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Iñiguez, Concepcion; Heinrich, Sandra; Harms, Lars; Gordillo, Francisco J L (2018): Seawater carbonate chemistry and photoinhibition in Desmarestia anceps. PANGAEA, https://doi.org/10.1594/PANGAEA.887648, Supplement to: Iñiguez, C et al. (2017): Increased temperature and CO2 alleviate photoinhibition in Desmarestia anceps: from transcriptomics to carbon utilization. Journal of Experimental Botany, 68(14), 3971-3984, https://doi.org/10.1093/jxb/erx164

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Abstract:
Ocean acidification and warming are affecting polar regions with particular intensity. Rocky shores of the Antarctic Peninsula are dominated by canopy-forming Desmarestiales. This study investigates the physiological and transcriptomic responses of the endemic macroalga Desmarestia anceps to a combination of different levels of temperature (2 and 7 °C), dissolved CO2 (380 and 1000 ppm), and irradiance (65 and 145 µmol photons/m**2/s). Growth and photosynthesis increased at high CO2 conditions, and strongly decreased at 2 °C plus high irradiance, in comparison to the other treatments. Photoinhibition at 2 °C plus high irradiance was evidenced by the photochemical performance and intensive release of dissolved organic carbon. The highest number of differentially regulated transcripts was observed in thalli exposed to 2 °C plus high irradiance. Algal 13C isotopic discrimination values suggested an absence of down-regulation of carbon-concentrating mechanisms at high CO2. CO2 enrichment induced few transcriptomic changes. There was high and constitutive gene expression of many photochemical and inorganic carbon utilization components, which might be related to the strong adaptation of D. anceps to the Antarctic environment. These results suggest that increased temperature and CO2 will allow D. anceps to maintain its productivity while tolerating higher irradiances than at present conditions.
Keyword(s):
Benthos; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (<20 L); Chromista; Desmarestia anceps; Growth/Morphology; Laboratory experiment; Laboratory strains; Light; Macroalgae; Not applicable; Ochrophyta; Other metabolic rates; Primary production/Photosynthesis; Respiration; Single species; Temperature
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloise; 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
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) 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 by seacarb is 2018-03-22.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeIñiguez, Concepcionstudy
2SpeciesSpeciesIñiguez, Concepcion
3Registration number of speciesReg spec noIñiguez, Concepcion
4Uniform resource locator/link to referenceURL refIñiguez, ConcepcionWoRMS Aphia ID
5Experiment durationExp durationdaysIñiguez, Concepcion
6Temperature, waterTemp°CIñiguez, Concepciontreatment
7TreatmentTreatIñiguez, Concepcionlight
8TreatmentTreatIñiguez, ConcepcionpCO2
9Growth rateµ%/dayIñiguez, Concepcion
10Growth rate, standard deviationµ std dev±Iñiguez, Concepcion
11Net photosynthesis rate, oxygenPN O2µmol/g/hIñiguez, Concepcion
12Net photosynthesis rate, standard deviationPN std dev±Iñiguez, Concepcion
13Respiration rate, oxygenResp O2µmol/g/hIñiguez, Concepcion
14Respiration rate, oxygen, standard deviationResp O2 std dev±Iñiguez, Concepcion
15Gross photosynthesis rate, oxygenPG O2µmol/g/hIñiguez, Concepcion
16Gross photosynthesis rate, standard deviationPG std dev±Iñiguez, Concepcion
17Dissolved organic carbon release rateDOC relµmol/g/hIñiguez, Concepcion
18Dissolved organic carbon release rate, standard deviationDOC rel std dev±Iñiguez, Concepcion
19PercentagePerc%Iñiguez, Concepcion% DOC released from assimilated
20Percentage, standard deviationPerc std dev±Iñiguez, Concepcion% DOC released from assimilated
21Inhibition of net photosynthesisInhib NP%Iñiguez, ConcepcionDBS inhibition
22Inhibition of net photosynthesis, standard deviationInhib NP std dev±Iñiguez, ConcepcionDBS inhibition
