This study investigated ginsenosides and tissue characteristics of roots injured by physiological disorder, rusty and rough skin. After separation to cortex and stele parts of healthy, rusty(red) and rough sikn roots, respectively, the contents
of
saponin and ginsenosides were analyzed. And also, the histological and cytological characteristics of cortex and stele parts were investigated. Crude saponin contents were little different among healthy. rusty(red) and rough skin root, and
ginsenosides
as -Rgl, -Re and -Rb1 were detected both in stele and cortex part. The ratio of PT/PD showed about 1:1 in three kinds of root. In histological study, destoryed cells in epidermis of rusty(red) root, and those in epidermis and exodermis of rough
skin
root were observed. The cells in cortex of rusty(red) and rough skin root have generally nucleus with unfixed shape, unequal cell wall, large number of vacuole and mitochondria, and unidentified dark substances compared to healthy root. But in
cell
of
stele tissue, most of organells seem to be normal except a small number of cell in rough skin root.
|