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Triphosphopyridine Nucleotide-linked Glyceraldehyde Phosphate Dehydrogenase in a Non-Photosynthetic Plant Tissue

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Abstract

IT has been established that, whereas the usual diphosphopyridine nucleotide (DPN)-linked glyceraldehyde-phosphate dehydrogenase is found generally distributed in higher plant tissues, a separate enzyme, specifically requiring triphosphopyridine nucleotide (TPN) as coenzyme, is restricted to leaves1–4. The distinctive association of the TPN-glyceraldehyde phosphate dehydrogenase with the photosynthetic apparatus and the specificity for TPN shown in some types of photosynthetic phosphorylation have encouraged the view that the reductive step in hexose synthesis in leaves is mediated by this enzyme.

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Authors and Affiliations

  1. Department of Biological Sciences, Purdue University, Lafayette, Indiana, U.S.A.

    C. R. BENEDICT & H. BEEVERS

Authors
  1. C. R. BENEDICT
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  2. H. BEEVERS
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BENEDICT, C., BEEVERS, H. Triphosphopyridine Nucleotide-linked Glyceraldehyde Phosphate Dehydrogenase in a Non-Photosynthetic Plant Tissue. Nature 191, 71–72 (1961). https://doi.org/10.1038/191071a0

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