1.为了获取单一菌种,可以进行生化等试验鉴定,也可以观看到单一菌落的特种
2.菌种保存,纯化后的单一的菌落便于保存,如果不是单一菌种,很有可能发生菌种异化等
3.可以对纯化后的单一菌种进行进一步的利用,例如提取产物等
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