Oxidation of phosphohydroxypyruvate and hydroxypyruvate: physiological implications in plants

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1979 English Publisher:Canadian Science PublishingJournal:Canadian Journal of Botany, volume 57, pages 1-3 (issn: 0008-4026,

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Authors: L. S. Daley; H. Max Vines; R. G. S. Bidwell;

doi: 10.1139/b79-001

Oxidation of phosphohydroxypyruvate and hydroxypyruvate: physiological implications in plants

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Abstract

Rates of nonenzymic oxygen consumption by phosphohydroxypyruvate, hydroxypyruvate, and phosphoglyceric acid were compared. Relative rates of 1:20:0 were found at physiological pH. The results support the occurrence of phosphohydroxypyruvate metabolism that may contribute to photorespiration, and the presence of a serine biosynthetic pathway via phosphoserine in plants.

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