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Scartazza, Andrea; Moscatello, Stefano; Gavrichkova, Olga; Buia, Maria-Cristina; Lauteri, Marco; Battistelli, Alberto; Lorenti, Maurizio; Garrard, Samantha Laird; Calfapietra, Carlo; Brugnoli, Enrico (2017): Seawater carbonate chemistry and carbon and nitrogen allocation strategy in Posidonia oceanica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.890444, Supplement to: Scartazza, A et al. (2017): Carbon and nitrogen allocation strategy in Posidonia oceanica is altered by seawater acidification. Science of the Total Environment, 607-608, 954-964, https://doi.org/10.1016/j.scitotenv.2017.06.084

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Abstract:
Rising atmospheric CO2 causes ocean acidification that represents one of the major ecological threats for marine biota. We tested the hypothesis that long-term exposure to increased CO2 level and acidification in a natural CO2 vent system alters carbon (C) and nitrogen (N) metabolism in Posidonia oceanica L. (Delile), affecting its resilience, or capability to restore the physiological homeostasis, and the nutritional quality of organic matter available for grazers. Seawater acidification decreased the C to N ratio in P. oceanica tissues and increased grazing rate, shoot density, leaf proteins and asparagine accumulation in rhizomes, while the maximum photochemical efficiency of photosystem II was unaffected. The 13C-dilution in both structural and non-structural C metabolites in the acidified site indicated quali-quantitative changes of C source and/or increased isotopic fractionation during C uptake and carboxylation associated with the higher CO2 level. The decreased C:N ratio in the acidified site suggests an increased N availability, leading to a greater storage of 15N-enriched compounds in rhizomes. The amount of the more dynamic C storage form, sucrose, decreased in rhizomes of the acidified site in response to the enhanced energy demand due to higher shoot recruitment and N compound synthesis, without affecting starch reserves. The ability to modulate the balance between stable and dynamic C reserves could represent a key ecophysiological mechanism for P. oceanica resilience under environmental perturbation. Finally, alteration in C and N dynamics promoted a positive contribution of this seagrass to the local food web.
Keyword(s):
Benthos; Biomass/Abundance/Elemental composition; CO2 vent; Coast and continental shelf; Field observation; Mediterranean Sea; Mediterranean Sea; Plantae; Posidonia oceanica; Seagrass; Single species; Temperate; Tracheophyta
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Latitude: 40.730170 * Longitude: 13.966330
Event(s):
Ischia_OA * Latitude: 40.730170 * Longitude: 13.966330 * Method/Device: Experiment (EXP)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 TypeTypeScartazza, Andreastudy
2 SpeciesSpeciesScartazza, Andrea
3 Registration number of speciesReg spec noScartazza, Andrea
4 Uniform resource locator/link to referenceURL refScartazza, AndreaWoRMS Aphia ID
5 TreatmentTreatScartazza, Andrea
6 ReplicateReplScartazza, Andrea
7 LocationLocationScartazza, Andrea
8 StarchStarchmg/gScartazza, Andreaper dry mass
9 Starch, standard errorStarch std e±Scartazza, Andreaper dry mass
10 Sucrose per dry massSucrose/dmmg/gScartazza, Andrea
11 Sucrose, standard errorSucrose std e±Scartazza, Andrea
12 Carbohydrates, non structuralNSCmg/gScartazza, Andreaper dry mass
