SYNTHESIS AND METABOLISM OF CARBONYL-C14 PYRUVIC AND HYDROXYPYRUVIC ACIDS IN ALGAE

摘要

1. Pyruvic and hydroxypyruvic acids are metabolized by Scenedesmus.n2. The products of metabolism of pyriivic-2-C14 and hydroxypyruvic-2-C 14n14 acids are essentially identical to those of C 1402 fixations.n3. Lipids are rapidly formed in the light from both substrates. In the dark the major products are intermediates of the tricarboxylic acid cycle.n4. It does not appear likely that free hydroxypyruvic acid is a photos ynthetic intermediaten5. Tricarboxylic acid cycle intermediates are formed from exogenous pyruvate as fast in the light as in the dark.