Sensitivity to Ergosterol Biosynthesis Inhibiting-Fungicides of Colletotrichum gloeosporioides Isolated from Persimmon Trees

감나무로부터 분리한 Colletotrichum gloeosporioides의 스테롤 생합성 저해제에 대한 감수성

  • Lim, Tae-Heon (Research Institute of Agri-Bio Science, Samhoub, Co., Ltd.) ;
  • Lee, Dong-Woon (Department of Applied Biology, Kyungpook National University) ;
  • Choi, Yong-Hwa (Department of Plant Resources, Kyungpook National University) ;
  • Lee, Sang-Myeong (Southern Forest Research Center, Korea Forest Research Institute) ;
  • Han, Sang-Sub (Department of Forest Resources, Chonbuk National University) ;
  • Cha, Byeong-Jin (Department of Plant Medicine, Chungbuk National University)
  • 임태헌 ((주) 삼호유비 농생명과학연구소) ;
  • 이동운 (경북대학교 생물응용학과) ;
  • 최용화 (경북대학교 식물자원학과) ;
  • 이상명 (국립산림과학원 남부산림연구소) ;
  • 한상섭 (전북대학교 산림자원학과) ;
  • 차병진 (충북대학교 식물의학과)
  • Published : 2009.09.30


In 2008, 110 isolates of Colletotrichum gloeosporioides were obtained from infected twigs of persimmon collected at Sangju and five fungicides (prochloraz manganese complex, tebuconazole, mancozeb+myclobutanil, fluquinconazole+prochloraz, and tebuconazole+tolyfluanid) were evaluated to determine their growth on fungicide-medium. Among them, the mycelial growth of 97.3 and 98.2% of isolates was inhibited over 91% in response to prochloraz ($250\;{\mu}g/m{\ell}$) and tebuconazole ($125\;{\mu}g/m{\ell}$), respectively, compared to untreated control. In response to mancozeb+myclobutanil, fluquinconazole+prochloraz, and tebuconazole+tolyfluanid, isolates of 96.4, 99.1 and 96.4% of them were inhibited by fungicides, respectively. Isolates showed the highest sensitivity to fluquinconazole+prochloraz among 5 fungicides. The correlation between tebuconazole and tebuconazole+tolyfluanid was higher (r=0.85).


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