Control effects of new triazoyl quinolines KSI-4315 and KSI-4317 against barley powdery mildew and wheat leaf rust

신규의 triazoyl quinoline 화합물 KSI-4315와 KSI-4317의 보리 흰가루병과 밀 붉은녹병에 대한 방제효과

  • Choi, Gyung-Ja (Bio-Organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Yon, Gyu-Hwan (Bio-Organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Kim, Heung-Tae (Bio-Organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Jang, Kyoung-Soo (Bio-Organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Kim, Jin-Cheol (Bio-Organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Lee, Seon-Woo (Bio-Organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Pak, Chwang-Siek (Bio-Organic Science Division, Korea Research Institute of Chemical Technology) ;
  • Cho, Kwang-Yun (Bio-Organic Science Division, Korea Research Institute of Chemical Technology)
  • 최경자 (한국화학연구원 생물화학연구부) ;
  • 연규환 (한국화학연구원 생물화학연구부) ;
  • 김흥태 (한국화학연구원 생물화학연구부) ;
  • 장경수 (한국화학연구원 생물화학연구부) ;
  • 김진철 (한국화학연구원 생물화학연구부) ;
  • 이선우 (한국화학연구원 생물화학연구부) ;
  • 박창식 (한국화학연구원 생물화학연구부) ;
  • 조광연 (한국화학연구원 생물화학연구부)
  • Published : 2003.12.30

Abstract

Disease control activities of 230 triazolyl quinoline derivatives were investigated against six plant diseases such as rice blast, rice sheath blight, tomato gray mold, tomato late blight, wheat leaf rust (WLR) and barley powdery mildew (BPM). New triazolyl quinolines, KSI-4315 and KSI-4317 exhibited a great in vivo control activities against WLR and BPM, and then were selected for further tests such as preventive, curative, systemic, and persistence against WLR and BPM. The KSI-4315 and KSI-4317 contained MeS moiety and MsO moiety in carbon 4-position, respectively. They possessed both preventive activity and curative activity against WLR and BPM. KSI-4317 showed the better control activity than KSI-4315 against BPM, while KSI-4315 represented the better antifungal activity against WLR. Good persistence of KSI-4315 and KSI-4317 were also observed against WLR and BPM. Persistence of KSI-4315 was similar to that of KSI-4317 on WLR, but KSI-4317 was superior to KSI-4315 on BPM in its persistence. Systemic disease control of KSI-4315 and KSI-4317 was investigated by examining translaminar activity from leaf-under-surface to leaf-upper-surface, systemic activities by leaf to leaf movement and the effect of drenching treatment. Systemicities of KSI-4315 and KSI-4317 were not observed in wheat, but KSI-4317 showed more predominant systemicity than KSI-4315 in barley. These results suggest that KSI-4317 would potentially control WLR and BPM in the fields.

신규 화합물 triazolyl quinoline 유도체 230여개의 벼 도열병, 벼 잎집무늬마름병, 토마토 잿빛곰팡이병, 토마토 역병, 밀 붉은녹병과 보리 흰가루병에 대하여 방제효과를 조사하고, 녹병과 흰가루병에 대하여 예방효과가 우수한 KSI-4315와 KSI-4317을 선발하여 밀 붉은녹병과 보리 흰가루병에 대한 작용 특성을 실험하였다. Triazolyl quinoline 유도체인 KSI-4315와 KSI-4317 두 화합물은 구조에서 탄소 4번 위치에 각각 MeS moiety와 MsO moiety를 가진 화합물이다. 두 화합물은 밀 붉은녹병과 보리 흰가루병에 대하여 우수한 예방효과와 치료효과를 나타냈다. KSI-4317은 보리 흰가루병에 대하여, KSI-4315 는 밀 붉은녹병에 대하여 더 높은 예방효과와 치료효과를 보였다. 또한 두 화합물은 지속성도 우수하였다. 밀 붉은녹병에 대하여는 두 약제가 유사하였으나, KSI-4317은 보리 흰가루병에 대하여 특히 약효 지속성이 뛰어나 약제처리 7일 후 에 접종하여도 90% 이상의 방제가를 보였다. 약제의 침투이행성을 엽육이행, 엽간이행과 뿌리로부터 지상 부로의 침투이행에 대하여 실험한 결과, 밀에서 KSI-4315와 KSI-4317은 거의 침투 이행하지 않았으나, 보리에서는 KSI-4315 보다 KSI-4317이 높은 침투이행성을 보였다. 이상의 결과로부터 KSI-4317은 포장에서 밀 붉은녹병과 보리 흰가루병을 효과적으로 방제하리라 생각된다.

Keywords

References

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