농약과학회지 (The Korean Journal of Pesticide Science)

  • 제19권3호
  • /
  • Pages.329-334
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  • 2015
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  • 1226-6183(pISSN)
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  • 2287-2051(eISSN)
한국농약과학회 (The Korean Society of Pesticide Science)
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Mepanipyrim에 대한 잿빛곰팡이병균의 저항성 검정

Monitoring for the Resistance of Botrytis cinerea Causing Gray Mold Against Mepanipyrim

  • 김아형 (충북대학교 농업생명환경대학 식물의학과) ;
  • 김선보 (성보화학(주)) ;
  • 한기돈 (성보화학(주)) ;
  • 김흥태 (충북대학교 농업생명환경대학 식물의학과)
  • Kim, Ah Hyeong (Department of Plant Medicine, College of Agriculture, Life and Environment Science, Chungbuk National University) ;
  • Kim, Seon Bo (Sungbo Chemical) ;
  • Han, Kee Don (Sungbo Chemical) ;
  • Kim, Heung Tae (Department of Plant Medicine, College of Agriculture, Life and Environment Science, Chungbuk National University)
  • 투고 : 2015.08.25
  • 심사 : 2015.09.18
  • 발행 : 2015.09.30
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초록

병든 토마토, 딸기, 오이 등의 열매에서 분리한 86개의 Botrytis cinerea의 균주를 가지고 한천희석법을 통하여 mepanipyrim의 균사생장 억제효과를 조사하였으며, $EC_{50}$값을 계산하여 저항성 모니터링을 실시하였다. 병원균의 저항성 모니터링을 PDA 배지에서 실시할 경우 mepanipyrim의 균사생장 억제효과를 정확하게 검정할 수 없었으나, FGA 배지를 사용하였을 때에는 감수성과 저항성 반응을 뚜렷하게 구분할 수 있었다. 실험에 사용한 B. cinerea의 86개 균주를 $1.0{\mu}g\;mL^{-1}$의 $EC_{50}$값을 가지고 감수성과 저항성을 구분하였으며, 전체 균주 중에서 20개인 23.3%가 저항성균으로 분류되었다. 지역에 따라서 저항성균의 분리비에는 차이가 있었는데, 경기, 경남/부산, 그리고 충남에서 각각 분리한 균주 중에서 저항성균의 비율은 28.6, 33.3, 12.8%로, 경남/부산 지역에서 가장 높았다. Mepanipyrim에 대한 저항성균은 pyrimethanil에 대해서도 교차저항성을 보였으며, 오이 자엽에 대한 병원성을 감수성 균주와 비교해 보아도 전혀 떨어지지 않았다. 따라서 포장에서 anilinopyrimidine계 살균제를 효과적으로 사용하기 위해서 적극적인 관리가 필요한 상태이다.

With 86 isolates of Botrytis cinerea obtained from diseased fruits of tomato, strawberry and cucumber, it was conducted to detect the fungicide resistance of B. cinerea against mepanipyrim through an agar dilution method. FGA medium was used for monitoring the resistance. Among 86 isolates of B. cinerea, resistant isolates were composed by 23.3%, which was different according to regions isolating the pathogen. In accordance with isolation region, the isolation frequency of resistant isolates was as follows; that of Gyeonggi, Gyeongnam/Pusan and chungnam was 28.6%, 33.3% and 12.8%, respectively. The resistant isolates of B. cinerea showed the cross resistance between mepanipyrim and pyrimethanil. Also the pathogenicity of B. cinerea resistant to mepanipyrim was high as like that of sensitive isolates. Because of them, it should be necessary to manage the spraying system of mepanipyrim and the monitoring for the fungicide resistance.

키워드

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