Seawater carbonate chemistry and cellular inorganic carbon fluxes in Trichodesmium
To predict effects of climate change on phytoplankton, it is crucial to understand how their mechanisms for carbon acquisition respond to environmental conditions. Aiming to shed light on the responses of extra- and intracellular inorganic C (Ci) fluxes, the cyanobacterium Trichodesmium erythraeum I...
Main Authors: | , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2015
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.956021 https://doi.org/10.1594/PANGAEA.956021 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.956021 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.956021 2023-05-15T17:52:08+02:00 Seawater carbonate chemistry and cellular inorganic carbon fluxes in Trichodesmium Eichner, Meri Thoms, Silke Kranz, Sven A Rost, Björn 2015-02-24 text/tab-separated-values, 580 data points https://doi.pangaea.de/10.1594/PANGAEA.956021 https://doi.org/10.1594/PANGAEA.956021 en eng PANGAEA Eichner, Meri; Thoms, Silke; Kranz, Sven A; Rost, Björn (2015): Cellular inorganic carbon fluxes in Trichodesmium: a combined approach using measurements and modelling. Journal of Experimental Botany, 66(3), 749-759, https://doi.org/10.1093/jxb/eru427 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.956021 https://doi.org/10.1594/PANGAEA.956021 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Alkalinity total standard deviation Aragonite saturation state Bacteria Bicarbonate ion Bicarbonate uptake in chlorophyll Bicarbonate uptake rate in chlorophyll Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Carbon dioxide efflux per chlorophyll a Carbon dioxide uptake in chlorophyll Carbon dioxide uptake rate in chlorophyll Carbon fixation rate Carbon uptake rate Cyanobacteria Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gross carbon uptake rate Laboratory experiment Laboratory strains Not applicable OA-ICC Ocean Acidification International Coordination Centre Other metabolic rates Partial pressure of carbon dioxide Dataset 2015 ftpangaea https://doi.org/10.1594/PANGAEA.95602110.1093/jxb/eru427 2023-04-06T07:15:43Z To predict effects of climate change on phytoplankton, it is crucial to understand how their mechanisms for carbon acquisition respond to environmental conditions. Aiming to shed light on the responses of extra- and intracellular inorganic C (Ci) fluxes, the cyanobacterium Trichodesmium erythraeum IMS101 was grown with different nitrogen sources (N2 vs NO3 –) and pCO2 levels (380 vs 1400 µatm). Cellular Ci fluxes were assessed by combining membrane inlet mass spectrometry (MIMS), 13C fractionation measurements, and modelling. Aside from a significant decrease in Ci affinity at elevated pCO2 and changes in CO2 efflux with different N sources, extracellular Ci fluxes estimated by MIMS were largely unaffected by the treatments. 13C fractionation during biomass production, however, increased with pCO2, irrespective of the N source. Strong discrepancies were observed in CO2 leakage estimates obtained by MIMS and a 13C-based approach, which further increased under elevated pCO2. These offsets could be explained by applying a model that comprises extracellular CO2 and HCO3– fluxes as well as internal Ci cycling around the carboxysome via the CO2 uptake facilitator NDH-14. Assuming unidirectional, kinetic fractionation between CO2 and HCO3– in the cytosol or enzymatic fractionation by NDH-14, both significantly improved the comparability of leakage estimates. Our results highlight the importance of internal Ci cycling for 13C composition as well as cellular energy budgets of Trichodesmium, which ought to be considered in process studies on climate change effects. 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 Bacteria Bicarbonate ion Bicarbonate uptake in chlorophyll Bicarbonate uptake rate in chlorophyll Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Carbon dioxide efflux per chlorophyll a Carbon dioxide uptake in chlorophyll Carbon dioxide uptake rate in chlorophyll Carbon fixation rate Carbon uptake rate Cyanobacteria Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gross carbon uptake rate Laboratory experiment Laboratory strains Not applicable OA-ICC Ocean Acidification International Coordination Centre Other metabolic rates Partial pressure of carbon dioxide |
spellingShingle |
