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Burýšková, Barbora; Weinberger, Florian (2019): Settlement and division rates of two yeasts on different extracts from eelgrass (Zostera marina). PANGAEA, https://doi.org/10.1594/PANGAEA.897495, Supplement to: Papazian, Stefano; Parrot, Delphine; Burýšková, Barbora; Weinberger, Florian; Tasdemir, Deniz (2019): Surface chemical defence of the eelgrass Zostera marina against microbial foulers. Scientific Reports, 9(1), https://doi.org/10.1038/s41598-019-39212-3

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Abstract:
Dose-response experiments for yeast growth or settlement were conducted in 96-well plates impregnated with eelgrass extracts Concentrations of leaf surface extracts were related to naturally occurring concentrations on Z. marina surfaces assuming a leaf area / fresh-weight ratio of 78.99 cm2*g-1. Correspondingly, a 1-fold natural concentration of surface extract was tested when extract obtained from 0.955 cm² leaf surface was impregnated onto 0.955 cm² well surface. Concentrations of tissue extracts were dosed based on the assumption of a dry-weight / fresh-weight proportion of 10%. Correspondingly, a 1-fold natural concentration of tissue extract was tested when extract obtained from 10 mg dry weight was present in the final volume of 100 µl. The yeasts were maintained at 25°C on a shaker in liquid medium containing: 3 g of yeast extract, 3 g of malt extract, 5 g of peptone, 10 g of glucose, and sea salt 3%.
For settlement assays aliquots of yeast liquid cultures were pipetted into the wells. After 2 h, the wells were emptied and cells attached to the walls were stained with Calcofluor white for 10 min. The unattached cells and the excess dye were removed by rinsing with sterile seawater, and the fluorescence of stained cells attached to the wells was measured at 350 nm excitation and 430 nm emission.
For growth bioassays, 100 µl medium containing yeast cells at 0.07-0.17 initial OD610 were pipetted into the wells. Plates were incubated at 25°C on a shaker in darkness and OD610 was repeatedly measured over 20 h. Exponential growth curves were fitted with the GraphPad Prism 5.0 software package to OD data time series obtained for each well allowing determination of division rates. Division rates obtained for single wells with addition of compounds were then related to mean division rates obtained for six control wells without such addition.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
SpeciesSpeciesWeinberger, Florian
ExtractExtractWeinberger, FlorianType of extract from Zostera marina tested
Surface concentrationSurf concµg/cm2Weinberger, FlorianSurface concentration of extract tested
Concentration parameterConc paramWeinberger, Florian-fold concentration related to surface area
RatioRatioWeinberger, FlorianOptical density measurements (wave length 600 nm)log(treatment/control); Tendency of D. hansenii for settlement on Zostera extract, relative to settlement on control, replicate 1
RatioRatioWeinberger, FlorianOptical density measurements (wave length 600 nm)log(treatment/control); Tendency of D. hansenii for settlement on Zostera extract, relative to settlement on control, replicate 2
RatioRatioWeinberger, FlorianOptical density measurements (wave length 600 nm)log(treatment/control); Tendency of D. hansenii for settlement on Zostera extract, relative to settlement on control, replicate 3
RatioRatioWeinberger, FlorianOptical density measurements (wave length 600 nm)log(treatment/control); Tendency of D. hansenii for settlement on Zostera extract, relative to settlement on control, replicate 4
RatioRatioWeinberger, FlorianOptical density measurements (wave length 600 nm)log(treatment/control); Tendency of D. hansenii for settlement on Zostera extract, relative to settlement on control, replicate 5
10 RatioRatioWeinberger, FlorianOptical density measurements (wave length 600 nm)log(treatment/control); Tendency of D. hansenii for settlement on Zostera extract, relative to settlement on control, replicate 6
11 Division rateDiv rate%Weinberger, FlorianOptical density measurements (wave length 600 nm)Division rate of D. hansenii on Zostera extract, relative to division rate on control, replicate 1
12 Division rateDiv rate%Weinberger, FlorianOptical density measurements (wave length 600 nm)Division rate of D. hansenii on Zostera extract, relative to division rate on control, replicate 2
13 Division rateDiv rate%Weinberger, FlorianOptical density measurements (wave length 600 nm)Division rate of C. fonsecae on Zostera extract, relative to division rate on control, replicate 1
14 Division rateDiv rate%Weinberger, FlorianOptical density measurements (wave length 600 nm)Division rate of C. fonsecae on Zostera extract, relative to division rate on control, replicate 2
Size:
414 data points

Data

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Species

Extract
(Type of extract from Zostera ...)

