Excitation of System I and System II in Photosynthesis as a Possible Control Mechanism of Glycolate Metabolism in the Blue-Green Alga Anacystis nidulans |
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| Authors: | L SØRENSEN AA T HOLMEN P HALLDAL |
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| Institution: | Botanical Laboratory, University of Oslo, Box 1045, Blindern, Oslo 3, Norway |
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| Abstract: | Photosynthetic enhancement studies performed at 619 nm (excitation of Systems I and II) and at 446 nm (mainly excitation of System I) revealed an 18% photosynthetic enhancement simultaneously with a 31% reduction in glycolate excretion. This observation supports the hypothesis that some glycolate may be consumed in an oxidation process associated with System I when System II is poorly excited and the supply of electrons from the water splitting process of photosynthesis is low. |
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