Responses of macroalgae to CO2 enrichment cannot be inferred solely from their inorganic carbon uptake strategy
Increased plant biomass is observed in terrestrial systems due to rising levels of atmospheric CO2, but responses of marine macroalgae to CO2 enrichment are unclear. The 200% increase in CO2 by 2100 is predicted to enhance the productivity of fleshy macroalgae that acquire inorganic carbon solely as...
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Online Access: | https://biblio.ugent.be/publication/8667403 http://hdl.handle.net/1854/LU-8667403 https://doi.org/10.1002/ece3.4679 https://biblio.ugent.be/publication/8667403/file/8670885 |
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ftunivgent:oai:archive.ugent.be:8667403 2023-06-11T04:15:43+02:00 Responses of macroalgae to CO2 enrichment cannot be inferred solely from their inorganic carbon uptake strategy van der Loos, Luna Schmid, Matthias Leal, Pablo P. McGraw, Christina M. Britton, Damon Revill, Andrew T. Virtue, Patti Nichols, Peter D. Hurd, Catriona L. 2019 application/pdf https://biblio.ugent.be/publication/8667403 http://hdl.handle.net/1854/LU-8667403 https://doi.org/10.1002/ece3.4679 https://biblio.ugent.be/publication/8667403/file/8670885 eng eng https://biblio.ugent.be/publication/8667403 http://hdl.handle.net/1854/LU-8667403 http://dx.doi.org/10.1002/ece3.4679 https://biblio.ugent.be/publication/8667403/file/8670885 Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess ECOLOGY AND EVOLUTION ISSN: 2045-7758 Earth and Environmental Sciences Biology and Life Sciences Ecology Evolution Behavior and Systematics Nature and Landscape Conservation carbon uptake strategy carbon dioxide-concentrating mechanism CCM CO2 enrichment macroalgae non-CCM ocean acidification physiology ELEVATED CO2 MARINE MACROALGAE ULVA-RIGIDA INCREASED TEMPERATURE NITROGEN-METABOLISM VARIABLE RESPONSES PALMARIA-PALMATA AMMONIUM UPTAKE CLIMATE-CHANGE journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 ftunivgent https://doi.org/10.1002/ece3.4679 2023-04-19T22:08:26Z Increased plant biomass is observed in terrestrial systems due to rising levels of atmospheric CO2, but responses of marine macroalgae to CO2 enrichment are unclear. The 200% increase in CO2 by 2100 is predicted to enhance the productivity of fleshy macroalgae that acquire inorganic carbon solely as CO2 (non-carbon dioxide-concentrating mechanism [CCM] species-i.e., species without a carbon dioxide-concentrating mechanism), whereas those that additionally uptake bicarbonate (CCM species) are predicted to respond neutrally or positively depending on their affinity for bicarbonate. Previous studies, however, show that fleshy macroalgae exhibit a broad variety of responses to CO2 enrichment and the underlying mechanisms are largely unknown. This physiological study compared the responses of a CCM species (Lomentaria australis) with a non-CCM species (Craspedocarpus ramentaceus) to CO2 enrichment with regards to growth, net photosynthesis, and biochemistry. Contrary to expectations, there was no enrichment effect for the non-CCM species, whereas the CCM species had a twofold greater growth rate, likely driven by a downregulation of the energetically costly CCM(s). This saved energy was invested into new growth rather than storage lipids and fatty acids. In addition, we conducted a comprehensive literature synthesis to examine the extent to which the growth and photosynthetic responses of fleshy macroalgae to elevated CO2 are related to their carbon acquisition strategies. Findings highlight that the responses of macroalgae to CO2 enrichment cannot be inferred solely from their carbon uptake strategy, and targeted physiological experiments on a wider range of species are needed to better predict responses of macroalgae to future oceanic change. Article in Journal/Newspaper Ocean acidification Ghent University Academic Bibliography Ecology and Evolution 9 1 125 140 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences Biology and Life Sciences Ecology Evolution Behavior and Systematics Nature and Landscape Conservation carbon uptake strategy carbon dioxide-concentrating mechanism CCM CO2 enrichment macroalgae non-CCM ocean acidification physiology ELEVATED CO2 MARINE MACROALGAE ULVA-RIGIDA INCREASED TEMPERATURE NITROGEN-METABOLISM VARIABLE RESPONSES PALMARIA-PALMATA AMMONIUM UPTAKE CLIMATE-CHANGE |
spellingShingle |