Alkalinity total standard deviation Aragonite saturation state Bacteria Bicarbonate ion Bicarbonate uptake in chlorophyll Bicarbonate uptake rate in chlorophyll Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Carbon dioxide efflux per chlorophyll a Carbon dioxide uptake in chlorophyll Carbon dioxide uptake rate in chlorophyll Carbon fixation rate Carbon uptake rate Cyanobacteria Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gross carbon uptake rate Laboratory experiment Laboratory strains Not applicable OA-ICC Ocean Acidification International Coordination Centre Other metabolic rates Partial pressure of carbon dioxide Eichner, Meri Thoms, Silke Kranz, Sven A Rost, Björn Seawater carbonate chemistry and cellular inorganic carbon fluxes in Trichodesmium |
topic_facet |
Alkalinity total standard deviation Aragonite saturation state Bacteria Bicarbonate ion Bicarbonate uptake in chlorophyll Bicarbonate uptake rate in chlorophyll Bottles or small containers/Aquaria (<20 L) Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Carbon dioxide efflux per chlorophyll a Carbon dioxide uptake in chlorophyll Carbon dioxide uptake rate in chlorophyll Carbon fixation rate Carbon uptake rate Cyanobacteria Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gross carbon uptake rate Laboratory experiment Laboratory strains Not applicable OA-ICC Ocean Acidification International Coordination Centre Other metabolic rates Partial pressure of carbon dioxide |
description |
To predict effects of climate change on phytoplankton, it is crucial to understand how their mechanisms for carbon acquisition respond to environmental conditions. Aiming to shed light on the responses of extra- and intracellular inorganic C (Ci) fluxes, the cyanobacterium Trichodesmium erythraeum IMS101 was grown with different nitrogen sources (N2 vs NO3 –) and pCO2 levels (380 vs 1400 µatm). Cellular Ci fluxes were assessed by combining membrane inlet mass spectrometry (MIMS), 13C fractionation measurements, and modelling. Aside from a significant decrease in Ci affinity at elevated pCO2 and changes in CO2 efflux with different N sources, extracellular Ci fluxes estimated by MIMS were largely unaffected by the treatments. 13C fractionation during biomass production, however, increased with pCO2, irrespective of the N source. Strong discrepancies were observed in CO2 leakage estimates obtained by MIMS and a 13C-based approach, which further increased under elevated pCO2. These offsets could be explained by applying a model that comprises extracellular CO2 and HCO3– fluxes as well as internal Ci cycling around the carboxysome via the CO2 uptake facilitator NDH-14. Assuming unidirectional, kinetic fractionation between CO2 and HCO3– in the cytosol or enzymatic fractionation by NDH-14, both significantly improved the comparability of leakage estimates. Our results highlight the importance of internal Ci cycling for 13C composition as well as cellular energy budgets of Trichodesmium, which ought to be considered in process studies on climate change effects. |
format |
Dataset |
author |
Eichner, Meri Thoms, Silke Kranz, Sven A Rost, Björn |
author_facet |
Eichner, Meri Thoms, Silke Kranz, Sven A Rost, Björn |
author_sort |
Eichner, Meri |
title |
Seawater carbonate chemistry and cellular inorganic carbon fluxes in Trichodesmium |
title_short |
Seawater carbonate chemistry and cellular inorganic carbon fluxes in Trichodesmium |
title_full |
Seawater carbonate chemistry and cellular inorganic carbon fluxes in Trichodesmium |
title_fullStr |
Seawater carbonate chemistry and cellular inorganic carbon fluxes in Trichodesmium |
title_full_unstemmed |
Seawater carbonate chemistry and cellular inorganic carbon fluxes in Trichodesmium |
title_sort |
seawater carbonate chemistry and cellular inorganic carbon fluxes in trichodesmium |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.956021 https://doi.org/10.1594/PANGAEA.956021 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Eichner, Meri; Thoms, Silke; Kranz, Sven A; Rost, Björn (2015): Cellular inorganic carbon fluxes in Trichodesmium: a combined approach using measurements and modelling. Journal of Experimental Botany, 66(3), 749-759, https://doi.org/10.1093/jxb/eru427 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.956021 https://doi.org/10.1594/PANGAEA.956021 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.95602110.1093/jxb/eru427 |
_version_ |
1766159480679038976 |