Title: Phosphate Control of Glycolysis in Higher Plants
Abstract: Pisum sativum seed extracts were used to measure the activities of several glycolytic enzymes and to test their response to orthophosphate. Of the enzymes involved in the conversion of glucose-1 phosphate to triose phosphate, the lowest activity was that of phosphofructokinase, indicating that this enzyme would be the principal control point. Aldolase activity exceeded that of phosphofructokinase under the assay conditions used. Orthophosphate stimulated phosphofructokinase and aldolase activities but had no significant effect on the activities of phosphoglucomutase and phosphohexoisomerase, and none on pyruvate kinase. The results support the postulate that a direct stimulation of phosphofructokinase by orthophosphate may be important for hl vivo regulation of glycolysis.
Publication Year: 1981
Publication Date: 1981-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 2
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