Climate change and carbon gain in Antarctic mosses - Drying Responses

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Identification_Information:
Citation:
Citation_Information:
Originator: Stanton, D., Merlin, M., Ball, M. and Bryant, G.
Publication_Date: Unknown
Title: Climate change and carbon gain in Antarctic mosses - Drying Responses
Edition:
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Series_Information:
Series_Name: CAASM Metadata
Issue_Identification:
Publication_Information:
Publication_Place:
Publisher: Australian Antarctic Data Centre
Other_Citation_Details:
Online_Linkage: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD/AU/AAS_2780_dryingresponse
Description:
Abstract:
We compared the drying responses of clumps of moss from Casey Station, Antarctica, evaluating the changes in mass, water content, photosynthesis (measured by chlorophyll fluorescence), cellular solute concentration (measured by differential scanning calorimetry) and cellular dimensions. Drying was performed at different temperatures and VPDs to evaluate the relative impacts of temperature and humidity on moss physiology. This dataset is comprised of several spreadsheets (all in comma separated values format). The primary data sheet (Moss-desiccation tolerance Master Datasheet.csv) compiles the overall experimental data, including means derived from several other data sheets. Moss-fluorescence Datasheet.csv reports data from Walz MaxiPAM chlorophyll fluorescence measurements of moss clumps at each timepoint. Moss-fluorescence micro Datasheet.csv reports data from Walz Microscope PAM chlorophyll fluorescence measurements of individual leaves and shoots sampled at each timepoint and kept under oil to retain hydration. Moss-meas Datasheet.csv reports the dimensions (area, perimeter, length and width) of cells from individual leaves sampled at each timepoint and kept under oil to retain hydration. Solute concentration of the shoots was determined by performing differential scanning calorimetry (DSC) on shoots sampled at each timepoint. To convert the melting/freezing points measured to concentrations requires calibration, the data for which are provided in Moss-DSC calib.csv. The data are laid out with columns for each variable considered, and rows for each sample. The columns for each spreadsheet are as follows: Moss-desiccation tolerance Master Datasheet.csv: Date-date of experiment Run-experimental run (1 to 18) ClumpSp-dominant species of moss clump: C-Ceratodon purpureus; S- Schistidium antarctici; BC- Bryum pseudotriquetrum and Ceratodon purpureus codominant Species-species of shoot examined in calorimetry/microscopy: B- Bryum pseudotriquetrum; C-Ceratodon purpureus; S- Schistidium antarctici Replicate-replicate (here equal to Run) Pseudoreplicates-replicates of the same species during the same run Temp-Treatment temperature: 8 degrees C, 16 degrees C or 24 degrees C VPD-Vapour pressure differential of treatment: 0.2kPa, 0.5kPa or 1.2kPa Timepoint-Sampling timepoint (0 = initial conditions) Time-Time in hours since start of experimental run Treatment-Experimental phase: Drying, Recovery (rehydration following drying process), ReRun (second round of drying following recovery) Basket mass-Mass in grams of basket containing moss clump Basket + moss mass-Mass in grams of basket and moss sample Fresh mass-Fresh mass in grams of moss clump (calculated) Dry mass-Mass in grams of oven-dried moss clump RWC-Relative water content of moss clump in g water per g dry mass Percentage of initial RWC-Relative water content as a percentage of initial RWC Mean Fo-Mean Fo of clump (from Moss-fluorescence Datasheet.csv) Sd Fo-Standard deviation of the Fo of the clump (from Moss-fluorescence Datasheet.csv) Mean Fm-Mean Fo of clump (from Moss-fluorescence Datasheet.csv) Sd Fm-Standard deviation of the Fo of the clump (from Moss-fluorescence Datasheet.csv) Mean