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Copepod Acartia-Tonsa; Food Quality; Fresh-Water; Daphnia-Magna; Sp-Nov; Autotrophic Picoplankton; Crypthecodinium-Cohnii; Marine Dinoflagellate; Trophic Modification; Gyrodinium-Dominans
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Full-Text Articles in Life Sciences
Species-Specific Differences In Long-Chain N-3 Essential Fatty Acid, Sterol, And Steroidal Ketone Production In Six Heterotrophic Protist Species, Fle Chu, Ed Lund, Pr Littreal, Ke Ruck, E Harvey
Species-Specific Differences In Long-Chain N-3 Essential Fatty Acid, Sterol, And Steroidal Ketone Production In Six Heterotrophic Protist Species, Fle Chu, Ed Lund, Pr Littreal, Ke Ruck, E Harvey
VIMS Articles
We investigated the capability and species-specific differences in long-chain n-3 essential fatty acid (LCn-3EFA), sterol, and steroidal ketone production of 6 heterotrophic protists: 3 thecate dinoflagellates (Cryptoperidiniopsis brodyi, Pfiesteria piscicida, and Luciella masanensis), 1 athecate dinoflagellate (Amphidinium longum), 1 herbivorous ciliate (Strombidinopsis sp.), and 1 bacterivorous ciliate (Uronema sp.) by feeding them algae (Rhodomonas salina or Dunaliella tertiolecta) or bacteria. The 3 thecate species did not convert algal sterols to other usual and common sterols. Instead, they produced sterols and steroidal ketones, such as dinosterol, dinostanol, dinosterone, and dinostanone, usually found in autotrophic dinoflagellates when fed R. salina or D. …