Methods: The molecular weight of products from bio-transformation of lovastatin was determined by HPLC/MS.
方法：应用HPLC/MS技术测定转化产物的相对分子质量。
The fractionation procedures, mineralization of soil organic sulphur as well as the transformation and bio availability of added sulfur in soil were all discussed.
明确了土壤有机硫形态的分级方法、有机硫的矿化及其影响因素以及外源无机硫和有机硫在土壤中的转化及生物有效性。
But the same as nuclear transformation, plastid transformation also has the problems of bio-safety of antibiotic markers and development obstacles due to the overexpression of foreign gene.
但同细胞核转基因一样，叶绿体转基因也存在抗生素标记的生物安全性和外源基因的过量表达对植物正常生长发育的影响的问题。
But the same as nuclear transformation, plastid transformation also has the problems of bio-safety of antibiotic markers and development obstacles due to the overexpression of foreign gene.
但同细胞核转基因一样，叶绿体转基因也存在抗生素标记的生物安全性和外源基因的过量表达对植物正常生长发育的影响的问题。
应用推荐