STUDIES ON PHYSIOLOGICAL AND BIOCHEMICAL CHARACTER IN SUSPENSION CULTURE OF BERBERIS JULIANAE SCHNEID CELLS Ⅰ.Relationship between cell growth and changes in the conductivity and peroxidase activity of cultured medium

The present paper reports the relationship between gzowth of Berberis julianae cells and changes of conductivity, soluble sugars, pH values and peroxidase activities of the cultured medium, It has been shown that the cell growth is inversely correlated with the changes of the soluble sugars and conductivity of the cultured medium. It is, howeyer, that the increases of cell dry weight and peroxidase activities proceed in parallel, This parameter can be used for determination biomass growth of plant cell cultures in bioreactor.