PARTICULATE LIPID CLASS COMPOSITION OF 3 MARINE PHYTOPLANKTERS CHAETOCEROS-GRACILIS, ISOCHRYSIS-GALBANA (TAHITI) AND DUNALIELLA-TERTIOLECTAGROWN IN BATCH CULTURE

The green algae D. tertiolecta, the flagellate I. galbana and the diat om C. gracilis were grown in batch cultures. The organisms were analys ed for lipid class composition at the logarithmic and stationary growt h phases using the Chromarod-Iatroscan thin layer chromatography with flame ionization detection (TLC-FID) system. There were major differen ces in lipid class production among the organisms investigated, but fe w differences in lipid class distribution between log phase and statio nary phase cultures of D. tertiolecta and I. galbana. C. gra cilis dis played the general trend exhibited in diatom metabolism, which can be characterized by an increase in triacylglycerol synthesis in situation s of stress.