Surf conc [µg/cm2]
(Surface concentration of extr...)

Conc param
(-fold concentration related t...)

Ratio
(log(treatment/control); Tende...)

Ratio
(log(treatment/control); Tende...)

Ratio
(log(treatment/control); Tende...)

Ratio
(log(treatment/control); Tende...)

Ratio
(log(treatment/control); Tende...)
10 
Ratio
(log(treatment/control); Tende...)
11 
Div rate [%]
(Division rate of D. hansenii ...)
12 
Div rate [%]
(Division rate of D. hansenii ...)
13 
Div rate [%]
(Division rate of C. fonsecae ...)
14 
Div rate [%]
(Division rate of C. fonsecae ...)
Zostera marinaWhole leaf25.0001.4105-0.650-1.061-0.807-0.898-1.053-1.302114.6107.3114.6107.3
Zostera marinaWhole leaf7.5000.4231-0.731-0.557-0.312-1.263-0.547-0.61698.4110.098.4110.0
Zostera marinaWhole leaf2.5000.14100.149-0.644-0.222-0.299-1.028-0.94797.289.797.289.7
Zostera marinaWhole leaf0.7500.0423-0.0600.0000.1450.176-0.175-0.45299.7106.599.7106.5
Zostera marinaWhole leaf0.2500.01410.0030.003-0.1770.069-0.363-0.076100.794.4100.794.4
Zostera marinaWhole leaf0.0750.0042-0.118-0.224-0.0370.202-0.2170.22392.498.792.498.7
Zostera marinaWhole leaf0.0250.0014-0.3800.1050.2360.011-0.0390.08193.691.193.691.1
Zostera marinaWhole leaf - surface25.0001.41050.347-0.171-0.454-0.916-0.568-0.40099.4101.0104.699.9
Zostera marinaWhole leaf - surface7.5000.4231-0.475-0.220-0.528-0.653-0.030-0.179102.296.0106.581.5
Zostera marinaWhole leaf - surface2.5000.1410-0.204-0.934-0.257-0.384-0.082-0.850114.1110.4113.699.9
Zostera marinaWhole leaf - surface0.7500.0423-0.1290.046-0.128-0.378-0.260-0.266108.8105.6111.1
Zostera marinaWhole leaf - surface0.2500.01410.2750.173-0.2360.1910.4430.30896.2100.586.186.9
Zostera marinaWhole leaf - surface0.0750.00420.1620.0310.1430.1430.0490.18098.098.592.9
Zostera marinaWhole leaf - surface0.0250.0014-0.1130.0170.1790.1980.319-0.06099.6107.999.595.7
Zostera marinaSurface25.0002.3076-0.3620.168-0.224-1.552-0.721-0.79899.4106.167.977.3
Zostera marinaSurface7.5000.6923-0.850-0.050-0.637-0.146-0.753-0.511102.9101.275.3
Zostera marinaSurface2.5000.2307-0.1150.225-0.2210.292-0.778-0.29898.2109.889.7106.7
Zostera marinaSurface0.7500.06920.0660.087-0.325-0.1980.0580.005104.9100.2112.199.5
Zostera marinaSurface0.2500.0230-0.1340.091-0.1380.023-0.1350.075100.198.399.8101.6
Zostera marinaSurface0.0750.0069-0.099-0.168-0.2300.089-0.126-0.056102.999.9108.1100.2
Zostera marinaSurface0.0250.0023-0.178-0.035-0.1150.2040.134-0.06294.6101.6113.3111.8
Zostera marinaC18 surface25.0009.78260.164-0.266-0.038-0.1130.2300.04299.797.189.795.4
Zostera marinaC18 surface7.5002.9347-0.3490.332-0.3080.2530.1980.049102.6103.899.197.3
Zostera marinaC18 surface2.5000.9782-0.202-0.357-0.331-0.218-0.266-0.206100.698.5114.197.3
Zostera marinaC18 surface0.7500.29340.111-0.1430.032-0.0140.1180.04099.193.4111.0
Zostera marinaC18 surface0.2500.09780.0010.0830.116-0.0580.0580.16299.6109.8112.6
Zostera marinaC18 surface0.0750.02930.045-0.041-0.0080.1310.0610.13396.995.6106.2109.6
Zostera marinaC18 surface0.0250.0097-0.329-0.173-0.230-0.0320.028-0.164108.3103.3112.9114.2
Zostera marinaC18 surface0.0080.0029-0.349-0.162-0.117-0.0950.0000.206107.8105.489.197.3
Zostera marinaC18 surface0.0030.0009-0.197-0.121-0.157-0.104-0.1560.033110.5108.197.3