Removal Effect of Biostone and Green Tea on the Heavy Metal Toxicity during Seed Germination of Arabidopsis thaliana

애기장대의 종자 발아에 미치는 맥반석과 녹차의 중금속 제거 효과

  • 박종범 (신라대학교 자연과학부 생명과학전공)
  • Published : 2003.12.01


This experiment was carried out to investigate the effects of heavy metals (cadmium, chromium, copper and lead) on the seed germination of Arabidopsis thaliana, and examinated the removal effects of biostone and green tea on the heavy metal toxicity. Cadmium and chromium among the four heavy metals had no effect on the seed germination even in the concentration fifty times higher than in the official standard concentration of pollutant exhaust notified by the Ministry of Environment. However, seeds were not germinated in the concentration of copper ten times higher and in the concentration of lead fifty times higher than the official standard concentration. When seeds were sown in the solutions of lead (15, 20, 25 and 30 mg/L) and copper(15 and 20 mg/L), the seed germination rates were 0% and less than 10%, respectively. However, when biostone(3 g/30 $m\ell$) was added, the seed germination rate was 100% in all the concentrations. The germination rate was 100% in distilled water and copper solution (5 mg/L). However, green tea (0.2 g/30 $m\ell$) was added, the seed germination rate was 0% in both. The results show that cadmiun and chromium had no effect on the seed germination, but lead and copper decreased the rate of seed germination of Arabidopsis thaliana, Biostone removed heavy metal toxicity, but green tea did not removed heavy metal toxicity during germination.


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