Ocean acidification decreases the light-use efficiency in an Antarctic diatom under dynamic but not constant light
- There is increasing evidence that different light intensities strongly modulate the effects of ocean acidification (OA) on marine phytoplankton. The aim of the present study was to investigate interactive effects of OA and dynamic light, mimicking natural mixing regimes. - The Antarctic diatom Cha...
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2015
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Online Access: | https://epic.awi.de/id/eprint/37411/ https://epic.awi.de/id/eprint/37411/1/Hoppe_et_al_2015.pdf http://onlinelibrary.wiley.com/doi/10.1111/nph.13334/abstract https://hdl.handle.net/10013/epic.45075 https://hdl.handle.net/10013/epic.45075.d001 |
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ftawi:oai:epic.awi.de:37411 2024-09-15T17:43:50+00:00 Ocean acidification decreases the light-use efficiency in an Antarctic diatom under dynamic but not constant light Hoppe, Clara Holtz, Lena-Maria Trimborn, Scarlett Rost, Bjoern 2015-02-24 application/pdf https://epic.awi.de/id/eprint/37411/ https://epic.awi.de/id/eprint/37411/1/Hoppe_et_al_2015.pdf http://onlinelibrary.wiley.com/doi/10.1111/nph.13334/abstract https://hdl.handle.net/10013/epic.45075 https://hdl.handle.net/10013/epic.45075.d001 unknown WILEY-BLACKWELL PUBLISHING https://epic.awi.de/id/eprint/37411/1/Hoppe_et_al_2015.pdf https://hdl.handle.net/10013/epic.45075.d001 Hoppe, C. orcid:0000-0002-2509-0546 , Holtz, L. M. , Trimborn, S. orcid:0000-0003-1434-9927 and Rost, B. orcid:0000-0001-5452-5505 (2015) Ocean acidification decreases the light-use efficiency in an Antarctic diatom under dynamic but not constant light , New Phytologist . doi:10.1111/nph.13334 <https://doi.org/10.1111/nph.13334> , hdl:10013/epic.45075 info:eu-repo/semantics/openAccess EPIC3New Phytologist, WILEY-BLACKWELL PUBLISHING, ISSN: 0028-646X Article isiRev info:eu-repo/semantics/article 2015 ftawi https://doi.org/10.1111/nph.13334 2024-06-24T04:11:05Z - There is increasing evidence that different light intensities strongly modulate the effects of ocean acidification (OA) on marine phytoplankton. The aim of the present study was to investigate interactive effects of OA and dynamic light, mimicking natural mixing regimes. - The Antarctic diatom Chaetoceros debilis was grown under two pCO2 (390 and 1000 latm) and light conditions (constant and dynamic), the latter yielding the same integrated irradiance over the day. To characterize interactive effects between treatments, growth, elemental composition, primary production and photophysiology were investigated. - Dynamic light reduced growth and strongly altered the effects of OA on primary production, being unaffected by elevated pCO2 under constant light, yet significantly reduced under dynamic light. Interactive effects between OA and light were also observed for Chl production and particulate organic carbon quotas. - Response patterns can be explained by changes in the cellular energetic balance. While the energy transfer efficiency from photochemistry to biomass production (Φe,C) was not affected by OA under constant light, it was drastically reduced under dynamic light. Contrasting responses under different light conditions need to be considered when making predictions regarding a more stratified and acidified future ocean. Article in Journal/Newspaper Antarc* Antarctic Ocean acidification Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) New Phytologist 207 1 159 171 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
- There is increasing evidence that different light intensities strongly modulate the effects of ocean acidification (OA) on marine phytoplankton. The aim of the present study was to investigate interactive effects of OA and dynamic light, mimicking natural mixing regimes. - The Antarctic diatom Chaetoceros debilis was grown under two pCO2 (390 and 1000 latm) and light conditions (constant and dynamic), the latter yielding the same integrated irradiance over the day. To characterize interactive effects between treatments, growth, elemental composition, primary production and photophysiology were investigated. - Dynamic light reduced growth and strongly altered the effects of OA on primary production, being unaffected by elevated pCO2 under constant light, yet significantly reduced under dynamic light. Interactive effects between OA and light were also observed for Chl production and particulate organic carbon quotas. - Response patterns can be explained by changes in the cellular energetic balance. While the energy transfer efficiency from photochemistry to biomass production (Φe,C) was not affected by OA under constant light, it was drastically reduced under dynamic light. Contrasting responses under different light conditions need to be considered when making predictions regarding a more stratified and acidified future ocean. |
format |
Article in Journal/Newspaper |
author |
Hoppe, Clara Holtz, Lena-Maria Trimborn, Scarlett Rost, Bjoern |
spellingShingle |
Hoppe, Clara Holtz, Lena-Maria Trimborn, Scarlett Rost, Bjoern Ocean acidification decreases the light-use efficiency in an Antarctic diatom under dynamic but not constant light |
author_facet |
Hoppe, Clara Holtz, Lena-Maria Trimborn, Scarlett Rost, Bjoern |
author_sort |
Hoppe, Clara |
title |
Ocean acidification decreases the light-use efficiency in an Antarctic diatom under dynamic but not constant light |
title_short |
Ocean acidification decreases the light-use efficiency in an Antarctic diatom under dynamic but not constant light |
title_full |
Ocean acidification decreases the light-use efficiency in an Antarctic diatom under dynamic but not constant light |
title_fullStr |
Ocean acidification decreases the light-use efficiency in an Antarctic diatom under dynamic but not constant light |
title_full_unstemmed |
Ocean acidification decreases the light-use efficiency in an Antarctic diatom under dynamic but not constant light |
title_sort |
ocean acidification decreases the light-use efficiency in an antarctic diatom under dynamic but not constant light |
publisher |
WILEY-BLACKWELL PUBLISHING |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/37411/ https://epic.awi.de/id/eprint/37411/1/Hoppe_et_al_2015.pdf http://onlinelibrary.wiley.com/doi/10.1111/nph.13334/abstract https://hdl.handle.net/10013/epic.45075 https://hdl.handle.net/10013/epic.45075.d001 |
genre |
Antarc* Antarctic Ocean acidification |
genre_facet |
Antarc* Antarctic Ocean acidification |
op_source |
EPIC3New Phytologist, WILEY-BLACKWELL PUBLISHING, ISSN: 0028-646X |
op_relation |
https://epic.awi.de/id/eprint/37411/1/Hoppe_et_al_2015.pdf https://hdl.handle.net/10013/epic.45075.d001 Hoppe, C. orcid:0000-0002-2509-0546 , Holtz, L. M. , Trimborn, S. orcid:0000-0003-1434-9927 and Rost, B. orcid:0000-0001-5452-5505 (2015) Ocean acidification decreases the light-use efficiency in an Antarctic diatom under dynamic but not constant light , New Phytologist . doi:10.1111/nph.13334 <https://doi.org/10.1111/nph.13334> , hdl:10013/epic.45075 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/nph.13334 |
container_title |
New Phytologist |
container_volume |
207 |
container_issue |
1 |
container_start_page |
159 |
op_container_end_page |
171 |
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1810491029923561472 |