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Tan, Yong Hao; Lim, Phaik Eem; Beardall, John; Poong, Sze Wan; Phang, Siew Moi (2019): Seawater carbonate chemistry and photosynthetic pigments and photophysiology of polar microalga Chlorella sp [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.916160

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Abstract:
Ocean acidification, due to increased levels of anthropogenic carbon dioxide, is known to affect the physiology and growth of marine phytoplankton, especially in polar regions. However, the effect of acidification or carbonation on cellular metabolism in polar marine phytoplankton still remains an open question. There is some evidence that small chlorophytes may benefit more than other taxa of phytoplankton. To understand further how green polar picoplankton could acclimate to high oceanic CO2, studies were conducted on an Antarctic Chlorella sp. Chlorella sp. maintained its growth rate (∼0.180 /day), photosynthetic quantum yield (Fv/Fm = ∼0.69) and chlorophyll a (0.145 fg/cell) and carotenoid (0.06 fg/cell) contents under high CO2, while maximum rates of electron transport decreased and non-photochemical quenching increased under elevated CO2. GCMS-based metabolomic analysis reveal that this polar Chlorella strain modulated the levels of metabolites associated with energy, amino acid, fatty acid and carbohydrate production, which could favour its survival in an increasingly acidified ocean.
Keyword(s):
Bottles or small containers/Aquaria (<20 L); Chlorella sp.; Chlorophyta; Growth/Morphology; Laboratory experiment; Laboratory strains; Not applicable; Phytoplankton; Plantae; Primary production/Photosynthesis; Single species
Supplement to:
Tan, Yong Hao; Lim, Phaik Eem; Beardall, John; Poong, Sze Wan; Phang, Siew Moi (2019): A metabolomic approach to investigate effects of ocean acidification on a polar microalga Chlorella sp. Aquatic Toxicology, 217, 105349, https://doi.org/10.1016/j.aquatox.2019.105349
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2019): seacarb: seawater carbonate chemistry with R. R package version 3.2.12. 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, 2019) 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 2020-05-6.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeLim, Phaik Eemstudy
2SpeciesSpeciesLim, Phaik Eem
3Day of experimentDOEdayLim, Phaik Eem
4TreatmentTreatLim, Phaik Eem
5Cell densityCells#/mlLim, Phaik Eem
6Cell density, standard deviationCells std dev±Lim, Phaik Eem
7Growth rateµ1/dayLim, Phaik Eem
8Growth rate, standard deviationµ std dev±Lim, Phaik Eem
9Chlorophyll a per cellChl a/cellpg/#Lim, Phaik Eem
10Chlorophyll a, standard deviationChl a std dev±Lim, Phaik Eem
11Carotenoids per cellCarotenoids/cellpg/#Lim, Phaik Eem
12Carotenoids, standard deviationCarotenoids std dev±Lim, Phaik Eem
13RatioRatioLim, Phaik Eemchlorophyll a/carotenoid
14Ratio, standard deviationRatio std dev±Lim, Phaik Eemchlorophyll a/carotenoid
15DiameterصmLim, Phaik Eem
16Diameter, standard deviationØ std dev±Lim, Phaik Eem
17Surface areaSAµm2Lim, Phaik Eem
18Surface area, standard deviationSA std dev±Lim, Phaik Eem
19VolumeVolµm3Lim, Phaik Eem
20Cell biovolume, standard deviationCell biovol std dev±Lim, Phaik Eem
21Cell surface area/cell volume ratioCell SA/cell vol1/µmLim, Phaik Eem
22Cell surface area/cell volume, standard deviationCell SA/cell vol std dev±Lim, Phaik Eem
23Photochemical quantum yieldFv/FmLim, Phaik Eem
24Photochemical quantum yield, standard deviationFv/Fm std dev±Lim, Phaik Eem
25Maximum light utilization efficiencyAlphaelectrons/photonsLim, Phaik Eem
26Maximum light utilization efficiency, standard deviationAlpha std dev±Lim, Phaik Eem
27Maximal electron transport rate, relativerETR maxµmol e/m2/sLim, Phaik Eem
28Maximal electron transport rate, relative, standard deviationrETR max std dev±Lim, Phaik Eem
29Non photochemical quenching, maximumNPQ maxLim, Phaik Eem
30Non photochemical quenching, standard deviationNPQ std dev±Lim, Phaik Eem
31Light saturationEkµmol/m2/sLim, Phaik Eem
32Light saturation, standard deviationEk std dev±Lim, Phaik Eem
33Temperature, waterTemp°CLim, Phaik Eem
34SalinitySalLim, Phaik Eem
35Salinity, standard deviationSal std dev±Lim, Phaik Eem
36pHpHLim, Phaik EemPotentiometricNBS scale
37pH, standard deviationpH std dev±Lim, Phaik EemPotentiometricNBS scale
38Alkalinity, totalATµmol/kgLim, Phaik EemPotentiometric titration
39Alkalinity, total, standard deviationAT std dev±Lim, Phaik EemPotentiometric titration
40Carbon, inorganic, dissolvedDICµmol/kgLim, Phaik EemCalculated using CO2SYS
41Carbon, inorganic, dissolved, standard deviationDIC std dev±Lim, Phaik EemCalculated using CO2SYS
42Bicarbonate ion[HCO3]-µmol/kgLim, Phaik EemCalculated using CO2SYS
43Bicarbonate ion, standard deviation[HCO3]- std dev±Lim, Phaik EemCalculated using CO2SYS
44Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmLim, Phaik EemCalculated using CO2SYS
45Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Lim, Phaik EemCalculated using CO2SYS
46Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
47pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)
48Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
49Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
50Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
51Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
52Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
53Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
54Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
55Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2064 data points

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