Fv.Fm-Mean Fo of clump (from Moss-fluorescence Datasheet.csv) Sd Fv.Fm-Standard deviation of the Fo of the clump (from Moss-fluorescence Datasheet.csv) Mean Fo'-Mean Fo of clump (from Moss-fluorescence Datasheet.csv) Sd Fo'-Standard deviation of the Fo of the clump (from Moss-fluorescence Datasheet.csv) Mean Fm'-Mean Fo of clump (from Moss-fluorescence Datasheet.csv) Sd Fm'-Standard deviation of the Fo of the clump (from Moss-fluorescence Datasheet.csv) Tin mass-Mass in grams of the empty calorimetry tin Tin + moss wet mass-Mass in grams of moss shoot and calorimetry tin Tin + moss dry mass-Mass in grams of oven-dried moss shoot and calorimetry tin RWC stems DSC-Relative water content of shoot used for calorimetry in g water per g dry mass Tm-1-Melting point in uncorrected degrees C of shoot water (first replicate) PeakT1-Melting peak in uncorrected degrees C of shoot water (first replicate) Peak1Area-Area of melting peak in DSC units (first replicate) Tm-2-Melting point in uncorrected degrees C of shoot water (second replicate) PeakT2-Melting peak in uncorrected degrees C of shoot water (second replicate) Peak2Area-Area of melting peak in DSC units (first replicate) Tm-3-Melting point in uncorrected degrees C of shoot water (third replicate) PeakT3-Melting peak in uncorrected degrees C of shoot water (third replicate) Peak3Area-Area of melting peak in DSC units (first replicate) Tm-mean-Mean melting point in uncorrected degrees C of shoot water -see Calibs.csv for conversion to solute concentration PeakT-mean-Mean melting peak in uncorrected degrees C of shoot water -see Calibs.csv for conversion to solute concentration PeakArea-mean-Mean area of melting peak in DSC units -see Calibs.csv for conversion to water mass Tm-corr-Melting point of shoot water, corrected for calorimetry ramp rate offset PeakT-corr-Melting peak of shoot water, corrected for calorimetry ramp rate offset Dsc-notes-Notes on appearance of differential scanning calorimetry peaks Stem mass-Mass in g of shoot used for microscopy Mean area-Mean area in mm2 of laminar cells (from Moss-meas Datasheet.csv) Sd area-Standard deviation of cell area (from Moss-meas Datasheet.csv) Mean perimeter-Mean perimeter in mm of laminar cells (from Moss-meas Datasheet.csv) Sd perimeter-Standard deviation of cell perimeter (from Moss-meas Datasheet.csv) Mean width-Mean width in mm of laminar cells (from Moss-meas Datasheet.csv) Sd width-Standard deviation of cell width (from Moss-meas Datasheet.csv) Mean length-Mean length in mm of laminar cells (from Moss-meas Datasheet.csv) Sd length-Standard deviation of cell length (from Moss-meas Datasheet.csv) Micro Mean Fo-Mean Fo of leaves (from Moss-fluorescence micro Datasheet.csv) Micro Sd Fo-Standard deviation Fo of leaves (from Moss-fluorescence micro Datasheet.csv ) Micro Mean Fm-Mean Fm of leaves (from Moss-fluorescence micro Datasheet.csv) Micro Sd Fm- Standard deviation Fm of leaves (from Moss-fluorescence micro Datasheet.csv) Micro Mean Fv.Fm-Mean FvFm of leaves (from Moss-fluorescence micro Datasheet.csv) Micro Sd Fv.Fm- Standard deviation FvFm of leaves (from Moss-fluorescence micro Datasheet.csv) Moss-fluorescence Datasheet.csv Date-date of experiment Run-experimental run (1 to 18) ClumpSp-dominant species of moss clump: C-Ceratodon purpureus; S- Schistidium antarctici; BC- Bryum pseudotriquetrum and Ceratodon purpureus codominant Replicate-replicate (here equal to Run) Pseudoreplicates-replicates of the same species during the same run Temp-Treatment temperature: 8 degrees C, 16 degrees C or 24 degrees C VPD-Vapour pressure differential of treatment: 0.2kPa, 0.5kPa or 1.2kPa Timepoint-Sampling timepoint (0 = initial conditions) Time-Time in hours since start of experimental run Treatment-Experimental phase: Drying, Recovery (rehydration following drying process), ReRun (second round of drying following recovery) Problem-Identifies if there