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한국생태학회 / v.19, no.6, 1996년, pp.519-527 
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미나리 ( Oenanthe stolonifera ) 의 Cd, Zn 제거능과 내성에 관한 연구
( Studies on Cd and Removal Ability and Detoxification of Oenanthe stolonifera ) |
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| 초 록 |
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| To examine the possibility of biomonitoring of heavy metal removal ability and soil, a study was performed to investigate the heavy metal removal ability and metal-binding protein (MBP) as detoxification process using Oenanthe stolonifera. After O. stolonifera was exposed to individuals (cadmium, zinc) and mixture (cadmium+zinc)for 4 days, removal rate of heavy metal and pH in the treatment medium was measured. MBP was assayed by means of ion exchange column chromatography. The exposure to mixture (Cd:76.8%, Zn:75%) rather than individuals (Cd:82.9%, Zn:90.4%) showed a synergism raising the toxic effect. Initial removal rate was different for each heavy metal : in case of exposure to cadmium it was over 60% on day 1, while for zinc it was 75~90% on day 4. Throughout the experimental period, pH value of treatment medium continuously decreased, since cortex in the roots may secret organic acid to adjust and prevent toxicity of metals. The existence or MBP in the 70~80 fraction and the presence of Zn-enzyme pool was ascertained with the column chromatography. This study demonstrated a possibility that heavy utilized as a biomarker of heavy metal pollution. |
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| 키워드 |
| Cadmium;Detoxification;Metal-binding protein;Oenanthe stoloniera Zinc; |
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The Korean Journal of Ecology / v.19, no.6, 1996년, pp.519-527
한국생태학회
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611919968451)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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