Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Effect of Silver Ion Solution on the Inhibition of Microcystis Growth

은이온 수용액의 Microcystis 생장 억제 효과

  • Choi, Gang-Guk (Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology) ;
  • Lee, Sang-Hun (Division of Bio-Applied Chemistry, Chungnam National University) ;
  • Bae, Kie-Seo (Division of Bio-Applied Chemistry, Chungnam National University) ;
  • Shin, Jae-Ki (Korea Institute of Water and Environment, Korea Water Resources Corporation) ;
  • Oh, Hee-Mock (Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology)
  • 최강국 (한국생명공학연구원 생물자원센터) ;
  • 이상훈 (충남대학교 바이오응용화학부) ;
  • 배기서 (충남대학교 바이오응용화학부) ;
  • 신재기 (한국수자원공사 수환경연구원) ;
  • 오희목 (한국생명공학연구원 생물자원센터)
  • Published : 2008.08.31
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Abstract

The effect of silver ion solution on the growth of Microcystis aeruginosa UTEX 2388 (cyanobacterium) and Chlorella sp. KCTC AG20136 (green alga) was investigated using separated and mixed culture in filtered natural water and BG11 medium. In separated culture, M. aeruginosa UTEX 2388 and Chlorella sp. KCTC AG20136 were found to be sensitive to 0.01 and 0.1 mg L$^{-1}$ of silver ion, respectively. Also, the silver ion concentrations for the growth inhibition of M. aeruginosa UTEX 2388 and Chlorella sp. KCTC AG20136 in the mixed culture were same in separated culture. Cyanobacteria were more sensitive to the silver ion solution than green algae. In bloom sample, the minimal inhibition concentration of silver ion solution for the low Chl-${\alpha}$ sample (110$\sim$190 ${\mu}g$ L$^{-1}$) and high Chl-${\alpha}$ sample (1,500$\sim$1,900 ${\mu}g$ L$^{-1}$) was about 0.1 and 3.0 mg L$^{-1}$, respectively. The silver ion concentration for the inhibition of algal bloom sample was affected by the algal biomass. In order to use silver ion solution for the control of algal bloom, the silver ion concentration must be determined in consideration of a minimal effect on the environment.

Keywords

References

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