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Guan, Chi; Weinberger, Florian (2019): Seasonal dynamics in the chemical defence of eelgrass against microfoulers. PANGAEA, https://doi.org/10.1594/PANGAEA.899567, Supplement to: Guan, Chi; Saha, Mahasweta; Weinberger, Florian (2019): Chemical Defence of a Seagrass against Microfoulers and Its Seasonal Dynamics. Applied Sciences, 9(6), 1258, https://doi.org/10.3390/app9061258

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Abstract:
We assessed the seasonality of bacterial settlement pressure, defense against microsettlers and concentrations of a previously identified defense compound, Rosmarinic acid, on surfaces of the eelgrass Zostera marina, sampled monthly at four plots in the Kiel Fjord (SW Baltic Sea). Water temperature, salinity, nutrient concentrations in water and light intensity were also measured, as well as photosynthetically active radiation.
Keyword(s):
chemical defense; Fouling; Rosmarinic acid; Zostera marina
Coverage:
Latitude: 54.393861 * Longitude: 10.190456
Date/Time Start: 2015-05-01T00:00:00 * Date/Time End: 2015-11-30T00:00:00
Minimum Elevation: -1.4 m * Maximum Elevation: -0.6 m
Event(s):
Kiel_Falckenstein_Z.marina * Latitude: 54.393861 * Longitude: 10.190456 * Date/Time Start: 2015-05-01T00:00:00 * Date/Time End: 2015-11-30T00:00:00 * Elevation Start: -0.6 m * Elevation End: -1.4 m * Method/Device: Sampling by hand (HAND)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Sampling dateSampling dateGuan, Chi
2PlotPlotGuan, Chi
3SpeciesSpeciesGuan, Chi
4BacteriaBactGuan, ChiFluorescence after DNA stainingDensity of bacteria on Zostera leaf surface per 0.2 cm2
5BacteriaBactGuan, ChiFluorescence after DNA stainingFouling pressure, Density of bacteria on glass slides per 0.2 cm2
6RatioRatio%Guan, ChiDensity of bacteria on Zostera relative to density of bacteria on glass slides
7Defense strengthDefense strGuan, ChiOptical density measurementslog(treatment/control); Tendency of B. aquimaris for settlement on Zostera extract, relative to settlement on control
8Defense strengthDefense strGuan, ChiOptical density measurementslog(treatment/control); Tendency of A. stellipolaris for settlement on Zostera extract, relative to settlement on control
9Defense strengthDefense strGuan, ChiOptical density measurementslog(treatment/control); Tendency of L. rosea for settlement on Zostera extract, relative to settlement on control
10Defense strengthDefense strGuan, ChiOptical density measurementslog(treatment/control); Tendency of P. dokdonensis for settlement on Zostera extract, relative to settlement on control
11Defense strengthDefense strGuan, Chilog(treatment/control); Mean tendency of 4 bacteria for settlement on Zostera extract, relative to settlement on control
12Rosmarinic acidC18H16O8µg/mlGuan, ChiHigh Performance Liquid Chromatography (HPLC)
13Temperature, waterTemp°CBSHCTD
14Radiation, photosynthetically activePARµmol/m2/sGuan, ChiRadiometer (RM)provided by GEOMAR meteorology department; unit relates to photons
15SalinitySalBSHCTD
16Nitrate[NO3]-µmol/lGuan, ChiPhotometric assay
17Nitrite[NO2]-µmol/lGuan, ChiPhotometric assay
18Ammonium[NH4]+µmol/lGuan, ChiPhotometric assay
19Phosphate[PO4]3-µmol/lGuan, ChiPhotometric assay
Size:
516 data points

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