Soil microbial total DNA could not be obtained through DNA gel extraction kit after purification with 1% Sepharose containing 2% of PVP (polyvinylpyrrolidone) agarose gel electrophoresis.
含2 %PVP的1 %琼脂糖凝胶电泳纯化，用DNA凝胶回收试剂盒回收后没有得到纯化后的土壤微生物总DNA。
The main factors that affect the availability of Pb in soil are the total amount of Pb, soil nature, soil microbial, and plants growing on the soil, etc.
影响土壤铅的植物有效性的因素包括土壤铅全量、土壤理化性质、土壤微生物、高等植物等。
Objective To apply the microbial transformation to transforming the total saponins in the fruit of Panax ginseng (SFPG) and preparing ginsenoside compound K (C-K).
目的利用微生物转化法对人参果总皂苷（SFPG）进行生物转化，制备人参皂苷化合物K（C-K）。
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