TRITERPENOIDS FROM CALLUS-TISSUE OF ACTINIDIA-POLYGAMA

Callus was induced from the fruit galls of Actinidia polygama and the regenerated plants from the callus tissue were cultured. The formation of triterpenoids in the callus was confirmed. Eight triterpenoids con taining two new ones were isolated from the callus. The triterpenoid c omposition found in the callus tissue was compared with those in the r egenerated and natural plants. The differences in the metabolic abilit y of the callus tissue and regenerated plants are also discussed.