11,118 strains of marine Actinomyces, 5,608 strains of marine bactetia and 508 strains of marine fungi were isolated from 128 sites in 12 regions. The result indicates that Actinomyces are mainly made of Steptomyces for about 95%,bacteria are chiefly composed of Vibrios for more than 90% and fungi largely consists of Penicillium for over 70%. Many isolates show great anti-microbial activity on pathogenic fungi or bacteria,most of which have important physiological activities such as anticancer,radio-resistant or immunity improving Besides,some isolates can produce proteinase or eicosa pantacnoic acid(EPA)%对12个地区128个定位点及5种海洋生物有机体的样品进行分离检测，共分离得到11118株放线菌、5608株海洋细菌、508株海洋真菌。鉴定结果表明：海洋放线菌中以链霉菌属为主，占海洋放线菌总数的95％；海洋细菌中以弧菌属为主，占海洋细菌总数的90％以上；海洋真菌中以青霉菌属为主，占海洋真菌总数的70％以上。在有关样品中多株有很强的抗菌活性，对病原真菌、病原细菌等有很强的抑制作用与杀灭作用；多株有抗癌、抗辐射、提高免疫力功能的生理活性物质；有的能产生蛋白酶或EPA。
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