13 Carbohydrates, non structural, standard errorNSC std e±Scartazza, Andreaper dry mass
14 Lignin per dry massLignin/dmmg/gScartazza, Andrea
15 Lignin, standar errorLignin std e±Scartazza, Andrea
16 Holocellulose per dry massHolocellulose/dmmg/gScartazza, Andrea
17 Holocellulose, standard errorHolocellulose std e±Scartazza, Andrea
18 δ13Cδ13C‰ PDBScartazza, AndreaStarch
19 δ13C, standard errorδ13C std e±Scartazza, AndreaStarch
20 δ13Cδ13C‰ PDBScartazza, AndreaSucrose
21 δ13C, standard errorδ13C std e±Scartazza, AndreaSucrose
22 δ13Cδ13C‰ PDBScartazza, AndreaCarbohydrates, non structural
23 δ13C, standard errorδ13C std e±Scartazza, AndreaCarbohydrates, non structural
24 δ13Cδ13C‰ PDBScartazza, AndreaLignin
25 δ13C, standard errorδ13C std e±Scartazza, AndreaLignin
26 δ13Cδ13C‰ PDBScartazza, AndreaHolocellulose
27 δ13C, standard errorδ13C std e±Scartazza, AndreaHolocellulose
28 Proteins, solubleProtein solmg/gScartazza, Andreaper dry mass
29 Proteins, soluble, standard errorProtein sol std e±Scartazza, Andrea
30 Proteins, totalTPRTµg/gScartazza, Andrea
31 Proteins, total, standard errorTPRT std e±Scartazza, Andrea
32 Glutamic acid per dry massGlu/dmmg/gScartazza, Andrea
33 Glutamic acid, standard errorGlu std e±Scartazza, Andrea
34 Glutamine per dry massGln/dmmg/gScartazza, Andrea
35 Glutamine per dry mass, standard errorGln std e±Scartazza, Andrea
36 Asparagine per dry massAsn/dmmg/gScartazza, Andrea
37 Asparagine per dry mass, standard errorAsn std e±Scartazza, Andrea
38 Nitrogen, per dry massN dmmg/gScartazza, Andrea
39 Nitrogen content per dry mass, standard errorN dm std e±Scartazza, Andrea
40 δ15Nδ15N‰ airScartazza, Andrea
41 δ15N, standard errorδ15N std e±Scartazza, Andrea
42 δ15Nδ15N‰ airScartazza, Andreatotal proteins
43 δ15N, standard errorδ15N std e±Scartazza, Andreatotal proteins
44 Shoot densityShoot den#/m2Scartazza, Andrea
45 Shoot density, standard errorShoot den std e±Scartazza, Andrea
46 CarbonC%Scartazza, Andrea
47 Carbon, standard errorC std e±Scartazza, Andrea
48 Nitrogen, totalTN%Scartazza, Andrea
49 Nitrogen, standard errorN std e±Scartazza, Andrea
50 Carbon/Nitrogen ratioC/NScartazza, Andrea
51 Carbon/Nitrogen ratio, standard errorC/N std e±Scartazza, Andrea
52 Asparagine per dry massAsn/dmmg/gScartazza, Andrea
53 Sucrose per dry massSucrose/dmmg/gScartazza, Andrea
54 Nitrogen, per dry massN dmmg/gScartazza, Andrea
55 pHpHScartazza, AndreaNBS scale
56 pH, standard deviationpH std dev±Scartazza, AndreaNBS scale
57 Alkalinity, totalATµmol/kgScartazza, Andrea
58 Alkalinity, total, standard deviationAT std dev±Scartazza, Andrea
59 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmScartazza, Andrea
60 Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Scartazza, Andrea
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
414 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Type
(study)		2 
Species		3 
Reg spec no		4 
URL ref
(WoRMS Aphia ID)		5 
Treat		6 
Repl		7 
Location		8 
Starch [mg/g]
(per dry mass)		9 
Starch std e [±]
(per dry mass)		10 
Sucrose/dm [mg/g]		11 
Sucrose std e [±]		12 
NSC [mg/g]
(per dry mass)		13 
NSC std e [±]
(per dry mass)		14 
Lignin/dm [mg/g]		15 
Lignin std e [±]		16 
Holocellulose/dm [mg/g]		17 
Holocellulose std e [±]		18 
δ13C [‰ PDB]
(Starch)		19 
δ13C std e [±]
(Starch)		20 
δ13C [‰ PDB]
(Sucrose)		21 
δ13C std e [±]
(Sucrose)		22 
δ13C [‰ PDB]
(Carbohydrates, non structural)		23 
δ13C std e [±]
(Carbohydrates, non structural)		24 
δ13C [‰ PDB]
(Lignin)		25 
δ13C std e [±]
