Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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The Study of Application of Bio-Surfactant Producing Bacteria for Growing Crop in Oil Spilled Soil

기름으로 오염된 토양에서 작물생육을 위한 계면활성제 생산 Bacteria의 활용에 관한 연구

  • Hwang, Cher-Won (School of Global Leadership (Institute of Bioscience and Technology), Han-Dong Global University) ;
  • Chang, Hae-Won (School of Global Leadership (Institute of Bioscience and Technology), Han-Dong Global University) ;
  • Choe, Yong-Rak (Department of Biotechnology, Faculty of Natural Resources and Life Science, Dong-A University)
  • 황철원 (한동대학교 기초학부(생명공학연구소)) ;
  • 장혜원 (한동대학교 기초학부(생명공학연구소)) ;
  • 최용락 (동아대학교 생명자연과학부)
  • Published : 2007.07.30
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Abstract

Bacillus sp.LPO3 (producing emulsifying substances such as bio-surfactant) was used as a bio-control agent to degrade hydrocarbon (gasoline in oil spilled crop soil). The soil (brought from fertilizer store)was mixed with gasoline-spilled soil (made with Diatomaceous Earth, Sigma.U.S.A). The study was conducted for a period of 13 days, 13 days during which bacterial growth, hydrocarbon degradation and growth parameters of Bacillus sp.LP03 including shoot and root length were studied. We found that the effective of bacterial producing substance might bio-surfactants let the plants survive even more promote the growth of shoot and root length and showed antifungal activity against gray mold. Without the bacteria, they couldn't grow in oil-spilled soil not even survive. According to the results of the above experiments, we can see with following results, hydrocarbon in gasoline was reduced, day by day, then RNA dot blotting was done and it fit the results we had done. Finally, this Bacteria(producing bio-surfactant) were found to have effective bio-control agent for cropping in oil spilled soil and infected by gray mold.

Bacillus LPO3 (계면활성제와 같이 유화물질을 생산하는)을 hydrocarbon을 감소시키는 bio-control agent로 사용했다. 토양 (시중구입)은 gasoline을 섞어 오염시킨 토양을 사용하였다. 13일 동안 bacteria의 성장, hydrocarbon의 감소, 그리고, Bacillus LP03 의 작물 성장에 미친 요인(식물의 싹과 뿌리의 길이를 포함한)을 관찰하였다. 우리는 이 bacteria의hydrocarbon을 감소 시키는 물질로서 이 균이 생산하는 계면활성제일 것이라는 가능성을 이미 확인 하였으며 이는 식물의 싹과 뿌리의 생장을 촉진하였고, 회색 곰팡이에 대하여항 진균 활성을 보였다. 본 연구에서는 bacteria를 넣지 않은 기름으로 오염된 토양 실험 군에서는 식물이 자라나지 않았을 뿐 아니라 살아남지도 못했다. 실험 결과로 볼 때, gasoline의 hydrocarbon이 시간이 지남에 따라 감소되었고, RNA blotting실험에서는 오염된 토양에서 균의 증식과 더불어 계면활성제관련 유전자 산물의 증가를 확인하였다 결과적으로, 이 bacteria (계면활성제를 생산하는)는 회색 곰팡이에 감염된 토양이나 기름으로 오염된 토양에서 작물이 자랄 수 있게 하기 위한 bio-control agent로서 유효한 균으로 생각된다.

Keywords

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