were any problems with the measurements Fo-Fluorescence in absence of light Fm-Dark adapted maximum fluorescence Fv/Fm-Maximum quantum yield of PSII Fo'1-Minimal light fluorescence (first replicate) Fo'2-Minimal light fluorescence (second replicate) Fo'3-Minimal light fluorescence (third replicate) Fm'1-Maximal light fluorescence (first replicate) Fm'2-Maximal light fluorescence (second replicate) Fm'3-Maximal light fluorescence (third replicate) Mean Fo-Mean Fo of clump Sd Fo-Standard deviation of the Fo of the clump Mean Fm-Mean Fo of clump Sd Fm-Standard deviation of the Fo of the clump Mean Fv.Fm-Mean Fo of clump Sd Fv.Fm-Standard deviation of the Fo of the clump Mean Fo'-Mean Fo of clump Sd Fo'-Standard deviation of the Fo of the clump Mean Fm'-Mean Fo of clump Sd Fm'-Standard deviation of the Fo of the clump Moss-fluorescence Datasheet.csv Date-date of experiment Run-experimental run (1 to 18) ClumpSp-dominant species of moss clump: C-Ceratodon purpureus; S- Schistidium antarctici; BC- Bryum pseudotriquetrum and Ceratodon purpureus codominant Replicate-replicate (here equal to Run) Temp-Treatment temperature: 8 degrees C, 16 degrees C or 24 degrees C VPD-Vapour pressure differential of treatment: 0.2kPa, 0.5kPa or 1.2kPa Timepoint-Sampling timepoint (0 = initial conditions) Time-Time in hours since start of experimental run Treatment-Experimental phase: Drying, Recovery (rehydration following drying process), ReRun (second round of drying following recovery) RWC stems-Relative water content of shoot in g water per g dry mass (from calorimetry tins) Fo-Fluorescence in absence of light Fm-Dark adapted maximum fluorescence Fv/Fm-Maximum quantum yield of PSII Mean Fo-Mean Fo of clump Sd Fo-Standard deviation of the Fo of the clump Mean Fm-Mean Fo of clump Sd Fm-Standard deviation of the Fo of the clump Mean Fv.Fm-Mean Fo of clump Sd Fv.Fm-Standard deviation of the Fo of the clump Moss-meas Datasheet.csv Date-date of experiment Run-experimental run (1 to 18) ClumpSp-dominant species of moss clump: C-Ceratodon purpureus; S- Schistidium antarctici; BC- Bryum pseudotriquetrum and Ceratodon purpureus codominant Replicate-replicate (here equal to Run) Temp-Treatment temperature: 8 degrees C, 16 degrees C or 24 degrees C VPD-Vapour pressure differential of treatment: 0.2kPa, 0.5kPa or 1.2kPa Timepoint-Sampling timepoint (0 = initial conditions) Time-Time in hours since start of experimental run Treatment-Experimental phase: Drying, Recovery (rehydration following drying process), ReRun (second round of drying following recovery) RWC-Relative water content of moss clump in g water per g dry mass RWC stems-Relative water content of shoot in g water per g dry mass (from calorimetry tins) Area-Area in mm2 of leaf lamina cell Perimeter-Perimeter in mm of leaf lamina cell Width-Width in mm of leaf lamina cell Length-Length in mm of leaf lamina cell Mean area-Mean area in mm2 of laminar cells Sd area-Standard deviation of cell area Mean perimeter-Mean perimeter in mm of laminar cells Sd perimeter-Standard deviation of cell perimeter Mean width-Mean width in mm of laminar cells Sd width-Standard deviation of cell width Mean length-Mean length in mm of laminar cells Sd length-Standard deviation of cell length Calib.csv Solution-Water or sucrose Bymass-Concentration of sucrose solution in g per g water Concentration-Molar concentration of sucrose solution Volume-Volume in microliters of sample Mass tin-Mass in g of empty calorimetry tin Mass wet-Mass in g of calorimetry tin + sample Mass sample-Mass in g of sample Tm- Melting point in uncorrected degrees C of solution Peak- Melting peak in uncorrected degrees C of solution Area- Area of melting peak of solution in DSC units Tf-Freezing point in uncorrected degrees C of solution Areaf- Area of freezing peak of solution in DSC units This work was conducted under the auspices of AAS projects 2780 and 2061.
