Seawater carbonate chemistry and photosynthetic performance of Thalassiosira (Conticribra) weissflogii (Bacillariophyta)
The purpose of this study was to investigate the effects of ocean acidification and nutrient level on the growth and photosynthetic performance of the diatom Thalassiosira (Conticribra) weissflogii. Cells were exposed to varying levels of CO2 [current CO2 (LC), 400 μatm; high CO2 (HC), 1000 μatm] an...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.888942 2023-05-15T17:51:06+02:00 Seawater carbonate chemistry and photosynthetic performance of Thalassiosira (Conticribra) weissflogii (Bacillariophyta) Yang, Yuling Li, Wei Li, Zhenzhen Xu, Juntian 2018-04-24 text/tab-separated-values, 2910 data points https://doi.pangaea.de/10.1594/PANGAEA.888942 https://doi.org/10.1594/PANGAEA.888942 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.888942 https://doi.org/10.1594/PANGAEA.888942 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Yang, Yuling; Li, Wei; Li, Zhenzhen; Xu, Juntian (2018): Combined effects of ocean acidification and nutrient levels on the photosynthetic performance of Thalassiosira (Conticribra) weissflogii (Bacillariophyta). Phycologia, 57(2), 121-129, https://doi.org/10.2216/16-127.1 Alkalinity total standard deviation Aragonite saturation state Bicarbonate ion Biomass/Abundance/Elemental composition 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 Carotenoids Carotenoids/Chlorophyll a ratio Carotenoids per cell Chlorophyll a Chlorophyll a per cell Chromista Effective quantum yield Electron transport rate relative Figure Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Growth rate Dataset 2018 ftpangaea https://doi.org/10.1594/PANGAEA.888942 https://doi.org/10.2216/16-127.1 2023-01-20T09:10:49Z The purpose of this study was to investigate the effects of ocean acidification and nutrient level on the growth and photosynthetic performance of the diatom Thalassiosira (Conticribra) weissflogii. Cells were exposed to varying levels of CO2 [current CO2 (LC), 400 μatm; high CO2 (HC), 1000 μatm] and nutrients, with NO3− and PO43− concentrations enriched, respectively, at 50 μmol/l and 5 μmol/l [high nutrient (HN)], 20 μmol/l and 2 μmol/l [mid-level nutrient (MN)] and 10 μmol/l and 1 μmol/l [low nutrient (LN)]. After acclimatization for over 20 generations, no significant differences in growth rates were observed between LC and HC cultures under both HN and LN conditions; whereas, HC significantly reduced the growth rate under MN conditions. Lower nutrient loading significantly inhibited the growth rates of both LC and HC cultures; whereas, HC (but not LC) significantly decreased chlorophyll a and carotenoid contents in LN treatments. HC conditions significantly increased maximum relative electron transport rates (rETRmax) and saturating light intensity (Ik) of HN cultures, with rETRmax showing a positive relationship with growth rates stimulated by nutrient enrichments. The maximum (Fv/Fm) and effective quantum yield (Yield) were all inhibited under LN conditions, with the greatest reduction in Yield observed under LC conditions, corresponding to the highest nonphotochemical quenching, lowest light use efficiency (α) and lowest rETRmax. Based on these results, ocean acidification and nutrient availability may influence photosynthetic performance in T. weissflogii individually or interactively, with the future growth of marine diatoms mediated by these codependent environmental drivers. 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 Biomass/Abundance/Elemental composition 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 Carotenoids Carotenoids/Chlorophyll a ratio Carotenoids per cell Chlorophyll a Chlorophyll a per cell Chromista Effective quantum yield Electron transport rate relative Figure Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Growth rate |
spellingShingle |
