Studies on Formation of Stele Division and Accumulation of Gentiopicroside of Gentiana macrophylla Pall.' Root
秦艽根中柱裂分结构的发生及龙胆苦苷的积累研究

The formation of stele schizogenous structures,the accumulation parts of effective constituents,and the relationship between structure and accumulation of effective constituents in the root of Gentiana macrophylla Pall.were researched systematically by means of plant anatomy,histochemistry,analytical chemistry and modern instrumental analysis technique.The results showed that:(1) The occurrence of stele schizogenesis in the root was caused by the abnormal activities of the vascular cadmium and xylem parench...