국내산 수목 추출물의 항진균 및 살충활성 = Antifungal and Insecticidal Activity of Methanol Extract from 11 Korean Wood Species

국문 초록 (Abstract)

유기질 문화재 보존 천연 살생물제 개발을 위한 후보물질 조사를 위해 국내 자생하는 11종 수목을 대상으로 각 수목 메탄올 추출물의 9종 목재오염균과 궐련벌레 성충에 대한 항진균 및 살충활성을 조사하였다. 항진균 활성은 목재부후균과 표면오염균에 대해 각각 paper disc soaking 방법과 feeder strip 방법으로 측정되었다. 그 결과, 수목 중 황벽(Phellodendron amurense) 메탄올 추출물은 5 mg/disc에서 Coniophora puteana, Lentinus lepideus, Tyromyces palustris 그리고 Aspergillus niger에 대해 우수한 항균활성을 나타냈다. 또한, 수목 메탄올 추출물의 살충활성은 topical application 방법에 의해 측정되었으며 특히 주목(Taxus cuspidata)과 전나무(Abies holophylla) 메탄올 추출물을 궐련벌레 성충에 25 ${\mu}g$/adult의 농도로 24시간 처리했을 때 56.7%의 치사율을 보였다. 위의 결과로부터 주목과 전나무 그리고 황벽 메탄올 추출물은 각각 충과 목재오염균에 의해 야기되는 생물학적 열화에 대한 유기질 문화재 보존을 위해 유용하게 사용가능할 것으로 사료된다.

다국어 초록 (Multilingual Abstract)

To investigate bioactive materials for development of natural conservative agent on organic cultural heritage, methanol extracts from 11 wood species which populate in Korea were screened for antifungal and insecticidal activity against 9 wood contaminant fungi and adult of Lasioderma serricorne. Antifungal activity of extracts was tested by using paper disc soaking method and feeder strip test against wood-rot fungi and wood surface contaminant fungi. Among these extracts, the most significant antimicrobial activity was observed from the extract of Phellodendron amurense at 5 mg/disc against Coniophora puteana, Lentinus lepideus, Tyromyces palustris and Aspergillus niger. The insecticidal activity of extracts was examined by topical application against L. serricorne adults. The extracts from Taxus cuspidata and Abies holophylla gave 56.7 % mortality at 25 ${\mu}g$/adult for 24 hr. From these result, the methanol extract from T. cuspidata, A. holophylla and P. amurense described could be useful for conservation of organic cultural heritage against biological deterioration by insect and wood contaminant fungi.

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