Fermentative Metabolism of Chlamydomonas reinhardtii: II. Role of Plastoquinone |
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Authors: | Gfeller R P Gibbs M |
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Affiliation: | Institute for Photobiology of Cells and Organelles, Brandeis University, Waltham, Massachusetts 02254. |
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Abstract: | Evidence is presented to substantiate a chloroplastic respiratory pathway in the green alga, Chlamydomonas reinhardtii, whereby reducing equivalents generated during the degradation of starch enter the thylakoidal chain at the plastoquinone site catalyzed by NADH-plastoquinone reductase. In this formulation, the reduced plastoquinone is oxidized either by the photoevolution (photosystem I) of H2 under anaerobic conditions or by O2 during dark respiration. |
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