Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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In Vivo Antifungal Activities of Surfactants against Tomato Late Blight, Red Pepper Blight, and Cucumber Downy Mildew

계면활성제를 이용한 역병과 오이 노균병 방제

  • Yu, Ju-Hyun (Bio-organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Jang, Kyoung-Soo (Bio-organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Kim, Heung-Tae (Bio-organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Kim, Jin-Cheol (Bio-organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Cho, Kwang-Yun (Bio-organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Choi, Gyung-Ja (Bio-organic Science Division, Korea Research Institute of Chemical Technology)
  • 유주현 (한국화학연구원 생물기능연구팀) ;
  • 장경수 (한국화학연구원 생물기능연구팀) ;
  • 김흥태 (한국화학연구원 생물기능연구팀) ;
  • 김진철 (한국화학연구원 생물기능연구팀) ;
  • 조광연 (한국화학연구원 생물기능연구팀) ;
  • 최경자 (한국화학연구원 생물기능연구팀)
  • Published : 2004.09.30
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Abstract

Anionic surfactants such as sodium dioctyl sulfosuccinate (SDSS) and sodium dodecylbenzene sulfonate (NaDBS) and a nonionic surfactant, polyoxyethylene oleyl ether (OE-7) were tested for their protective, curative, and persistent activities on tomato late blight (TLB, Phytophthora infestans), red pepper blight (RPB, P. capsici), and cucumber downy mildew (CDM, Pseudoperonospora cubensis). They exhibited a strong protective activity on TLB, RPB, and CDM. Among them, $NaDBS\;(500\;{\mu}g/ml)$ showed the most in vivo antifungal activities(1-day protective activity) with control values of 99%, 100%, and 85% against TLB, RPB, and CDM, respectively. However, the three surfactants represented a weak disease controlling efficacy on TLB, RPD, and CDM in a 1-day curative application. SDSS and NaDBS exhibited a good persistent activities on TLB and RPB. Especially, NaDBS, at $500\;{\mu}g/ml$, showed control values of more than 88% on TLB and RPB in a 7-day protective application. The results indicate SDSS and NaDBS have a potential for the control of TLB, RPB, and CDM in the fields.

음이온성 계면활성제인 sodium dioctyl sulfosuccinate(SDSS), sodium dodecylbenzene sulfonate(NaDBS) 및 비이온성 계면활성제인 polyoxyethylene oleyl ether(OE-7)를 선발하여 토마토 역병, 고추 역병 및 오이 노균병에 대한 예방효과, 치료효과 및 약효 지속성을 조사 하였다. 이들 계면활성제는 토마토 역병, 고추 역병 그리고 오이노균병에 대하여 우수한 1일전 예방효과를 보였다. 이들 중에 NaDBS는 가장 높은 살균 활성을 보였으며, $500\;{\mu}g/ml$ 처리에서도 토마토 역병, 고추 역병 및 오이 노균병에 대해 각각 99%, 100% 및 85%의 방제가를 나타냈다. 그러나 세 계면활성제는 접종 1일 후의 약제처리에 의해서는 낮은 치료효과를 보였다. SDSS와 NaDBS는 토마토 역병과 고추 역병에 대하여 우수한 약효 지속성을 보였으며, 특히 $NaDBS(500\;{\mu}g/ml)$는 접종 7일 전 약제처리구에서 토마토 역병과 고추 역병에 88% 이상의 방제가를 보였다. 이상의 결과로부터 SDSS와 NaDBS는 고추 역병, 토마토 역병 및 오이 노균병에 대하여 포장에서도 우수한 방제효과를 보일 것으로 판단되었다.

Keywords

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