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Stratospheric ozone depletion: High arctic tundra plant growth on Svalbard is not affected by enhanced UV-B after 7 years of UV-B supplementation in the field

Rozema, Jelte ; Boelen, Peter ; Solheim, Bjorn ; Zielke, Matthias ; Buskens, Alwin ; Doorenbosch, Marieke ; Fijn, Ruben ; Herder, Jelger ; Callaghan, Terry and Björn, Lars Olof LU , et al. (2006) In Plant Ecology 182(1-2). p.121-135
Abstract
The response of tundra plants to enhanced UV-B radiation simulating 15 and 30% ozone depletion was studied at two high arctic sites (Isdammen and Adventdalen, 78 degrees N, Svalbard).The set-up of the UV-B supplementation systems is described, consisting of large and small UV lamp arrays, installed in 1996 and 2002. After 7 years of exposure to enhanced UV-B radiation, plant cover, density, morphological (leaf fresh and dry weight, leaf thickness, leaf area, reproductive and ecophysiological parameters leaf UV-B absorbance, leaf phenolic content, leaf water content) were not affected by enhanced UV-B radiation. DNA damage in the leaves was not increased with enhanced UV-B in Salix polaris and Cassiope tetragona. DNA damage in Salix polaris... (More)
The response of tundra plants to enhanced UV-B radiation simulating 15 and 30% ozone depletion was studied at two high arctic sites (Isdammen and Adventdalen, 78 degrees N, Svalbard).The set-up of the UV-B supplementation systems is described, consisting of large and small UV lamp arrays, installed in 1996 and 2002. After 7 years of exposure to enhanced UV-B radiation, plant cover, density, morphological (leaf fresh and dry weight, leaf thickness, leaf area, reproductive and ecophysiological parameters leaf UV-B absorbance, leaf phenolic content, leaf water content) were not affected by enhanced UV-B radiation. DNA damage in the leaves was not increased with enhanced UV-B in Salix polaris and Cassiope tetragona. DNA damage in Salix polaris leaves was higher than in leaves of C. tetragona. The length of male gametophyte moss plants of Polytrichum hyperboreum was reduced with elevated UV-B as well as the number of Pedicularis hirsuta plants per plot, but the inflorescence length of Bistorta vivipara was not significantly affected. We discuss the possible causes of tolerance of tundra plants to UV-B (absence of response to enhanced UV-B) in terms of methodology (supplementation versus exclusion), ecophysiological adaptations to UV-B and the biogeographical history of polar plants. (Less)
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gametophyte, inflorescence, leaf area, ozone depletion, Pedicularis hirsuta, plant density, Polytrichum hyperboreum, Salix, polaris, ultraviolet-b radiation, tundra, thickness, Sanionia uncinata, supplementation, Cassiope tetragona, Arctic, Bistorta vivipara, Dryas, DNA-damage, cover, octopetala
in
Plant Ecology
volume
182
issue
1-2
pages
121 - 135
publisher
Springer
external identifiers
  • wos:000238344200009
  • scopus:33745215835
ISSN
1573-5052
DOI
10.1007/s11258-005-9035-x
project
Photobiology
language
English
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yes
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4a189ce7-af0d-4164-bde0-99ddb58131e6 (old id 405859)
date added to LUP
2016-04-01 11:34:47
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2020-01-12 08:12:36
@article{4a189ce7-af0d-4164-bde0-99ddb58131e6,
  abstract     = {The response of tundra plants to enhanced UV-B radiation simulating 15 and 30% ozone depletion was studied at two high arctic sites (Isdammen and Adventdalen, 78 degrees N, Svalbard).The set-up of the UV-B supplementation systems is described, consisting of large and small UV lamp arrays, installed in 1996 and 2002. After 7 years of exposure to enhanced UV-B radiation, plant cover, density, morphological (leaf fresh and dry weight, leaf thickness, leaf area, reproductive and ecophysiological parameters leaf UV-B absorbance, leaf phenolic content, leaf water content) were not affected by enhanced UV-B radiation. DNA damage in the leaves was not increased with enhanced UV-B in Salix polaris and Cassiope tetragona. DNA damage in Salix polaris leaves was higher than in leaves of C. tetragona. The length of male gametophyte moss plants of Polytrichum hyperboreum was reduced with elevated UV-B as well as the number of Pedicularis hirsuta plants per plot, but the inflorescence length of Bistorta vivipara was not significantly affected. We discuss the possible causes of tolerance of tundra plants to UV-B (absence of response to enhanced UV-B) in terms of methodology (supplementation versus exclusion), ecophysiological adaptations to UV-B and the biogeographical history of polar plants.},
  author       = {Rozema, Jelte and Boelen, Peter and Solheim, Bjorn and Zielke, Matthias and Buskens, Alwin and Doorenbosch, Marieke and Fijn, Ruben and Herder, Jelger and Callaghan, Terry and Björn, Lars Olof and Jones, Dylan Gwynn and Broekman, Rob and Blokker, Peter and van de Poll, Willem},
  issn         = {1573-5052},
  language     = {eng},
  number       = {1-2},
  pages        = {121--135},
  publisher    = {Springer},
  series       = {Plant Ecology},
  title        = {Stratospheric ozone depletion: High arctic tundra plant growth on Svalbard is not affected by enhanced UV-B after 7 years of UV-B supplementation in the field},
  url          = {http://dx.doi.org/10.1007/s11258-005-9035-x},
  doi          = {10.1007/s11258-005-9035-x},
  volume       = {182},
  year         = {2006},
}