A Comparison of Sensitivity of Four Freshwater Algae to Five Pesticides

5종 농약에 대한 4종 담수조류(freshwater algae)의 감수성 비교

  • Park, Yeon-Ki (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Kim, Byung-Seok (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Bae, Chul-Han (Agricultural Research Center, Hankooksamgong Co., Ltd.) ;
  • Kim, Yeon-Sik (Agricultural Research Center, Hankooksamgong Co., Ltd.) ;
  • Park, Kyung-Hoon (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Lee, Jea-Bong (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Shin, Jin-Sup (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Hong, Soon-Sung (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Lee, Kyu-Seung (Chungnam National University) ;
  • Lee, Jung-Joon (Daegu University)
  • 박연기 (농업과학기술원 농산물안전성부) ;
  • 김병석 (농업과학기술원 농산물안전성부) ;
  • 배철한 (한국삼공(주) 농업연구소) ;
  • 김연식 (한국삼공(주) 농업연구소) ;
  • 박경훈 (농업과학기술원 농산물안전성부) ;
  • 이제봉 (농업과학기술원 농산물안전성부) ;
  • 신진섭 (농업과학기술원 농산물안전성부) ;
  • 홍순성 (농업과학기술원 농산물안전성부) ;
  • 이규승 (충남대학교 농업생명과학대학) ;
  • 이정준 (대구대학교 사범대학)
  • Published : 2008.03.31

Abstract

The purpose of the study was to determine the effects of isoprothiolane, diazinon, butachlor, dimethametryn and molinate in Selenastrum capriconurtum, Scenedesmus subspicatus, Chlorella vufgaris and Nitzschia palea during an exposure period of 72 hours. The study was carried out in according with the OECD Guidelines for Testing of Chemicals No 201 Alga, Growth Inhibition Test. The toxicological responses of isoprothiolane to S. capriconutum, S. subspicatus, C. vulgaris and N. palea expressed as in individual $ErC_{50}$ (Median Effective Concentration by growth rate) value, were 5.87, 9.91, $18.55 and 38.79\;mg\;L^{-1}$, respectively. Diazinone to S. capriconutum, S. subspicatus, C. vulgaris and palea expressed as in individual $ErC_{50}$ value, were 10.31, 11.44, >32 and $14.32\;mg\;L^{-1}$, respectively. Butachlor to S. capriconutum, S. subspicatus, C. vulgaris and N. plaea expressed as in individual $ErC_{50}$ value, were 0.002, 0.019, 8.67 and $4.94\;mg\;L^{-1}$, respectively. Dimethamelryn to S. subspicatus, C. vulgaris and N. palea expressed as in individual $ErC_{50}$ value, were 0.0071, 0.011, 0.0065 and $0.009\;mg\;L^{-1}$, respectively. Molinate to S. capriconutum, S. subspicatus, C. vulgaris and N. palea expressed as in individual $ErC_{50}$ value, were 0.44, 1.26, 48.84 and $28.52\;mg\;L^{-1}$, respectively. The sensitivities of five pesticides were different depending on freshwater alga in the order of S. capriconutum > S. subspicatus > C. vulgaris, N. palea. Highly significant correlation (r=0.9677) based on $ErC_{50}$ were found between S. capriconutum and S. subspicatus.

Keywords

pesticide;green algae;diatom;growth inhibition;sensitivity

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