Alkalinity total standard deviation Aragonite saturation state Bicarbonate ion Biomass/Abundance/Elemental composition 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 Carotenoids Carotenoids/Chlorophyll a ratio Carotenoids per cell Chlorophyll a Chlorophyll a per cell Chromista Effective quantum yield Electron transport rate relative Figure Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Growth rate Yang, Yuling Li, Wei Li, Zhenzhen Xu, Juntian Seawater carbonate chemistry and photosynthetic performance of Thalassiosira (Conticribra) weissflogii (Bacillariophyta) |
topic_facet |
Alkalinity total standard deviation Aragonite saturation state Bicarbonate ion Biomass/Abundance/Elemental composition 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 Carotenoids Carotenoids/Chlorophyll a ratio Carotenoids per cell Chlorophyll a Chlorophyll a per cell Chromista Effective quantum yield Electron transport rate relative Figure Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Growth rate |
description |
The purpose of this study was to investigate the effects of ocean acidification and nutrient level on the growth and photosynthetic performance of the diatom Thalassiosira (Conticribra) weissflogii. Cells were exposed to varying levels of CO2 [current CO2 (LC), 400 μatm; high CO2 (HC), 1000 μatm] and nutrients, with NO3− and PO43− concentrations enriched, respectively, at 50 μmol/l and 5 μmol/l [high nutrient (HN)], 20 μmol/l and 2 μmol/l [mid-level nutrient (MN)] and 10 μmol/l and 1 μmol/l [low nutrient (LN)]. After acclimatization for over 20 generations, no significant differences in growth rates were observed between LC and HC cultures under both HN and LN conditions; whereas, HC significantly reduced the growth rate under MN conditions. Lower nutrient loading significantly inhibited the growth rates of both LC and HC cultures; whereas, HC (but not LC) significantly decreased chlorophyll a and carotenoid contents in LN treatments. HC conditions significantly increased maximum relative electron transport rates (rETRmax) and saturating light intensity (Ik) of HN cultures, with rETRmax showing a positive relationship with growth rates stimulated by nutrient enrichments. The maximum (Fv/Fm) and effective quantum yield (Yield) were all inhibited under LN conditions, with the greatest reduction in Yield observed under LC conditions, corresponding to the highest nonphotochemical quenching, lowest light use efficiency (α) and lowest rETRmax. Based on these results, ocean acidification and nutrient availability may influence photosynthetic performance in T. weissflogii individually or interactively, with the future growth of marine diatoms mediated by these codependent environmental drivers. |
format |
Dataset |
author |
Yang, Yuling Li, Wei Li, Zhenzhen Xu, Juntian |
author_facet |
Yang, Yuling Li, Wei Li, Zhenzhen Xu, Juntian |
author_sort |
Yang, Yuling |
title |
Seawater carbonate chemistry and photosynthetic performance of Thalassiosira (Conticribra) weissflogii (Bacillariophyta) |
title_short |
Seawater carbonate chemistry and photosynthetic performance of Thalassiosira (Conticribra) weissflogii (Bacillariophyta) |
title_full |
Seawater carbonate chemistry and photosynthetic performance of Thalassiosira (Conticribra) weissflogii (Bacillariophyta) |
title_fullStr |
Seawater carbonate chemistry and photosynthetic performance of Thalassiosira (Conticribra) weissflogii (Bacillariophyta) |
title_full_unstemmed |
Seawater carbonate chemistry and photosynthetic performance of Thalassiosira (Conticribra) weissflogii (Bacillariophyta) |
title_sort |
seawater carbonate chemistry and photosynthetic performance of thalassiosira (conticribra) weissflogii (bacillariophyta) |
publisher |
PANGAEA |
publishDate |
2018 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.888942 https://doi.org/10.1594/PANGAEA.888942 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Yang, Yuling; Li, Wei; Li, Zhenzhen; Xu, Juntian (2018): Combined effects of ocean acidification and nutrient levels on the photosynthetic performance of Thalassiosira (Conticribra) weissflogii (Bacillariophyta). Phycologia, 57(2), 121-129, https://doi.org/10.2216/16-127.1 |
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.888942 https://doi.org/10.1594/PANGAEA.888942 |
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.888942 https://doi.org/10.2216/16-127.1 |
_version_ |
1766158132523827200 |