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Rautenberger, Ralf; Fernández, Pamela A; Strittmatter, Martina; Heesch, Svenja; Cornwall, Christopher Edward; Hurd, Catriona L; Roleda, Michael Y (2015): Saturating light and not increased carbon dioxide under ocean acidification drives photosynthesis and growth in Ulva rigida (Chlorophyta) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.846484, Supplement to: Rautenberger, R et al. (2015): Saturating light and not increased carbon dioxide under ocean acidification drives photosynthesis and growth in Ulva rigida (Chlorophyta). Ecology and Evolution, 5(4), 874-888, https://doi.org/10.1002/ece3.1382

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Published: 2015-05-27 • DOI registered: 2015-06-24

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Abstract:
Carbon physiology of a genetically identified Ulva rigida was investigated under different CO2(aq) and light levels. The study was designed to answer whether (1) light or exogenous inorganic carbon (Ci) pool is driving growth; and (2) elevated CO2(aq) concentration under ocean acidification (OA) will downregulate CAext-mediated inline image dehydration and alter the stable carbon isotope (delta13C) signatures toward more CO2 use to support higher growth rate. At pHT 9.0 where CO2(aq) is <1 ?mol/L, inhibition of the known inline image use mechanisms, that is, direct inline image uptake through the AE port and CAext-mediated inline image dehydration decreased net photosynthesis (NPS) by only 56-83%, leaving the carbon uptake mechanism for the remaining 17-44% of the NPS unaccounted. An in silico search for carbon-concentrating mechanism elements in expressed sequence tag libraries of Ulva found putative light-dependent inline image transporters to which the remaining NPS can be attributed. The shift in delta13C signatures from -22 per mil toward -10 per mil under saturating light but not under elevated CO2(aq) suggest preference and substantial inline image use to support photosynthesis and growth. U. rigida is Ci saturated, and growth was primarily controlled by light. Therefore, increased levels of CO2(aq) predicted for the future will not, in isolation, stimulate Ulva blooms.
Keyword(s):
Benthos; Bottles or small containers/Aquaria (<20 L); Chlorophyta; Coast and continental shelf; Growth/Morphology; Laboratory experiment; Light; Macroalgae; Other metabolic rates; Plantae; Primary production/Photosynthesis; Single species; South Pacific; Temperate; Ulva rigida
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.6. https://cran.r-project.org/package=seacarb
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Latitude: -45.800000 * Longitude: 170.700000
Date/Time Start: 2011-10-05T00:00:00 * Date/Time End: 2011-10-05T00:00:00
Event(s):
Otago_Harbour * Latitude: -45.800000 * Longitude: 170.700000 * Date/Time: 2011-10-05T00:00:00 * Method/Device: Experiment (EXP)
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 2015-05-21.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1SpeciesSpeciesRoleda, Michael Y
2FigureFigRoleda, Michael Y
3TreatmentTreatRoleda, Michael YLL=limiting light, SL=saturating light, HC=high CO2/low pH, LC=low CO2/high pH
4ReplicateReplRoleda, Michael Y
5Inhibition of net photosynthesisInhib NP%Roleda, Michael Y
6Growth rateµ%/dayRoleda, Michael Y
7Carbonic anhydrase activityCA activityREA/gRoleda, Michael Yexternal
8Carbonic anhydrase activityCA activityREA/gRoleda, Michael Yinternal
9δ13Cδ13C‰ PDBRoleda, Michael Y
10SalinitySalRoleda, Michael Y
11Temperature, waterTemp°CRoleda, Michael Y
12Temperature, water, standard deviationTemp std dev±Roleda, Michael Y
13Alkalinity, totalATµmol/kgRoleda, Michael YPotentiometric titration
14Alkalinity, total, standard deviationAT std dev±Roleda, Michael YPotentiometric titration
15Carbon, inorganic, dissolvedDICµmol/kgRoleda, Michael YCalculated using SWCO2 (Hunter, 2007)
16Carbon, inorganic, dissolved, standard deviationDIC std dev±Roleda, Michael YCalculated using SWCO2 (Hunter, 2007)
17Carbon dioxideCO2µmol/kgRoleda, Michael YCalculated using SWCO2 (Hunter, 2007)
18Carbon dioxide, standard deviationCO2 std dev±Roleda, Michael YCalculated using SWCO2 (Hunter, 2007)
19Bicarbonate ion[HCO3]-µmol/kgRoleda, Michael YCalculated using SWCO2 (Hunter, 2007)
20Bicarbonate ion, standard deviation[HCO3]- std dev±Roleda, Michael YCalculated using SWCO2 (Hunter, 2007)
21Carbonate ion[CO3]2-µmol/kgRoleda, Michael YCalculated using SWCO2 (Hunter, 2007)
22Carbonate ion, standard deviation[CO3]2- std dev±Roleda, Michael YCalculated using SWCO2 (Hunter, 2007)
23Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmRoleda, Michael YCalculated using SWCO2 (Hunter, 2007)
24Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Roleda, Michael YCalculated using SWCO2 (Hunter, 2007)
25pH, total scalepHTRoleda, Michael YPotentiometrictotal scale
26pH, standard deviationpH std dev±Roleda, Michael YPotentiometrictotal scale
27Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
28Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
30Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
31Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
32Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
33Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
34Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
35Calcite 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:
2344 data points

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