ISOLATION, LOCALIZATION AND BIOSYNTHESIS OF CRASSIN ACETATE IN PSEUDOPLEXAURA POROSA (HOUTTUYN)

摘要: 1. The particulate portion of a homogenate the gorgonian Pseudoplexaura porosa (Houttuyn) can be separated into fractions by repeated centrifugation and differential resuspension.2. One these is crystalline has been identified as crassin acetate, diterpene lactone, infrared absorption original crystals melting point determination after recrystallization.3. Histological sections demonstrate that acetate are extracellur, in part, to gorgonain tissues, toto, symbiotic zooxanthellae this organism. However, occur association with endoderm containing zooxanthellae, thus suggesting product host-zooxanthellae interaction.4. Quantitative determinations show minimum concentration 10% organic dry weight cortex. It was also found cortex from both youngest oldest parts colony contain essentially equal concentrations cr...