Assessing UV-B induced DNA damage in Antarctic plants: is desiccation a compounding factor?Entry ID: ASAC_1310
Abstract: Metadata record for data from ASAC Project 1310
See the link below for public details on this project.
---- Public Summary from Project ----
Increasing UV-radiation over Antarctica each spring may damage DNA in plants. This research determined the susceptibility of Antarctic plants to such damage and investigated the effectiveness of protective and repair mechanisms. This helps predict how plants ... globally will cope with future climate change.
Samples have been collected from Heard Island, and near Casey Station, Antarctica. Three excel fiels constuitute this dataset. Currently, the file detailing samples collected from ASPA 135 near Casey Station (species, weight, water content) is available for download.
Heard Island 2003/4 Samples collected for project 1310
Vascular plant UVB site
GPS coordinates of vascular plant UV site 53 06 57 S, 73 43 30E A total of 4 g of each of 5 species (Pringlea antiscorbutica, Poa cookii. Deschampsia antarctica. Azorella selago, Acaena magellanica) were collected on 5 days over the season. These were analysed for DNA damage, UVB absorbing pigments, and photosynthetic and photoprotective pigments. Chlorophyll fluorescence and leaf temperature were measured on the sampled plants.
GPS co-ordinates: high nutrient site: 53 06 0.419S, 73 43 0.105E 4g of P. antiscorbutica and 0.8g of P. cookii were taken at the high nutrient site, along with chlorophyll fluorescence measurements.
GPS co-ordinates: low nutrient site: 53 06 29.09S, 73 43 00.36E 7.2g of P. antiscorbutica and 3.2g of P. cookii were taken at the low nutrient site, along with chlorophyll fluorescence measurements.
GPS co-ordinates: 53 05 0.645S, 073 40 0.339E
3.2 g of P. antiscorbutica plants was sampled and chlorophyll fluorescence measurements taken.
3.2g of P. antiscorbutica plants was sampled and chlorophyll fluorescence measurements taken.
Ceratodon Paddick Valley
GPS co-ordinates: 53 08 43.44S, 73 40 35.42E 3 g of Ceratodon purpureus was collected.
The fields in this dataset are:
grams dry weight (gdw)
Time (Local Time)
Leaf temperature (1, 2, etc)
F - Chlorophyll Fluorescence
Fm' - Fluorescence maximum measured in the light
Yield - Yield of fluorescence
No. and Mark are stamps put on the data during download
(Click for Interactive Map)
Start Date: 2002-11-09Stop Date: 2003-02-01
Start Date: 2003-12-16Stop Date: 2004-02-26
ISO Topic Category
Quality DNA damage may not happen because there were problems with the UV-B meter logging and so we don't have data to correlate with UV absorbing pigments.
Access Constraints Three datasets are currently included in the file for this project. Only one of these is currently available for download from the URL given below.
Use Constraints This data set conforms to the PICCCBY Attribution License
Data Set Progress
Distribution Media: HTTP
Distribution Size: 68 kb
Distribution Format: excel
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 2 4221 5753
Fax: +61 2 4221 4135
Email: sharonr at uow.edu.au
Department of Biological Sciences University of Wollongong Northfields Ave
Province or State: New South Wales
Postal Code: 2522
Lovelock C.E., Robinson S.A. (2002), Surface reflectance properties of Antarctic moss and their relationship to plant species, pigment composition and photosynthetic function., Plant, Cell and Environment., 25, 1239-1250
Robinson S.A., Wasley J., Tobin A.K. (2003), Living on the edge - plants and global change in continental and maritime Antarctica., Global Change Biology, 9, 1681-1717
Dunn J.L., Turnbull J.D., Robinson S.A. (2004), Comparison of solvent regimes for the extraction of photosynthetic pigments from leaves of higher plants., Functional Plant Biology, 31, 195-202
Cooper S.M., Dunn J., Russell A.W., Robinson S.A. (2002), Screening pigments: mosses protection against UV-B., ComBio 2002, Sydney. Australia, POS-WED-080
Bargon S., Hemley S., Russell A.W., Robinson S.A. (2002), UV-B induced DNA damage and the effect of light environment on repair of DNA photoproducts in Antarctic mosses., ComBio 2002, Sydney. Australia, POS-WED-081
Robinson S.A., Dunn J. (2003), Antarctic Moss: Survival beneath the ozone layer., 4th conference on Biochemistry, Ecophysiology and Population Biology of Alpine and Polar Plants., Trins, Australia
Robinson S.A., Dunn J. (2003), Antarctic moss: survival beneath the ozone layer., The 4th conference on biochemistry, ecophysiology and population biology of alpine and polar plants., 100, Trins, Australia
Venturini C. (2003), Effects of Light Environment and Temperature on UV-B induced DNA Damage Repair Mechanisms in the Antarctic moss Ceratodon purpureus., Thesis, 1-104, University of Wollongong., Bachelor of Science (Honours) Degree
Leslie S. (2003), The Combined Effects of Desiccation and UV-B Radiation on the Accumulation of DNA Damage, Pigment Composition and Photosynthetic Efficiency in three species of Antarctic moss., Thesis, 1-87, University of Wollongong, Bachelor of Biotechnology (Honours) Degree
Hemley S.J. (2002), UV-B induced DNA damage and the effect of light exposure on repair of DNA photoproducts in an Antarctic moss species (Ceratodon purpureus)., 1-121, University of Wollongong, Bachelor of Biotechnology Degree
Bargon S.D. (2002), UV-B induced DNA photoproducts and the effect of light and temperature on DNA damage repair in an Antarctic moss species (Bryum pseudotriquetrum)., 1-101, University of Wollongong, Bachelor of Science Degree
Cooper S. (2002), A study of UV screening and protective compounds in Antarctic mosses., 1-145, University of Wollongong, Bachelor of Biotechnology Degree
Olsen L.J. (2001), Accumulation of UV-B induced DNA damage in the moss Ceratodon purpureus., 1-125, University of Wollongong, Bachelor of Biotechnology Degree
Robinson S.A., Bargon S., Hemley S. (2003), Repair of DNA photoproducts in Antarctic mosses., Plant Biology 2003, Honolulu, Hawaii
Dunn J., Robinson S.A (2001), Antarctic Moss: survival beneath the ozone layer, the COMBIO2001 conference SYM-05-02
Creation and Review Dates
DIF Creation Date: 2009-06-19
Last DIF Revision Date: 2009-06-23