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- W911098982 abstract "6개 고추재배지의 근권 및 해안가 토양으로부터 고추 역병균(Phytophthora capsici)과 벼 도열병균(Magnaporthe grisea)에 길항효과가 있는 53개의 방선균을 분리하였다. 분리된 방선균 중에서 고추 역병균의 균사생장을 억제시켜 5 mm 이상 저지원을 형성하는 32균주를 선발하여 이들 균주의 균총형태, 색깔 등에 따라 20군으로 유별하였다. 이들 길항방선균의 고추 역병균에 대한 길항효과는 균주간에 매우 다양하여 V-8 juice agar에서 5.7-17.5, tryptic soy agar에서는 2.5-l7mm의 저지효과를 보였다. 몇가지 방선균의 길항효과는 두 배지에서 상당히 다르게 발현되었다. 길항균들은 비교적 넓은 항진균성 스펙트럼을 나타내었으나, 세균에 대해서는 Pseudomonas solanacearum을 제외하고는 항균작용이 거의 없었다. 길항방선균 배양여액의 butanol 추출액이 고추 역병균과 벼도열병균의 균사생장을 억제하는 것으로 보아서 이들 길항균이 항균물질을 생성함을 강하게 시사하고 있다. 몇가지 길항방선균의 배양여액은 고추 역병방제 효과가 뚜렷하였다. 【Fifty-three actinomycetes antagonistic to Phytophthora capsici and Magnaporthe grisea were isolated from rhizosphere soils in six pepper-growing areas and ashore soils. Thirty-two antagonistic actinomycetes, showing inhibition zone larger than 5 mm, were classified into 20 groups according to their colony morphology and color. The antagonistic activity against P. capsici greatly varied, which showed inhibition zone sizes in the ranges from 5.7 to 17.5 mm on V-8 juice agar and from 2.5 to 17 mm on tryptic soy agar. The antagonistic activity of some actinomycetes tested was remarkably different between the two test media. The antagonists showed a relatively broad antifungal spectrum, but their antibacterial activity was negligible, except for Pseudomonas solanacearum. Butanol extracts of culture filtrates from antagonistic actinomycetes inhibited mycelial growth of P. capsici and M. grisea, thereby confirming strongly antibiotic production in culture. Culture filtrates of some antagonistic actinomycetes completely inhibited Phytophthora blight in pepper plants.】" @default.
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- W911098982 title "Isolation of Antibiotic-Producing Actinomycetes Antagonistic to Phytophthora capsici from Pepper-Growing Soils" @default.
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