H+-driven increase in CO2 uptake and decrease in HCO3- uptake explain coccolithophores' acclimation responses to ocean acidification
Recent ocean acidification (OA) studies revealed that seawater [H+] rather than [CO2] or [ inline image] regulate short-term responses in carbon fluxes of Emiliania huxleyi. Here, we investigated whether acclimation to altered carbonate chemistry modulates this regulation pattern and how the carbon...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.873376 2023-05-15T17:51:06+02:00 H+-driven increase in CO2 uptake and decrease in HCO3- uptake explain coccolithophores' acclimation responses to ocean acidification Kottmeier, Dorothee Rokitta, Sebastian D Rost, Björn 2016-03-10 text/tab-separated-values, 495 data points https://doi.pangaea.de/10.1594/PANGAEA.873376 https://doi.org/10.1594/PANGAEA.873376 en eng PANGAEA Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.873376 https://doi.org/10.1594/PANGAEA.873376 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Kottmeier, Dorothee; Rokitta, Sebastian D; Rost, Björn (2016): H+-driven increase in CO2 uptake and decrease in HCO3- uptake explain coccolithophores' acclimation responses to ocean acidification. Limnology and Oceanography, 61(6), 2045-2057, https://doi.org/10.1002/lno.10352 Alkalinity total standard deviation Aragonite saturation state Bicarbonate ion Bicarbonate uptake in chlorophyll Bicarbonate uptake rate in chlorophyll Biomass/Abundance/Elemental composition Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved particulate per cell per volume organic particulate/Nitrogen Dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.873376 https://doi.org/10.1002/lno.10352 2023-01-20T09:08:48Z Recent ocean acidification (OA) studies revealed that seawater [H+] rather than [CO2] or [ inline image] regulate short-term responses in carbon fluxes of Emiliania huxleyi. Here, we investigated whether acclimation to altered carbonate chemistry modulates this regulation pattern and how the carbon supply for calcification is affected by carbonate chemistry. We acclimated E. huxleyi to present-day (ambient [CO2], [ inline image], and pH) and OA conditions (high [CO2], ambient [ inline image], low pH). To differentiate between the CO2 and pH/H+ effects, we also acclimated cells to carbonation (high [CO2] and [ inline image], ambient pH) and acidification (ambient [CO2], low [ inline image], and pH). Under these conditions, growth, production of particulate inorganic and organic carbon, as well as carbon and oxygen fluxes were measured. Under carbonation, photosynthesis and calcification were stimulated due to additional inline image uptake, whereas growth was unaffected. Such stimulatory effects are not apparent after short-term carbonation, indicating that cells adjusted their carbon acquisition during acclimation. Being driven by [ inline image], these regulations can, however, not explain typical OA effects. Under acidification and OA, photosynthesis stayed constant, whereas calcification and growth decreased. Similar to the short-term responses toward high [H+], CO2 uptake significantly increased, but inline image uptake decreased. This antagonistic regulation in CO2 and inline image uptake can explain why photosynthesis, being able to use CO2 and inline image, often benefits from OA, whereas calcification, being mostly dependent on inline image, often decreases. We identified H+ as prime driver of coccolithophores' acclimation responses toward OA. Acidified conditions seem to put metabolic burdens on the cells that result in decreased growth. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Alkalinity total standard deviation Aragonite saturation state Bicarbonate ion Bicarbonate uptake in chlorophyll Bicarbonate uptake rate in chlorophyll Biomass/Abundance/Elemental composition Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved particulate per cell per volume organic particulate/Nitrogen |
spellingShingle |
Alkalinity total standard deviation Aragonite saturation state Bicarbonate ion Bicarbonate uptake in chlorophyll Bicarbonate uptake rate in chlorophyll Biomass/Abundance/Elemental composition Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved particulate per cell per volume organic particulate/Nitrogen Kottmeier, Dorothee Rokitta, Sebastian D Rost, Björn H+-driven increase in CO2 uptake and decrease in HCO3- uptake explain coccolithophores' acclimation responses to ocean acidification |
topic_facet |
Alkalinity total standard deviation Aragonite saturation state Bicarbonate ion Bicarbonate uptake in chlorophyll Bicarbonate uptake rate in chlorophyll Biomass/Abundance/Elemental composition Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved particulate per cell per volume organic particulate/Nitrogen |
description |
Recent ocean acidification (OA) studies revealed that seawater [H+] rather than [CO2] or [ inline image] regulate short-term responses in carbon fluxes of Emiliania huxleyi. Here, we investigated whether acclimation to altered carbonate chemistry modulates this regulation pattern and how the carbon supply for calcification is affected by carbonate chemistry. We acclimated E. huxleyi to present-day (ambient [CO2], [ inline image], and pH) and OA conditions (high [CO2], ambient [ inline image], low pH). To differentiate between the CO2 and pH/H+ effects, we also acclimated cells to carbonation (high [CO2] and [ inline image], ambient pH) and acidification (ambient [CO2], low [ inline image], and pH). Under these conditions, growth, production of particulate inorganic and organic carbon, as well as carbon and oxygen fluxes were measured. Under carbonation, photosynthesis and calcification were stimulated due to additional inline image uptake, whereas growth was unaffected. Such stimulatory effects are not apparent after short-term carbonation, indicating that cells adjusted their carbon acquisition during acclimation. Being driven by [ inline image], these regulations can, however, not explain typical OA effects. Under acidification and OA, photosynthesis stayed constant, whereas calcification and growth decreased. Similar to the short-term responses toward high [H+], CO2 uptake significantly increased, but inline image uptake decreased. This antagonistic regulation in CO2 and inline image uptake can explain why photosynthesis, being able to use CO2 and inline image, often benefits from OA, whereas calcification, being mostly dependent on inline image, often decreases. We identified H+ as prime driver of coccolithophores' acclimation responses toward OA. Acidified conditions seem to put metabolic burdens on the cells that result in decreased growth. |
format |
Dataset |
author |
Kottmeier, Dorothee Rokitta, Sebastian D Rost, Björn |
author_facet |
Kottmeier, Dorothee Rokitta, Sebastian D Rost, Björn |
author_sort |
Kottmeier, Dorothee |
title |
H+-driven increase in CO2 uptake and decrease in HCO3- uptake explain coccolithophores' acclimation responses to ocean acidification |
title_short |
H+-driven increase in CO2 uptake and decrease in HCO3- uptake explain coccolithophores' acclimation responses to ocean acidification |
title_full |
H+-driven increase in CO2 uptake and decrease in HCO3- uptake explain coccolithophores' acclimation responses to ocean acidification |
title_fullStr |
H+-driven increase in CO2 uptake and decrease in HCO3- uptake explain coccolithophores' acclimation responses to ocean acidification |
title_full_unstemmed |
H+-driven increase in CO2 uptake and decrease in HCO3- uptake explain coccolithophores' acclimation responses to ocean acidification |
title_sort |
h+-driven increase in co2 uptake and decrease in hco3- uptake explain coccolithophores' acclimation responses to ocean acidification |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.873376 https://doi.org/10.1594/PANGAEA.873376 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Kottmeier, Dorothee; Rokitta, Sebastian D; Rost, Björn (2016): H+-driven increase in CO2 uptake and decrease in HCO3- uptake explain coccolithophores' acclimation responses to ocean acidification. Limnology and Oceanography, 61(6), 2045-2057, https://doi.org/10.1002/lno.10352 |
op_relation |
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.873376 https://doi.org/10.1594/PANGAEA.873376 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.873376 https://doi.org/10.1002/lno.10352 |
_version_ |
1766158131373539328 |