(Lignin)		26 
δ13C [‰ PDB]
(Holocellulose)		27 
δ13C std e [±]
(Holocellulose)		28 
Protein sol [mg/g]
(per dry mass)		29 
Protein sol std e [±]		30 
TPRT [µg/g]		31 
TPRT std e [±]		32 
Glu/dm [mg/g]		33 
Glu std e [±]		34 
Gln/dm [mg/g]		35 
Gln std e [±]		36 
Asn/dm [mg/g]		37 
Asn std e [±]		38 
N dm [mg/g]		39 
N dm std e [±]		40 
δ15N [‰ air]		41 
δ15N std e [±]		42 
δ15N [‰ air]
(total proteins)		43 
δ15N std e [±]
(total proteins)		44 
Shoot den [#/m2]		45 
Shoot den std e [±]		46 
C [%]		47 
C std e [±]		48 
TN [%]		49 
N std e [±]		50 
C/N		51 
C/N std e [±]		52 
Asn/dm [mg/g]		53 
Sucrose/dm [mg/g]		54 
N dm [mg/g]		55 
pH
(NBS scale)		56 
pH std dev [±]
(NBS scale)		57 
AT [µmol/kg]		58 
AT std dev [±]		59 
pCO2water_SST_wet [µatm]		60 
pCO2 std dev [±]
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN1 controlRhizome165.200012.4400181.100017.2300346.30007.5500-15.07000.2600-14.1600.2500-14.520.09010.631.083663044602.720.212.490.4025.36303.532023.34592.09506.49850.35356.190.3931.30.91.40.126.00.88.130.0525404048469
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN1 controlLeaf24.38382.8430159.317728.6730183.701518.8490200.90.3256.915.6-15.07000.2560-14.1600.2550-14.300.186-16.830.44-14.680.4811.541.71135307601.370.122.77430.833314.08950.46875.36000.28004.610.1638.30.52.30.219.91.88.130.0525404048469
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN3 acidifiedRhizome138.31447.6510115.111011.5790253.425413.6190-17.61150.3799-16.9250.5773-17.260.6308.401.203271032702.370.222.000.3746.36303.792039.37472.10526.96580.11426.920.2630.41.21.70.121.61.47.820.3625702015091906
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN3 acidifiedLeaf13.46570.6821160.445022.9815173.910722.6421211.810.4273.415.5-17.61000.5370-17.1200.7120-17.180.695-20.100.34-16.990.4013.370.961889021501.230.044.07070.702216.62630.82775.46680.08714.480.2138.10.53.90.211.50.77.820.3625702015091906
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN1 control371.923.88.130.0525404048469
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN3 acidified587.026.97.820.3625702015091906
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN1 control1Rhizome37.441111.548529.23318.130.0525404048469
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN1 control2Rhizome18.044225.667219.61348.130.0525404048469
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN1 control3Rhizome14.802181.241512.88678.130.0525404048469
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN1 control4Rhizome23.914160.368221.22818.130.0525404048469
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN1 control5Rhizome33.169186.332625.39908.130.0525404048469
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN1 control6Rhizome24.805221.460922.92168.130.0525404048469
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN3 acidified1Rhizome50.355113.161235.16707.820.3625702015091906
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN3 acidified2Rhizome53.91361.601842.58747.820.3625702015091906
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN3 acidified3Rhizome28.821186.352532.87787.820.3625702015091906
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN3 acidified4Rhizome52.018106.932147.26827.820.3625702015091906
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN3 acidified5Rhizome45.859109.527539.41107.820.3625702015091906
FieldPosidonia oceanica (seagrass)145794marinespecies.orgN3 acidified6Rhizome47.094113.090629.88267.820.3625702015091906