061/dryad.h838q/7 doi:10.1098/rspb.2015.1513 PMID:26354939 http://nbn-resolving.org/urn:nbn:nl:ui:13-rn-7oj9 doi:10.5061/dryad.h838q https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:90612 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2015 ftdans https://doi.org/10.5061/dryad.h838q/110.5061/dryad.h838q/210.5061/dryad.h838q/310.5061/dryad.h838q/410.5061/dryad.h838q/510.5061/dryad.h838q/610.5061/dryad.h838q/710.1098/rspb.2015.151310.5061/dryad.h838q 2023-06-13T13:00:53Z Increasing atmospheric CO2 levels are driving changes in the seawater carbonate system, resulting in higher pCO2 and reduced pH (ocean acidification). Many studies on marine organisms have focused on short-term physiological responses to increased pCO2, and few on slow-growing polar organisms with a relative low adaptation potential. In order to recognize the consequences of climate change in biological systems, acclimation and adaptation to new environments are crucial to address. In this study, physiological responses to long-term acclimation (194 days, approx. 60 asexual generations) of three pCO2 levels (280, 390 and 960 µatm) were investigated in the psychrophilic sea ice diatom Nitzschia lecointei. After 147 days, a small reduction in growth was detected at 960 µatm pCO2. Previous short-term experiments have failed to detect altered growth in N. lecointei at high pCO2, which illustrates the importance of experimental duration in studies of climate change. In addition, carbon metabolism was significantly affected by the long-term treatments, resulting in higher cellular release of dissolved organic carbon (DOC). In turn, the release of labile organic carbon stimulated bacterial productivity in this system. We conclude that long-term acclimation to ocean acidification is important for N. lecointei and that carbon overconsumption and DOC exudation may increase in a high-CO2 world. Other/Unknown Material Antarc* Antarctic Ocean acidification Sea ice Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Antarctic The Antarctic |
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Open Polar |
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Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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unknown |
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Life sciences medicine and health care |
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Life sciences medicine and health care Torstensson, Anders Hedblom, Mikael Mattsdotter Björk, My Chierici, Melissa Wulff, Angela Data from: Long-term acclimation to elevated pCO2 alters carbon metabolism and reduces growth in the Antarctic diatom Nitzschia lecointei |
topic_facet |
Life sciences medicine and health care |
description |
Increasing atmospheric CO2 levels are driving changes in the seawater carbonate system, resulting in higher pCO2 and reduced pH (ocean acidification). Many studies on marine organisms have focused on short-term physiological responses to increased pCO2, and few on slow-growing polar organisms with a relative low adaptation potential. In order to recognize the consequences of climate change in biological systems, acclimation and adaptation to new environments are crucial to address. In this study, physiological responses to long-term acclimation (194 days, approx. 60 asexual generations) of three pCO2 levels (280, 390 and 960 µatm) were investigated in the psychrophilic sea ice diatom Nitzschia lecointei. After 147 days, a small reduction in growth was detected at 960 µatm pCO2. Previous short-term experiments have failed to detect altered growth in N. lecointei at high pCO2, which illustrates the importance of experimental duration in studies of climate change. In addition, carbon metabolism was significantly affected by the long-term treatments, resulting in higher cellular release of dissolved organic carbon (DOC). In turn, the release of labile organic carbon stimulated bacterial productivity in this system. We conclude that long-term acclimation to ocean acidification is important for N. lecointei and that carbon overconsumption and DOC exudation may increase in a high-CO2 world. |
author |
Torstensson, Anders Hedblom, Mikael Mattsdotter Björk, My Chierici, Melissa Wulff, Angela |
author_facet |
Torstensson, Anders Hedblom, Mikael Mattsdotter Björk, My Chierici, Melissa Wulff, Angela |
author_sort |
Torstensson, Anders |
title |
Data from: Long-term acclimation to elevated pCO2 alters carbon metabolism and reduces growth in the Antarctic diatom Nitzschia lecointei |
title_short |
Data from: Long-term acclimation to elevated pCO2 alters carbon metabolism and reduces growth in the Antarctic diatom Nitzschia lecointei |
title_full |
Data from: Long-term acclimation to elevated pCO2 alters carbon metabolism and reduces growth in the Antarctic diatom Nitzschia lecointei |
title_fullStr |
Data from: Long-term acclimation to elevated pCO2 alters carbon metabolism and reduces growth in the Antarctic diatom Nitzschia lecointei |
title_full_unstemmed |
Data from: Long-term acclimation to elevated pCO2 alters carbon metabolism and reduces growth in the Antarctic diatom Nitzschia lecointei |
title_sort |
data from: long-term acclimation to elevated pco2 alters carbon metabolism and reduces growth in the antarctic diatom nitzschia lecointei |
publishDate |
2015 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-rn-7oj9 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:90612 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Ocean acidification Sea ice |
genre_facet |
Antarc* Antarctic Ocean acidification Sea ice |
op_relation |
doi:10.5061/dryad.h838q/1 doi:10.5061/dryad.h838q/2 doi:10.5061/dryad.h838q/3 doi:10.5061/dryad.h838q/4 doi:10.5061/dryad.h838q/5 doi:10.5061/dryad.h838q/6 doi:10.5061/dryad.h838q/7 doi:10.1098/rspb.2015.1513 PMID:26354939 http://nbn-resolving.org/urn:nbn:nl:ui:13-rn-7oj9 doi:10.5061/dryad.h838q https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:90612 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.h838q/110.5061/dryad.h838q/210.5061/dryad.h838q/310.5061/dryad.h838q/410.5061/dryad.h838q/510.5061/dryad.h838q/610.5061/dryad.h838q/710.1098/rspb.2015.151310.5061/dryad.h838q |
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1770272526828568576 |