Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Identification of Metabolites Derived from Streptomyces sp. S20-465 That Are Effective in Controlling Cucumber Anthracnose

오이 탄저병 방제에 효과적인 Streptomyces sp. S20-465 유래 대사물질 규명

  • Jiwon Kim (Division of Agricultural Microbiology, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Mee Kyung Sang (Division of Agricultural Microbiology, National Institute of Agricultural Sciences, Rural Development Administration)
  • 김지원 (농촌진흥청 국립농업과학원 농업생물부 농업미생물과) ;
  • 상미경 (농촌진흥청 국립농업과학원 농업생물부 농업미생물과)
  • Received : 2024.03.21
  • Accepted : 2024.06.07
  • Published : 2024.06.30
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Abstract

Cucumber (Cucumis sativus L.) is substantial economic importance in South Korea, with its cultivation occupying a significant portion of agricultural land. However, sustainable cucumber production requires effective management of various diseases affecting the crop yield. In this study, we explored the potential of Streptomyces sp. S20-465-derived metabolites in controlling cucumber anthracnose disease caused by Colletotrichum orbiculare. This study identified 4-hydroxy-4-methyl-2-pentanone as a potent antifungal compound present in the n-hexane extract of Streptomyces sp. S20-465 culture filtrate. This compound exhibited significant the disease reduction, demonstrating their potential as control agents. Our findings suggest that Streptomyces sp. S20-465-derived metabolite could serve as an effective tool for managing cucumber anthracnose, offering a sustainable approach to enhancing cucumber production. Further research into the application and efficacy of these compounds in agricultural system will be conducted.

오이(Cucumis sativus L.)은 국내에서 경제적으로 중요한 작물이며, 지속 가능한 생산을 위해서는 다양한 식물병을 효과적으로 관리해야 한다. 본 연구에서는 이전의 연구에서 선발한 오이 탄저병 억제 Streptomyces sp. S20-465가 생성하는 대사산물을 동정하고, Colletotrichum orbiculare에 의한 오이 탄저병 방제에 대한 효과를 규명하였다. Streptomyces sp. S20-465는 YEME 배지에서 효과적으로 생장, 포자 형성 및 항진균 활성이 있었으며, 배양 여과액의 n-hexane 추출물에 함유된 4-hydroxy-4-methyl-2-pentanone이 오이 탄저병을 효과적으로 억제하였다. 본 연구 결과는 Streptomyces sp. S20-465 유래 대사산물이 오이 탄저병 등 식물병 관리에 효과적인 소재로 활용될 수 있음을 제시하며, 이는 오이 생산을 지속 가능하게 향상시키는 방안이 될 수 있을 것이다.

Keywords

Acknowledgement

This work was supported by the National Institute of Agricultural Sciences (Project No. RS-2020-RD009033, PJ PJ01497802), Rural Development Administration, Republic of Korea.

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