The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Control of Ginseng Damping-off by Streptomyces sp. A75 and A501

Streptomyces sp. A75와 A501 균주의 인삼 잘록병에 대한 방제효과

  • Lee, Sang Yeob (Agricultural Microbiology Division, National Academy of Agricultural Science) ;
  • Song, Jaekyeong (Agricultural Microbiology Division, National Academy of Agricultural Science) ;
  • Yun, Bong-Sik (Division of Biotechnology, College of Environmental and Bioresource Sciences, Chonbuk National University) ;
  • Park, Kyeong hun (Ginseng Research Division, National Institute of Horticultural and Herbal Science) ;
  • Kim, Jeong Jun (Agricultural Microbiology Division, National Academy of Agricultural Science) ;
  • Han, Ji Hee (Agricultural Microbiology Division, National Academy of Agricultural Science)
  • 이상엽 (국립농업과학원 농업미생물과) ;
  • 송재경 (국립농업과학원 농업미생물과) ;
  • 윤봉식 (전북대학교 환경생명자원대학 생명공학부) ;
  • 박경훈 (국립원예특작과학원 인삼과) ;
  • 김정준 (국립농업과학원 농업미생물과) ;
  • 한지희 (국립농업과학원 농업미생물과)
  • Received : 2016.09.07
  • Accepted : 2016.11.25
  • Published : 2016.12.30
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Abstract

Streptomyces sp. A75 and A501 inhibited the mycelial growth of pathogenic Rhizoctonia solani and Pythium sp., which cause the ginseng disease known as damping-off. Three methods were evaluated for the control of these pathogens, using a mixture of the culture broths from Streptomyces sp. A75 and A501. The methods tested were seed dipping with 50-fold diluted broth, drenching of soil with 100-fold diluted broth after sowing, and combined seed dipping and drenching. These methods reduced the incidence of ginseng damping-off caused by R. solani by 81.3%, 84.8%, and 32.2% and that caused by Pythium sp. by 51.0%, 52.1%, and 75.3%, respectively. Based on these results, the combination of seed dipping and soil drenching after sowing using a mixture of the culture broths from Streptomyces sp. A75 and A501 effectively reduced the incidence of damping-off in ginseng.

Streptomyces sp. A75와 A501 균주는 인삼 잘록병을 일으키는 R. solani와 Pythium sp.의 균사 생장을 억제하였다. 인삼 잘록병 R. solani에 대하여 Streptomyces sp. A75와 A501 균주의 배양액을 혼합한 50배 희석액에 종자 침지처리, 100배 희석액의 관주처리와 종자 침지처리(50배) + 관주처리(100배)는 81.3%, 84.8%와 32.2%의 방제 효과를 각각 나타내었다. 인삼 잘록병 Pythium sp.에 대하여 Streptomyces sp. A75와 A501 균주의 배양액을 혼합한 50배 희석액에 종자 침지처리, 100배 희석액의 관주처리와 종자 침지처리(50배) + 관주처리(100배)는 51.0%, 52.1%, 75.3%의 방제효과를 각각 나타내었다. 이들 결과에서 Streptomyces sp. A75와 A501 균주의 배양한 혼합액으로 종자 침지한 후 관주처리가 인삼 잘록병 발생을 효과적으로 감소시켰다.

Keywords

References

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