Regulation of Carbohydrate Breakdown of Chlorella Mutant No. 20, Studied by ^<31>P NMR Spectroscopy and Enzymatic Analysis : 2. Regulation in the Presence of Exogenous Glucose

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概要

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• In the preceeding paper (Ruyters 1988) the regulation of blue light-stimulated carbohydrate degradation and respiration was investigated in cells of the chlorophyll-free Chlorophyll-free Chlorella mutant no. 20. Since some results are not in agreement with the common conception of control, for comparison the regulation of carbohydrate breakdown, especially that of its glycolytic pathway, was studied after addition of exogenous glucose to Chlorella mutant cells. Evidence is presented that principle regulatory mechanisms remain the same in blue light- as in glucose-stimulated metabolism. Pyruvate kinase is proven to be the control enzyme of the glycolytic pathway in Chlorella mutant no. 20, whereas there is no such indication for phosphofructokinase. The possible cause and consequence of the opposite changes in the ATP/ADP ratio for the regulation of carbohydrate breakdown are discussed, leading to the view that PEP plays a major regulatory role in Chlorella mutant no. 20, while the adenine nucleotides seem to be of minor importance.

• 日本植物生理学会の論文

著者

• Ruyters Guntergunter

  Faculty Of Biology Iv University Of Bielefeld

関連論文

• Regulation of Carbohydrate Breakdown of Chlorella Mutant No. 20, Studied by ^P NMR Spectroscopy and Enzymatic Analysis : 2. Regulation in the Presence of Exogenous Glucose

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