Earth and Environmental Sciences Biology and Life Sciences Ecology Evolution Behavior and Systematics Nature and Landscape Conservation carbon uptake strategy carbon dioxide-concentrating mechanism CCM CO2 enrichment macroalgae non-CCM ocean acidification physiology ELEVATED CO2 MARINE MACROALGAE ULVA-RIGIDA INCREASED TEMPERATURE NITROGEN-METABOLISM VARIABLE RESPONSES PALMARIA-PALMATA AMMONIUM UPTAKE CLIMATE-CHANGE van der Loos, Luna Schmid, Matthias Leal, Pablo P. McGraw, Christina M. Britton, Damon Revill, Andrew T. Virtue, Patti Nichols, Peter D. Hurd, Catriona L. Responses of macroalgae to CO2 enrichment cannot be inferred solely from their inorganic carbon uptake strategy |
topic_facet |
Earth and Environmental Sciences Biology and Life Sciences Ecology Evolution Behavior and Systematics Nature and Landscape Conservation carbon uptake strategy carbon dioxide-concentrating mechanism CCM CO2 enrichment macroalgae non-CCM ocean acidification physiology ELEVATED CO2 MARINE MACROALGAE ULVA-RIGIDA INCREASED TEMPERATURE NITROGEN-METABOLISM VARIABLE RESPONSES PALMARIA-PALMATA AMMONIUM UPTAKE CLIMATE-CHANGE |
description |
Increased plant biomass is observed in terrestrial systems due to rising levels of atmospheric CO2, but responses of marine macroalgae to CO2 enrichment are unclear. The 200% increase in CO2 by 2100 is predicted to enhance the productivity of fleshy macroalgae that acquire inorganic carbon solely as CO2 (non-carbon dioxide-concentrating mechanism [CCM] species-i.e., species without a carbon dioxide-concentrating mechanism), whereas those that additionally uptake bicarbonate (CCM species) are predicted to respond neutrally or positively depending on their affinity for bicarbonate. Previous studies, however, show that fleshy macroalgae exhibit a broad variety of responses to CO2 enrichment and the underlying mechanisms are largely unknown. This physiological study compared the responses of a CCM species (Lomentaria australis) with a non-CCM species (Craspedocarpus ramentaceus) to CO2 enrichment with regards to growth, net photosynthesis, and biochemistry. Contrary to expectations, there was no enrichment effect for the non-CCM species, whereas the CCM species had a twofold greater growth rate, likely driven by a downregulation of the energetically costly CCM(s). This saved energy was invested into new growth rather than storage lipids and fatty acids. In addition, we conducted a comprehensive literature synthesis to examine the extent to which the growth and photosynthetic responses of fleshy macroalgae to elevated CO2 are related to their carbon acquisition strategies. Findings highlight that the responses of macroalgae to CO2 enrichment cannot be inferred solely from their carbon uptake strategy, and targeted physiological experiments on a wider range of species are needed to better predict responses of macroalgae to future oceanic change. |
format |
Article in Journal/Newspaper |
author |
van der Loos, Luna Schmid, Matthias Leal, Pablo P. McGraw, Christina M. Britton, Damon Revill, Andrew T. Virtue, Patti Nichols, Peter D. Hurd, Catriona L. |
author_facet |
van der Loos, Luna Schmid, Matthias Leal, Pablo P. McGraw, Christina M. Britton, Damon Revill, Andrew T. Virtue, Patti Nichols, Peter D. Hurd, Catriona L. |
author_sort |
van der Loos, Luna |
title |
Responses of macroalgae to CO2 enrichment cannot be inferred solely from their inorganic carbon uptake strategy |
title_short |
Responses of macroalgae to CO2 enrichment cannot be inferred solely from their inorganic carbon uptake strategy |
title_full |
Responses of macroalgae to CO2 enrichment cannot be inferred solely from their inorganic carbon uptake strategy |
title_fullStr |
Responses of macroalgae to CO2 enrichment cannot be inferred solely from their inorganic carbon uptake strategy |
title_full_unstemmed |
Responses of macroalgae to CO2 enrichment cannot be inferred solely from their inorganic carbon uptake strategy |
title_sort |
responses of macroalgae to co2 enrichment cannot be inferred solely from their inorganic carbon uptake strategy |
publishDate |
2019 |
url |
https://biblio.ugent.be/publication/8667403 http://hdl.handle.net/1854/LU-8667403 https://doi.org/10.1002/ece3.4679 https://biblio.ugent.be/publication/8667403/file/8670885 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ECOLOGY AND EVOLUTION ISSN: 2045-7758 |
op_relation |
https://biblio.ugent.be/publication/8667403 http://hdl.handle.net/1854/LU-8667403 http://dx.doi.org/10.1002/ece3.4679 https://biblio.ugent.be/publication/8667403/file/8670885 |
op_rights |
Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/ece3.4679 |
container_title |
Ecology and Evolution |
container_volume |
9 |
container_issue |
1 |
container_start_page |
125 |
op_container_end_page |
140 |
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1768372763924365312 |