Assessing UV-B induced DNA damage in Antarctic plants: is desiccation a compounding factor?

• Other Authors: ROBINSON, SHARON (hasPrincipalInvestigator), ROBINSON, SHARON (processor), Australian Antarctic Data Centre (publisher)
• Format: Dataset
• Language: unknown
• Published: Australian Antarctic Data Centre
• Subjects: biota; ULTRAVIOLET RADIATION; EARTH SCIENCE; ATMOSPHERE; ATMOSPHERIC RADIATION; CHLOROPHYLL; BIOSPHERE; VEGETATION; MOSSES/HORNWORTS/LIVERWORTS; BIOLOGICAL CLASSIFICATION; PLANTS; COMMUNITY STRUCTURE; ECOLOGICAL DYNAMICS; COMMUNITY DYNAMICS; ASPECT; COMMUNITY TYPE; DATE; DESSICATION; DNA; FLUORESCENCE; LEAF TEMPERATURE; SPECIES; TIME; UV-B; WATER CONTENT; WEIGHT; FIELD SURVEYS; CONTINENT > ANTARCTICA > Casey; GEOGRAPHIC REGION > POLAR; OCEAN > SOUTHERN OCEAN > HEARD AND MCDONALD ISLANDS; Antarctic; Casey Station; Heard; Heard Island; McDonald Islands; Southern Ocean; Antarc*; Antarctica
• Online Access: https://researchdata.edu.au/assessing-uv-b-compounding-factor/699673; https://doi.org/10.4225/15/556D0B22A6452; https://data.aad.gov.au/metadata/records/ASAC_1310; http://nla.gov.au/nla.party-617536

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 files constitute this dataset. 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. Nutrient gradient 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. Scarlett Hill 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. Spit Camp GPS co-ordinates: 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: Species Date Weight grams dry weight (gdw) Water Content Aspect Community type Time (Local Time) Fluorescence 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