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由于橙红色放线菌形成不同类型的抗菌素,不但强烈抑制格兰氏阳性细菌及许多植物病原真菌的生长,同时还消解生长了2—3天的细菌细胞及真菌菌丝,所以这一类群菌很引起我们的重视。最近一年来,在以往工作的基础上又收集了200余株橙红色放线菌,并进行分类和分类单位与其所产抗菌素的关系的研究。分类研究的结果表明:其中61株属于短轮生放线菌。这类菌的特点是孢子丝直而短,一二级轮生。基内菌丝体橙色至红色。气生菌丝体粉白、橙红色或红色。在有机培养基内产生褐色素,合成培养基无色或染为黄色、红褐色、蓝紫色。
Because of the different types of antibiotics that act on the orange-red actinomycetes, they not only strongly inhibit the growth of Gram-positive bacteria and many plant-pathogenic fungi but also digest bacterial cells and fungal mycelia that grow for 2-3 days. Therefore, It is caused by our attention. In the recent year, more than 200 strains of actinomycetes were collected on the basis of previous work, and the relationship between the classification and classification units and the antibiotics they produced was studied. The results of classification studies showed that 61 strains belonged to Actinomyces rotundiforme. These bacteria are characterized by spores straight and short, one or two rotation. Mycelia in base orange to red. Airy mycelium pink, orange or red. Produce brown pigment in organic medium, synthetic medium colorless or dyed yellow, reddish brown, blue-purple.