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从显微镜检得知PDA培养基沉淀物来自马铃薯和琼脂的植物细胞.在多年实践中发现,马铃薯煮汁经过速冻结冰后再解冻时,汤汁中的薯细胞会聚成棉絮状沉淀.经过滤即可得基本无沉淀的澄清薯汁.方法简单易行,初学者亦易掌握.现将具体做法介绍如下:1 按常规将马铃薯细切成黄豆粒大,计量加水煮沸20分钟,用一层粗纱布或网纱过滤,待60℃左右时装在清洁的废矿泉水塑胶瓶内盖紧,冷却后置冰箱冷冻室内
From the microscopic examination of PDA medium sediments from potato and agar plant cells found in many years of practice, the potato juice after freezing and thawing after thawing, the broth in the potato cells converge into a cotton-like precipitate that is filtered The method is simple, easy to grasp for beginners. Specific practices are introduced as follows: 1 according to the conventional potato will be cut into large soybeans, measuring water boil for 20 minutes, with a thick layer Gauze or gauze filter, to be around 60 ℃ in the clean plastic waste mineral water bottle tightly closed, set the refrigerator freezer after cooling