Seawater carbonate chemistry and the decrease of H+ concentration in the phycosphere and thickness of the pH boundary layer of marine diatoms Coscinodiscus wailesii
Surface ocean pH is declining due to anthropogenic atmospheric CO2 uptake with a global decline of ~0.3 possible by 2100. Extracellular pH influences a range of biological processes, including nutrient uptake, calcification and silicification. However, there are poor constraints on how pH levels in...
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Format: | Dataset |
Language: | English |
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PANGAEA
2022
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.951332 https://doi.org/10.1594/PANGAEA.951332 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.951332 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Acid-base regulation Alkalinity total Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coscinodiscus wailesii Figure Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Hydrogen ion concentration Laboratory experiment Laboratory strains Not applicable OA-ICC Ocean Acidification International Coordination Centre Ochrophyta Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phytoplankton Proton gradients Salinity Single species Species unique identification Temperature water Thickness Treatment Type |
spellingShingle |
Acid-base regulation Alkalinity total Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coscinodiscus wailesii Figure Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Hydrogen ion concentration Laboratory experiment Laboratory strains Not applicable OA-ICC Ocean Acidification International Coordination Centre Ochrophyta Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phytoplankton Proton gradients Salinity Single species Species unique identification Temperature water Thickness Treatment Type Liu, Fengjie Gledhill, Martha Tan, Qiaoguo Zhu, Kechen Zhang, Qiong Salaün, Pascal Tagliabue, Alessandro Zhang, Yanjun Weiss, Dominik J Achterberg, Eric Pieter Korchev, Yuri Seawater carbonate chemistry and the decrease of H+ concentration in the phycosphere and thickness of the pH boundary layer of marine diatoms Coscinodiscus wailesii |
topic_facet |
Acid-base regulation Alkalinity total Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coscinodiscus wailesii Figure Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Hydrogen ion concentration Laboratory experiment Laboratory strains Not applicable OA-ICC Ocean Acidification International Coordination Centre Ochrophyta Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phytoplankton Proton gradients Salinity Single species Species unique identification Temperature water Thickness Treatment Type |
description |
Surface ocean pH is declining due to anthropogenic atmospheric CO2 uptake with a global decline of ~0.3 possible by 2100. Extracellular pH influences a range of biological processes, including nutrient uptake, calcification and silicification. However, there are poor constraints on how pH levels in the extracellular microenvironment surrounding phytoplankton cells (the phycosphere) differ from bulk seawater. This adds uncertainty to biological impacts of environmental change. Furthermore, previous modelling work suggests that phycosphere pH of small cells is close to bulk seawater, and this has not been experimentally verified. Here we observe under 140 μmol photons/m**2/s the phycosphere pH of Chlamydomonas concordia (5 µm diameter), Emiliania huxleyi (5 µm), Coscinodiscus radiatus (50 µm) and C. wailesii (100 µm) are 0.11 ± 0.07, 0.20 ± 0.09, 0.41 ± 0.04 and 0.15 ± 0.20 (mean ± SD) higher than bulk seawater (pH 8.00), respectively. Thickness of the pH boundary layer of C. wailesii increases from 18 ± 4 to 122 ± 17 µm when bulk seawater pH decreases from 8.00 to 7.78. Phycosphere pH is regulated by photosynthesis and extracellular enzymatic transformation of bicarbonate, as well as being influenced by light intensity and seawater pH and buffering capacity. The pH change alters Fe speciation in the phycosphere, and hence Fe availability to phytoplankton is likely better predicted by the phycosphere, rather than bulk seawater. Overall, the precise quantification of chemical conditions in the phycosphere is crucial for assessing the sensitivity of marine phytoplankton to ongoing ocean acidification and Fe limitation in surface oceans. |
format |
Dataset |
author |
Liu, Fengjie Gledhill, Martha Tan, Qiaoguo Zhu, Kechen Zhang, Qiong Salaün, Pascal Tagliabue, Alessandro Zhang, Yanjun Weiss, Dominik J Achterberg, Eric Pieter Korchev, Yuri |
author_facet |
Liu, Fengjie Gledhill, Martha Tan, Qiaoguo Zhu, Kechen Zhang, Qiong Salaün, Pascal Tagliabue, Alessandro Zhang, Yanjun Weiss, Dominik J Achterberg, Eric Pieter Korchev, Yuri |
author_sort |
Liu, Fengjie |
title |
Seawater carbonate chemistry and the decrease of H+ concentration in the phycosphere and thickness of the pH boundary layer of marine diatoms Coscinodiscus wailesii |
title_short |
Seawater carbonate chemistry and the decrease of H+ concentration in the phycosphere and thickness of the pH boundary layer of marine diatoms Coscinodiscus wailesii |
title_full |
Seawater carbonate chemistry and the decrease of H+ concentration in the phycosphere and thickness of the pH boundary layer of marine diatoms Coscinodiscus wailesii |
title_fullStr |
Seawater carbonate chemistry and the decrease of H+ concentration in the phycosphere and thickness of the pH boundary layer of marine diatoms Coscinodiscus wailesii |
title_full_unstemmed |
