SESQUITERPENE LACTONES FROM IN VITRO CULTURES OF THE LIVERWORT RICCIOCARPOS NATANS

Abstract

  From in vitro cultures of the liverwort Ricciocarpos natans the two new sesquiterpene lactones ricciocarpin A and ricciocarpin B were isolated. The fresh weight and the dry weight of cultured liverwort could be increased to the twelve-fold amount within 24 days.