Antioxidant Characteristics in the Leaves of 14 Coniferous Trees under Field Conditions

  • Han, Sim-Hee (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Lee, Jae-Cheon (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Lee, Wi Young (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Park, YoungKi (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Oh, Chang-Young (Department of Forest Genetic Resources, Korea Forest Research Institute)
  • Received : 2006.02.14
  • Accepted : 2006.04.05
  • Published : 2006.06.30


We investigated antioxidant capacity in leaves of 14 coniferous trees under field conditions. We focused on understanding the species characteristics on antioxidant systems and screening the coniferous tree species with the best antioxidant systems using their characteristics. The antioxidant capacity of 14 coniferous trees was divided into three groups. First group was Thuja orientalis and Chamaecyparis obtusa and those species had the highest content of ${\beta}$-carotene and xanthophyll. Second group, C. obtusa and Juniperus chinensis, used antioxidant enzymes to mitigate stress. C. obtusa represented high activity at superoxide dismutase (SOD), glutathione reductase (GR), and peroxidase (POD), and J. chinensis exhibited high activity at SOD, POD, catalase (CAT). Third group employed antioxidant such as ascorbic acid and ${\alpha}$-tocopherol. The antioxidant content of T. orientalis was the highest while that of Pinus parviflora and C. obtusa were the lowest. Few species belonged in three groups simultaneously, and most species belonged in at least one or two groups. In summary, we proposed that C. obtusa and T. orientalis had the highest antioxidant capacity while P. parviflora and P. desiflora for. multicalus had the lowest antioxidant capacity.


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