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벼의 생엽절편을 이용한 병원균 억제물질의 대량 스크리닝 방법 개발

Development of a Method for High throughput Screening of Antagonistic Substances against Rice Pathogens using Rice Leaf Explants

  • 박샛별 (농촌진흥청 국립농업과학원 유전자분석개발과) ;
  • 이충환 (건국대학교 생명공학과) ;
  • 김태종 (국민대학교 임산생명공학과) ;
  • 강린우 (건국대학교 신기술융합학과) ;
  • 이병무 (농촌진흥청 국립농업과학원 유전자분석개발과) ;
  • 김정구 (농촌진흥청 국립농업과학원 유전자분석개발과)
  • Park, Sait-Byul (Genomics Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Lee, Choong-Hwan (Division of Bioscience and Biotechnology, Konkuk University) ;
  • Kim, Tae-Jong (Department of Forest Products and Biotechnology, Kookmin University) ;
  • Kang, Lin-Woo (Department of Advanced Technology Fusion, Konkuk University) ;
  • Lee, Byoung-Moo (Genomics Division, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Jeong-Gu (Genomics Division, National Academy of Agricultural Science, Rural Development Administration)
  • 투고 : 2011.10.18
  • 심사 : 2012.01.03
  • 발행 : 2012.03.28

초록

벼흰잎마름병을 억제하는 물질의 활성을 확인하기 위하여 벼 잎 생엽절편을 이용하는 새로운 스크리닝 방법을 개발하였다. 96 well plate에 잔토모나스 오라이자의 배양액을 분주하고 균등한 크기의 벼 잎 생엽절편을 배치한 후 효능을 확인하고자 하는 물질을 처리하였다. 흰잎마름병균을 억제하는 물질의 활성도는 벼 잎 생엽절편 병징의 면적율로 환산되었다. 물질에 의하여 병의 발생이 억제된 벼 잎 생엽절편은 병원균 배양액 내에서 건전한 녹색을 유지하였고 병이발생된 벼 잎 생엽절편은 황갈색 병징을 나타내었다. 이를 통하여 본 실험법이 빠르고 간편하며, 농도 의존적인 활성확인이 가능하고, 소량으로 다수 물질의 활성 여부를 동시에 평가할 수 있음을 확인하였다. 본 스크리닝 법은 벼흰잎마름병 뿐만 아니라 여타의 수인성 작물질병억제 활성을 확인하는 데 응용 가능성이 있을 것으로 생각된다.

A new method for the high throughput screening of antagonistic substances against rice pathogens using rice leaf explants was developed. This method can be used to confirm the activities of any compound or mixture suppressing rice bacterial blight (BB) before field tests. Xanthomonas oryzae pv. oryzae (Xoo) culture medium was distributed in 96 well plates with equally sized explants and the active compounds were added to the wells. The strength suppressing BB was converted into an area percent of the lesion on the rice explants. The explants under BB suppressing activity remained uninfected maintaining their actual green color, while infected explants exhibited pale yellow-colored lesions. Based on the results, this method seems to be faster and easier, dose-dependent, and can be performed all-at-once with a small amount of unspecified compounds. This method also has the potential to be applied to inspection activities for the suppression of other waterborne crop diseases.

키워드

참고문헌

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피인용 문헌

  1. Metabolomics-Based Chemotaxonomic Classification of Streptomyces spp. and Its Correlation with Antibacterial Activity vol.25, pp.8, 2012, https://doi.org/10.4014/jmb.1503.03005