23Inhibition of net photosynthesisInhib NP%Iñiguez, ConcepcionEZ inhibition
24Inhibition of net photosynthesis, standard deviationInhib NP std dev±Iñiguez, ConcepcionEZ inhibition
25Chlorophyll aChl aµg/gIñiguez, Concepcion
26Chlorophyll a, standard deviationChl a std dev±Iñiguez, Concepcion
27Chlorophyll c1+c2Chl c1+c2µg/gIñiguez, Concepcion
28Chlorophyll c1+c2, standard deviationChl c1+c2 std dev±Iñiguez, Concepcion
29CarotenoidsCarotenoidsµg/gIñiguez, Concepcion
30Carotenoids, standard deviationCarotenoids std dev±Iñiguez, Concepcion
31RatioRatioIñiguez, ConcepcionAccesory pigments/Chl a
32Ratio, standard deviationRatio std dev±Iñiguez, ConcepcionAccesory pigments/Chl a
33Maximal electron transport rateETR maxµmol/m2/sIñiguez, Concepcion
34Maximal electron transport rate, standard deviationETR max std dev±Iñiguez, Concepcion
35Photosynthetic efficiencyalphaµmol electrons/µmol quantaIñiguez, Concepcion
36Photosynthetic efficiency, standard deviationalpha std dev±Iñiguez, Concepcion
37Saturation light intensityEkµmol photons/m2/sIñiguez, Concepcion
38Light saturation, standard deviationEk std dev±Iñiguez, Concepcion
39IrradianceEµmol/m2/sIñiguez, Concepcionat which chronic photoinhibition begins
40Irradiance, standard deviationE std dev±Iñiguez, Concepcionat which chronic photoinhibition begins
41Maximum photochemical quantum yield of photosystem IIFv/FmIñiguez, Concepcion
42Maximum photochemical quantum yield of photosystem II, standard deviationFv/Fm std dev±Iñiguez, Concepcion
43Carbon, totalTC%Iñiguez, Concepcion
44Carbon, total, standard deviationTC std dev±Iñiguez, Concepcion
45Nitrogen, totalTN%Iñiguez, Concepcion
46Nitrogen, total, standard deviationTN std dev±Iñiguez, Concepcion
47Carbon/Nitrogen ratioC/NIñiguez, Concepcion
48Carbon/Nitrogen ratio, standard deviationC/N std dev±Iñiguez, Concepcion
49δ13Cδ13C‰ PDBIñiguez, Concepcion
50δ13C, standard deviationδ13C std dev±Iñiguez, Concepcion
51RatioRatioIñiguez, Concepcionfresh mass/dry mass
52Ratio, standard deviationRatio std dev±Iñiguez, Concepcionfresh mass/dry mass
53SalinitySalIñiguez, Concepcion
54Salinity, standard deviationSal std dev±Iñiguez, Concepcion
55pHpHIñiguez, ConcepcionPotentiometricNBS scale
56pH, standard deviationpH std dev±Iñiguez, ConcepcionPotentiometricNBS scale
57Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmIñiguez, ConcepcionCalculated using CO2calc
58Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Iñiguez, ConcepcionCalculated using CO2calc
59Carbon dioxideCO2µmol/kgIñiguez, ConcepcionCalculated using CO2calc
60Carbon dioxide, standard deviationCO2 std dev±Iñiguez, ConcepcionCalculated using CO2calc
61Bicarbonate ion[HCO3]-µmol/kgIñiguez, ConcepcionCalculated using CO2calc
62Bicarbonate, standard deviation[HCO3]- std dev±Iñiguez, ConcepcionCalculated using CO2calc
63Carbonate ion[CO3]2-µmol/kgIñiguez, ConcepcionCalculated using CO2calc
64Carbonate ion, standard deviation[CO3]2- std dev±Iñiguez, ConcepcionCalculated using CO2calc
65Carbon, inorganic, dissolvedDICµmol/kgIñiguez, ConcepcionCalculated using CO2calc
66Carbon, inorganic, dissolved, standard deviationDIC std dev±Iñiguez, ConcepcionCalculated using CO2calc
67Alkalinity, totalATµmol/kgIñiguez, ConcepcionPotentiometric titration
68Alkalinity, total, standard deviationAT std dev±Iñiguez, ConcepcionPotentiometric titration
69Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
70pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
71Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
72Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
73Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
74Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
75Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
76Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
77Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
78Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Size:
624 data points

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