Korean Journal of Agricultural and Forest Meteorology (한국농림기상학회지)

Korean Society of Agricultural and Forest Meteorology (한국농림기상학회)
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Seasonal Changes of Pigment Content and Antioxidant Capacity in Leaves of Alnus firma at Polluted Area

환경오염지에서 생육하는 사방오리나무의 색소함량 및 항산화능력의 계절변화

  • Han Sim-Hee (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Lee Jae-Cheon (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Oh Chang-Young (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Kim Jong-Kab (Faculty of Forest Science, Gyeongsang National University) ;
  • Kim Pan-Gi (Department of Forest Resources and Environment, Sangju National University)
  • 한심희 (국립산림과학원 산림유전자원부) ;
  • 이재천 (국립산림과학원 산림유전자원부) ;
  • 오창영 (국립산림과학원 산림유전자원부) ;
  • 김종갑 (경상대학교 산림자원학과) ;
  • 김판기 (국립상주대학교 산림환경자원학과)
  • Published : 2006.06.01
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Abstract

To elucidate the relation of leaf development stage to the antioxidative function in leaves of Alnus firma Sieb. et Zucc. growing in polluted areas, we investigated seasonal changes of pigment content and antioxidant enzyme activities from January to June. In abandoned mine and industrial complex areas, antioxidant function against stress of trees was changed with leaf expansion, and antioxidant activity in leaves was highest in June. Among antioxidants, carotenoid, SOD and CAT were correlated with seasonal change. Carotenoid and SOD represented a positive correlation but CAT represented a negative correlation with leaf development. APX and CAT, which remove $H_{2}O_2$, had a complementary function in the antioxidant system. The lowest antioxidant activity was observed in April, and the damage level in leaves, shown as MDA content, was also lowest in April.

오염물질에 노출된 수목에서 잎의 발달 단계와 항산화 기능의 관계를 구명하기 위하여, 1월부터 6월까지 색소 함량과 항산화 활성의 변화를 조사하였다. 폐광지역과 공단지역내 수목의 스트레스에 대한 항산화 기능은 잎 발달과 함께 변화하며, 6월에 가장 높은 항산화 활성을 나타내었다. 항산화 물질 중 계절 변화와 상관을 나타내는 것은 카로테노이드, SOD 및 CAT였으나, 카로테노이드와 SOD는 정(+)의 상관을 나타냈고, CAT는 부(-)의 상관을 보였다. 또한 $H_{2}O_{2}$,를 제거하는 데 관여하는 APX와 CAT는 상호 보완적인 관계를 나타냈다. 가장 낮은 항산화 활성을 나타내는 시기는 4월이었으며, 이 시기에는 스트레스로 인해 피해 수준도 낮았다.

Keywords

References

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