Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Inhibitory Effect of Garlic Extracts on Some Plant Pathogens

마늘추출액의 식물병원균에 대한 억제 효과

  • Seo, Sang-Tae (Dept. of Horticultural Environment, National Horticultural Research Institute, Rural Development Administration) ;
  • Lee, Jung-Sup (Dept. of Horticultural Environment, National Horticultural Research Institute, Rural Development Administration) ;
  • Park, Jong-Han (Dept. of Horticultural Environment, National Horticultural Research Institute, Rural Development Administration) ;
  • Han, Kyoung-Suk (Dept. of Horticultural Environment, National Horticultural Research Institute, Rural Development Administration) ;
  • Jang, Han-Ik (Dept. of Horticultural Environment, National Horticultural Research Institute, Rural Development Administration)
  • Published : 2004.12.01
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Abstract

Antimicrobial activity of garlic extracts of four local cultivars (Namdo, Goheung, Danyang and garlic imported from China) against several plant pathogenic bacteria and fungi was investigated. The garlic extracts exhibited marked in vitro antimicrobial activities against the Gram-positive and -negative bacteria as well as fungal pathogens. Of the four cultivars, two cultivars (Namdo and garlic imported from China) showed relatively good antimicrobial activities. Gram-positive bacteria, Clavibater michiganensis was most sensitive, whereas Burkholderia cepacia was the strong resistant towards garlic extracts. Results from the planta bioassays under greenhouse conditions indicated that garlic extracts significantly reduced the cucumber powdery mildew disease showing control value 59.7-61.9% compared with the nontreated controls.

4품종(남도마늘, 고흥마늘, 단양마늘, 중국산 수입마늘)의 마늘추출액의 식물병원세균과 진균에 대한 항균효과를 조사하였다. 실내실험에서 마늘추출액은 그람양성세균, 그람음성세균, 진균 모두에 좋은 항균효과를 나타내었다. 본 연구에 사용된 4품종의 마늘추출액 중 남도마늘과 중국산 수입마늘이 보다 좋은 항균효과를 나타내었다. 그람양성세균인 Clavibacter michiganensis가 마늘추출액에 가장 민감하였으며, Burkholderia cepacia가 가장 저항성이 컸다. 마늘추출액을 이용한 오이 흰가루병에 대한 항균효과 포장실험에서는 59.7${\sim}$61.9%의 방제가를 보여주었다.

Keywords

References

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