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本文对植物病害的重要生防因子之一链霉菌作了综述总结。人们利用链霉菌对真菌、细菌和线虫引起的植物病害进行了广泛的研究，我们的实验室、温室和大田试验结果表明，从自然界马铃薯疮痂病抑制性土壤中分离出来的链霉菌系显著地减轻马铃薯疮痴病害。本文还对马铃薯疮痂病的生防机制进行了探讨，并对链霉菌的分类学地位作了回顾总结。
This article summarizes the streptomyces which is one of the important biocontrol factors of plant diseases. Streptomyces has been extensively studied for plant diseases caused by fungi, bacteria and nematodes. Our laboratory, greenhouse and field trials show that Streptomyces isolated from naturally occurring potato scab-resistant soils is significantly reduced Potato sore fights disease. In this paper, the mechanism of biocontrol of potato scab was also discussed, and the taxonomic status of Streptomyces was reviewed.