Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Control Effects of Indole Isolated from Xenorhabdus nematophila K1 on the Diseases of Red Pepper

Xenorhabdus nematophila K1 유래물질 인돌의 고추 병해 방제 효과

  • Jeon, Mi-Hyeon (School of Bioresource Sciences, Andong National University) ;
  • Cheon, Won-Su (School of Bioresource Sciences, Andong National University) ;
  • Kim, Yong-Gyun (School of Bioresource Sciences, Andong National University) ;
  • Hong, Yong-Pyo (Department of Applied Chemistry, Andong National University) ;
  • Yi, Young-Keun (School of Bioresource Sciences, Andong National University)
  • 전미현 (안동대학교 생명자원과학부) ;
  • 천원수 (안동대학교 생명자원과학부) ;
  • 김용균 (안동대학교 생명자원과학부) ;
  • 홍용표 (안동대학교 응용화학과) ;
  • 이영근 (안동대학교 생명자원과학부)
  • Received : 2011.12.08
  • Accepted : 2012.03.20
  • Published : 2012.04.30
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Abstract

Indole compound is a bacterial metabolite synthesized and released by an entomopathogenic bacterium, Xenorhabdus nematophila K1. The antibiotic activity was evaluated against plant pathogens, such as Phytophthora blight and anthracnose of red pepper. Indole significantly suppressed mycelial growth of Phytophthora blight and anthracnose pathogens. Under natural sunlight conditions, indole maintained the antifungal activity for at least sixty days. The activity was not affected under the condition of soil-water. When the indole suspension was applied to surface soil before transplanting of red pepper seedlings and was then regularly sprayed to the foliage of the plants with ten days interval, it resulted in significant reduction of the disease occurrences (Phytophthora blight, anthracnose, soft rot, and black mold) by about 30%. These results suggest that indole can be used to control Phytophthora blight and anthracnose of red pepper.

Xenorhabdus nematophila K1의 대사물질 인돌의 고추역병과 탄저병에 대한 농용살균제로의 개발 가능성을 검토하였다. 인돌은 역병균과 탄저병균의 균사신장을 강하게 억제하였다. 이러한 항균력은 자연상태의 태양 조사 조건 아래에서 60일 이상 유지되었으며, 토양수에서도 상실되지 않았다. 고추를 밭에 정식하기 전에 인돌 현탁액을 토양에 살포하고 10일 간격으로 고추의 지상부에 살포하여, 약 30%의 주요 병해 발생 감소를 가져왔다. 이러한 결과는 indole을 고추 역병과 탄저병 방제를 위해 사용할 수 있음을 의미한다.

Keywords

References

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  1. Control Effects of 3-(4-Hydroxyphenyl)-propionic Acid Isolated Xenorhabdus nematophila K1 against Phytophthora Blight and Anthracnose of Red Pepper vol.19, pp.3, 2013, https://doi.org/10.5423/RPD.2013.19.3.208
  2. Comparative Analysis of Benzylideneacetone-derived Compounds on Insect Immunosuppressive and Antimicrobial Activities vol.51, pp.3, 2012, https://doi.org/10.5656/KSAE.2012.06.0.035