以大肠杆菌、金黄色葡萄球菌、根霉、毛霉等为指示菌，考察不同紫草素添加量对紫草涂膜剂抑菌活性的影响。

E. coli, Staphylococcus aureus, Rhizopus, Mucor, etc. were the indicators. This essay investigated the effect of different alkannin content on bacteriostatic activity of the Lithospermum plastic.

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本研究以重寄生链霉菌PR 和F46 为出发菌株，以靶标病原菌为指示菌，以紫外线为诱变因子，对它们进行了诱变改良研究。

The spores of hyperparasitic Streptomyces strains PR and F46 were irradiated with UV light to improve the control effects against plant diseases.

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