Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
권호 표지

Phytoremediation of Heavy Metal Contaminated Soils Using Transgenic Plants

중금속 오염토양의 식물정화 기술과 형질전환 식물의 이용에 관한 최근 연구동향

  • Ok, Yong-Sik (Division of Biological Environment, Kangwon National University) ;
  • Kim, Jeong-Gyu (Division of Environmental Science and Ecological Engineering, Korea University) ;
  • Yang, Jae E. (Division of Biological Environment, Kangwon National University) ;
  • Kim, Hee-Joung (Division of Biological Environment, Kangwon National University) ;
  • Yoo, Kyung-Yoal (Division of Biological Environment, Kangwon National University) ;
  • Park, Chang-Jin (National lnstitute of Agricultural Science and Technology, RDA) ;
  • Jeong, Deok-Yeong (Department of Bio Environmental Chemistry, Chungnam National University)
  • 옥용식 (강원대학교 생물환경학부) ;
  • 김정규 (고려대학교 환경생태공학부) ;
  • 양재의 (강원대학교 생물환경학부) ;
  • 김휘중 (강원대학교 생물환경학부) ;
  • 유경열 (강원대학교 생물환경학부) ;
  • 박창진 (농업과학기술원) ;
  • 정덕영 (충남대학교 생물환경화학과)
  • Received : 2004.10.28
  • Accepted : 2004.11.11
  • Published : 2004.12.30
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Abstract

Current physical and chemical methodologies, conventionally used to clean up metal contaminated soils, are generally too expensive to apply in large hazardous waste sites including agricultural lands adjacent to closed or abandoned metal mines. Phytoremediation using plants to extract, sequester and detoxify environmental pollutants is one of the cost-effective and aesthetically-pleasing alternatives, compared with environmentally destructive remedial methods currently being practiced. But, phytoremediation has some limitations such as time consuming and low performance: in general, it is seasonally dependent and slower in removing metals than other methods, and metal accumulating plants are slow growers. Improvement of plants for metal tolerance, accumulation, and translocation using genetic engineering techniques recently opened up new possibilities for phytoremediation. In this paper, we have discussed about recent developments in conventional and genetically engineered phytoremediation. For the conventional phytoremediation, focuses are on the natural hyperaccumulator and the chemically assisted phytoremediation. Some pros and cons on the phytoremediation using transgenic plants, coupled with focusing on the mechanistic view points, are also discussed. It might be concluded that the transgenic plants will be effective tools in the practical application of phytoremediation especially for the highly contaminated soils but mechanisms involved should be deeply understood in advance.

Keywords

References

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