Seawater carbonate chemistry and the decrease of H+ concentration in the phycosphere and thickness of the pH boundary layer of marine diatoms Coscinodiscus wailesii |
title_sort |
seawater carbonate chemistry and the decrease of h+ concentration in the phycosphere and thickness of the ph boundary layer of marine diatoms coscinodiscus wailesii |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.951332 https://doi.org/10.1594/PANGAEA.951332 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Liu, Fengjie; Gledhill, Martha; Tan, Qiaoguo; Zhu, Kechen; Zhang, Qiong; Salaün, Pascal; Tagliabue, Alessandro; Zhang, Yanjun; Weiss, Dominik J; Achterberg, Eric Pieter; Korchev, Yuri (2022): Phycosphere pH of unicellular nano- and micro- phytoplankton cells and consequences for iron speciation. The ISME Journal, 16(10), 2329-2336, https://doi.org/10.1038/s41396-022-01280-1 Liu, Fengjie (2022): Data for the phycosphere pH of unicellular nano- and micro- phytoplankton cells and consequences for iron speciation. figshare, https://doi.org/10.6084/m9.figshare.19576477.v1 Raw data for the phycosphere pH of unicellular nano- and micro- phytoplankton cells and consequences for iron speciation (URI: https://download.pangaea.de/reference/116194/attachments/Phycosphere_pH_compiled_data_2022April10_F.Liu.xlsx) Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html https://doi.pangaea.de/10.1594/PANGAEA.951332 https://doi.org/10.1594/PANGAEA.951332 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.951332 https://doi.org/10.1038/s41396-022-01280-1 https://doi.org/10.6084/m9.figshare.19576477.v1 |
_version_ |
1766158123906629632 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.951332 2023-05-15T17:51:06+02:00 Seawater carbonate chemistry and the decrease of H+ concentration in the phycosphere and thickness of the pH boundary layer of marine diatoms Coscinodiscus wailesii Liu, Fengjie Gledhill, Martha Tan, Qiaoguo Zhu, Kechen Zhang, Qiong Salaün, Pascal Tagliabue, Alessandro Zhang, Yanjun Weiss, Dominik J Achterberg, Eric Pieter Korchev, Yuri 2022-11-29 text/tab-separated-values, 3286 data points https://doi.pangaea.de/10.1594/PANGAEA.951332 https://doi.org/10.1594/PANGAEA.951332 en eng PANGAEA Liu, Fengjie; Gledhill, Martha; Tan, Qiaoguo; Zhu, Kechen; Zhang, Qiong; Salaün, Pascal; Tagliabue, Alessandro; Zhang, Yanjun; Weiss, Dominik J; Achterberg, Eric Pieter; Korchev, Yuri (2022): Phycosphere pH of unicellular nano- and micro- phytoplankton cells and consequences for iron speciation. The ISME Journal, 16(10), 2329-2336, https://doi.org/10.1038/s41396-022-01280-1 Liu, Fengjie (2022): Data for the phycosphere pH of unicellular nano- and micro- phytoplankton cells and consequences for iron speciation. figshare, https://doi.org/10.6084/m9.figshare.19576477.v1 Raw data for the phycosphere pH of unicellular nano- and micro- phytoplankton cells and consequences for iron speciation (URI: https://download.pangaea.de/reference/116194/attachments/Phycosphere_pH_compiled_data_2022April10_F.Liu.xlsx) Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html https://doi.pangaea.de/10.1594/PANGAEA.951332 https://doi.org/10.1594/PANGAEA.951332 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Acid-base regulation Alkalinity total Aragonite saturation state Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Chromista Coscinodiscus wailesii Figure Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Hydrogen ion concentration Laboratory experiment Laboratory strains Not applicable OA-ICC Ocean Acidification International Coordination Centre Ochrophyta Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Pelagos pH Phytoplankton Proton gradients Salinity Single species Species unique identification Temperature water Thickness Treatment Type Dataset 2022 ftpangaea https://doi.org/10.1594/PANGAEA.951332 https://doi.org/10.1038/s41396-022-01280-1 https://doi.org/10.6084/m9.figshare.19576477.v1 2023-01-20T09:16:35Z Surface ocean pH is declining due to anthropogenic atmospheric CO2 uptake with a global decline of ~0.3 possible by 2100. Extracellular pH influences a range of biological processes, including nutrient uptake, calcification and silicification. However, there are poor constraints on how pH levels in the extracellular microenvironment surrounding phytoplankton cells (the phycosphere) differ from bulk seawater. This adds uncertainty to biological impacts of environmental change. Furthermore, previous modelling work suggests that phycosphere pH of small cells is close to bulk seawater, and this has not been experimentally verified. Here we observe under 140 μmol photons/m**2/s the phycosphere pH of Chlamydomonas concordia (5 µm diameter), Emiliania huxleyi (5 µm), Coscinodiscus radiatus (50 µm) and C. wailesii (100 µm) are 0.11 ± 0.07, 0.20 ± 0.09, 0.41 ± 0.04 and 0.15 ± 0.20 (mean ± SD) higher than bulk seawater (pH 8.00), respectively. Thickness of the pH boundary layer of C. wailesii increases from 18 ± 4 to 122 ± 17 µm when bulk seawater pH decreases from 8.00 to 7.78. Phycosphere pH is regulated by photosynthesis and extracellular enzymatic transformation of bicarbonate, as well as being influenced by light intensity and seawater pH and buffering capacity. The pH change alters Fe speciation in the phycosphere, and hence Fe availability to phytoplankton is likely better predicted by the phycosphere, rather than bulk seawater. Overall, the precise quantification of chemical conditions in the phycosphere is crucial for assessing the sensitivity of marine phytoplankton to ongoing ocean acidification and Fe limitation in surface oceans. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science |