Identification of an "in vivo" control point in the synthesis of starch in starchy-corn

Authors

  • Feliciano E.V. Flores
  • Michael Desmond Davies

DOI:

https://doi.org/10.1590/S1678-3921.pab1974.v9.17279

Keywords:

3-PGA (3-phosphoglycerate or 3-phosphoglyceric acid), PPi (inorganic pyrophosphate), ADPG-pyrophosphorylase (Adenosine diphosphate glucose pyrophosphorylase), reducing sugars, soluble sugars, sucrose

Abstract

The effect of 3-phosphoglycerate and inorganic pyrophosphate, known activator and inhibitor from in vitro studies of the enzyme ADPG-pyrophosphorylase, was determined in vivo using starchy-corn. The results suggest that above metabolites do modify the activity of the ADPG-pyrophosphorylase, and indicate that conclusions based on in vitro studies do operate in vivo, providing further evidence that this enzymatic step is an important control point in starch biosynthesis.

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How to Cite

Flores, F. E., & Davies, M. D. (2014). Identification of an "in vivo" control point in the synthesis of starch in starchy-corn. Pesquisa Agropecuaria Brasileira, 9(10), 159–163. https://doi.org/10.1590/S1678-3921.pab1974.v9.17279

Issue

v.9, n.10, 1974: Série Agronomia

Section

ERRATA