Vitamin Content of Marine Plankton


THE synthesis of vitamin A in Nitzschia and other organisms grown in cultures of artificial sea-water (Jameson, Drummond, and Coward, Biochem. J., 16; 1922, and subsequent workers) has constituted the main evidence for assuming that marine organisms rely upon phytoplankton for their supplies of vitamins. A search for vitamin D in the same diatom (Leigh-Clare, Biochem. J., 21; 1927) proved unsuccessful; and little further attention has been given either to the possible presence and rôle of vitamins A and D in planktonic organisms or to the origin of the exceptionally rich stores found in the cod's liver.

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DRUMMOND, J., GUNTHER, E. Vitamin Content of Marine Plankton. Nature 126, 398 (1930).

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