低盐浓度的WPM培养基尽管对不定芽诱导没有优势，但可维持再生不定芽的正常生长。
Low-salt medium (WPM), while had no advantages over other media on the induction of adventitious buds, supported the continuous growth of adventitious buds of Mandshurican ash.
制成的供微生物（包括病毒及类似品）或植物、人体、动物细胞生长或维持用的培养基。
Prepared culture media for the development or maintenance of microorganisms (including viruses and the like )or of plant, human or animal cells.
方法：应用无血清培养基采用小方瓶培养CHO细胞，观察细胞维持时间、培养过程的形态变化。
Methods:Culture CHO cells in serum-free media and then compare the maintainance time, morphological changes and hemagglutination titers of the cells in culture supernatant.
该培养基与商品化的无血清培养基比较，能够使细胞生长维持较长的时间，表达产物分泌量也相对较高。
In comparison with commercial SFM, it can maintain growth of CHO cell for much longer peroid and the expressing level of HBsAg is higher too.
该培养基与商品化的无血清培养基比较，能够使细胞生长维持较长的时间，表达产物分泌量也相对较高。
In comparison with commercial SFM, it can maintain growth of CHO cell for much longer peroid and the expressing level of HBsAg is higher too.
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