Asian Journal of Turfgrass Science (아시안잔디학회지)

Turfgrass Society of Korea (한국잔디학회)
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Screening for Antifungal Activity of the Pine Extracts Against Fusarium circinatum

Fusarium circinatum에 대한 소나무류 추출물의 항균력 검정

  • Received : 2010.11.20
  • Accepted : 2010.12.10
  • Published : 2010.12.31
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Abstract

Fusarium circinatum is the causal agent of the pine disease commonly referred to as pitch canker. In this study, F. circinatum was isolated from the diseased Pinus rigida in the golf courses, Korea. The morphological characteristics and the molecular features of the isolates were investigated to identify the pathogen. Histone H3 gene and IGS rDNA region was analyzed and consequently the isolates identified as F. circinatum. All of them have the same sequences and the mating type was determined as MAT1-1. The inhibitory effect of the methanol extracts from the disease resistant pine species, Pinus koraiensis and Pinus densiflora and a susceptible species, P. rigida were evaluated against the isolate, F. circinatum. As a result, the extracts of P. koraiensis and P. densiflora showed higher antifungal activity than that of the susceptible, P. rigida.

Fusarium circinatum은 소나무류에 푸사리움 가지마름병을 유발하는 병원균으로 알려져 있다. 본 연구에서는 골프장의 리기다소나무로부터 병원균을 분리하였으며, 이들의 형태적인 특성을 관찰하고 분자생물학적인 방법을 이용하여 동정한 결과 F. circinatum 임을 확인하였다. 특히 histone H3 유전자와 IGS rDNA의 염기서열을 분석한 결과 분리된 균들의 염기서열은 동일하였으며, 유성생식(mating)에 관여하는 유전자를 분석한 결과 모두 MAT1-1 유형임을 확인하였다. 또한 푸사리움 가지마름병에 대한 감수성 수종인 리기다소나무를 비롯하여 저항성 수종인 잣나무와 소나무의 메탄올 추출물을 만들어 이들의 병원균에 대한 항균력을 검정하였다. 그 결과 저항성 수종인 잣나무와 소나무의 추출물에서 리기다소나무 보다 높은 항균력을 확인 하였다.

Keywords

References

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