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Chen, Heng; Guan, WanChun; Zeng, Guoquan; Li, Ping; Chen, Shaobo (2015): Alleviation of solar ultraviolet radiation (UVR)-induced photoinhibition in diatom Chaetoceros curvisetus by ocean acidification [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.849257, Supplement to: Chen, H et al. (2014): Alleviation of solar ultraviolet radiation (UVR)-induced photoinhibition in diatom Chaetoceros curvisetus by ocean acidification. Journal of the Marine Biological Association of the United Kingdom, 95(04), 661-667, https://doi.org/10.1017/S0025315414001568

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Abstract:
The study aimed to unravel the interaction between ocean acidification and solar ultraviolet radiation (UVR) in Chaetoceros curvisetus. Chaetoceros curvisetus cells were acclimated to high CO2 (HC, 1000 ppmv) and low CO2 concentration (control, LC, 380 ppmv) for 14 days. Cell density, specific growth rate and chlorophyll were measured. The acclimated cells were then exposed to PAB (photosynthetically active radiation (PAR) + UV-A + UV-B), PA (PAR + UV-A) or P (PAR) for 60 min. Photochemical efficiency (phi PSII), relative electron transport rate (rETR) and the recovery of PHPSII were determined. HC induced higher cell density and specific growth rate compared with LC. However, no difference was found in chlorophyll between HC and LC. Moreover, phi PSII and rETRs were higher under HC than LC in response to solar UVR. P exposure led to faster recovery of phi PSII, both under HC and LC, than PA and PAB exposure. It appeared that harmful effects of UVR on C. curvisetus could be counteracted by ocean acidification simulated by high CO2 when the effect of climate change is not beyond the tolerance of cells.
Keyword(s):
Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (<20 L); Chaetoceros curvisetus; Chromista; Growth/Morphology; Laboratory experiment; Laboratory strains; Light; North Pacific; Ochrophyta; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.8. https://cran.r-project.org/package=seacarb
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation is 2015-09-09.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1SpeciesSpeciesGuan, WanChun
2TableTabGuan, WanChun
3FigureFigGuan, WanChun
4TreatmentTreatGuan, WanChun
5Incubation durationInc durdaysGuan, WanChun
6pHpHGuan, WanChunNBS scale
7pH, standard deviationpH std dev±Guan, WanChunNBS scale
8Cell densityCells#/mlGuan, WanChun
9Cell density, standard deviationCells std dev±Guan, WanChun
10Chlorophyll a per cellChl a/cellpg/#Guan, WanChun
11Chlorophyll a, standard deviationChl a std dev±Guan, WanChun
12Growth rateµ1/dayGuan, WanChun
13Growth rate, standard deviationµ std dev±Guan, WanChun
14Time in minutesTimeminGuan, WanChunexposure time
15Photochemical efficiencydelta F/Fmarbitrary unitsGuan, WanChun
16Photochemical efficiency, standard deviationdelta F/Fm std dev±Guan, WanChun
17Ultraviolet radiation-induced inhibition of effective photochemical quantum yieldUVR inhib Fv/Fm%Guan, WanChun
18Ultraviolet radiation-induced inhibition of effective photochemical quantum yield, standard deviationUVR inhib Fv/Fm std dev±Guan, WanChun
19IrradianceEµmol/m2/sGuan, WanChun
20Electron transport rate, relativerETRµmol e/m2/sGuan, WanChun
21Electron transport rate, relative, standard deviationrETR std dev±Guan, WanChun
22RatioRatioGuan, WanChunrETR ratio (LC:HC)
23Ratio, standard deviationRatio std dev±Guan, WanChunrETR ratio (LC:HC)
24Time in minutesTimeminGuan, WanChunrecovery time
25Initial slope of rapid light curvealphaµmol electrons/µmol quantaGuan, WanChun
26Initial slope of rapid light curve, standard deviationalpha std dev±Guan, WanChun
27Maximal electron transport rate, relativerETR maxµmol e/m2/sGuan, WanChun
28Maximal electron transport rate, relative, standard deviationrETR max std dev±Guan, WanChun
29Light saturationEkµmol/m2/sGuan, WanChun
30Light saturation, standard deviationEk std dev±Guan, WanChun
31Temperature, waterTemp°CGuan, WanChun
32SalinitySalGuan, WanChun
33pHpHGuan, WanChunNBS scale
34pH, standard deviationpH std dev±Guan, WanChunNBS scale
35Carbon, inorganic, dissolvedDICµmol/kgGuan, WanChun
36Carbon, inorganic, dissolved, standard deviationDIC std dev±Guan, WanChun
37Bicarbonate ion[HCO3]-µmol/kgGuan, WanChun
38Bicarbonate ion, standard deviation[HCO3]- std dev±Guan, WanChun
39Carbonate ion[CO3]2-µmol/kgGuan, WanChun
40Carbonate ion, standard deviation[CO3]2- std dev±Guan, WanChun
41Carbon dioxideCO2µmol/kgGuan, WanChun
42Carbon dioxide, standard deviationCO2 std dev±Guan, WanChun
43Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
44pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
45Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
46Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
47Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
48Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
49Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
50Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
51Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
52Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
5319 data points

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