Purpose:
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Supplemental_Information:
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Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20120201
Ending_Date: 20120229
Currentness_Reference:Unknown
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20120320
Ending_Date: 20120524
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 110.5
East_Bounding_Coordinate: 110.52
North_Bounding_Coordinate: -66.28
South_Bounding_Coordinate: -66.3
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MOSSES/HORNWORTS/LIVERWORTS
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PHOTOSYNTHESIS
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > VEGETATION > CHLOROPHYLL
Theme_Keyword: FIELD INVESTIGATION
Theme_Keyword: FIELD SURVEYS
Theme_Keyword: LABORATORY
Theme_Keyword: Drying Response
Theme_Keyword: Mass
Theme_Keyword: Water Content
Theme_Keyword: Photosynthesis
Theme_Keyword: Cellular Sollute
Theme_Keyword: Cellular Dimensions
Theme_Keyword: BIOTA
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: These data are not yet publicly available. There are two download files, one for data and one containing a copy of a thesis produced from this work.
Use_Constraints:
This data set conforms to the PICCCBY Attribution License (http://creativecommons.org/licenses/by/3.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_2780_dryingresponse when using these data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: DANIEL STANTON
Contact_Person_Primary:
Contact_Person: MORGANE MERLIN
Contact_Position: INVESTIGATOR
Contact_Position: TECHNICAL CONTACT
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Functional Ecology Group, Ball Lab
Address: Research School of Biology, Plant Sciences Division
Address: Building 46
Address: The Australian National University
City: Canberra
State_or_Province: ACT
Postal_Code: 0200
Country: Australia
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Ecole Normale Superieure
City: Paris
Postal_Code: 75005
Country: France
Contact_Voice_Telephone: +61 2 6125 4558
Contact_Electronic_Mail_Address: daniel.stanton@anu.edu.au
Contact_Electronic_Mail_Address: merlin@magbio.ens.fr
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Samples were collected in February 2012. The experiments reported in this dataset were conducted between March 20th 2012 and May 24th 2012. No major problems were encountered. A small number of chlorophyll measurements are potentially problematic and have been flagged as such in the relevant data sheet and were not included in the final analysis. The relative proportion of Bryum and Ceratodon in the mixed clumps was variable, and so those clumps were not included in the published final analysis.
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Contact_Organization_Primary:
Contact_Organization: AU/AADC > Australian Antarctic Data Centre, Australia
Contact_Person: DATA OFFICER AADC
Contact_Position: DATA CENTER CONTACT
Contact_Address:
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Address: Australian Antarctic Division
Address: 203 Channel Highway
City: Kingston
State_or_Province: Tasmania
Postal_Code: 7050
Country: Australia
Contact_Voice_Telephone: +61 3 6232 3244
Contact_Facsimile_Telephone: +61 3 6232 3351
Contact_Electronic_Mail_Address: metadata@aad.gov.au
Resource_Description: AAS_2780_dryingresponse
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Access_Instructions:
Public information for ASAC project 2780
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https://secure3.aad.gov.au/proms/public/projects/r...
Access_Instructions:
Public information for ASAC project 3061
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Metadata_Reference_Information:
Metadata_Date: 20120925
Metadata_Review_Date: 20141009
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GCMD User Support Office
Contact_Organization: NASA Global Change Master Directory
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Not Available
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: Not Available
Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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