Plant Hormones and the Biosynthesis of Gibberellins: The Early-13-Hydroxylation Pathway Leading to GA1

  • Bernard O. Phinney
  • Clive R. Spray
Part of the Recent Advances in Phytochemistry book series (RAPT, volume 24)


This report will briefly review the gibberellin (GA) biosynthetic pathway, from mevalonic acid (MVA) to ent-kau-rene, to GA12-aldehyde, to the C19 gibberellins. Emphasis will be given to the early-13-hydroxylation pathway, a branch pathway from GA12-aldehyde that leads to the bioactive gibberellin, GA1. The use of GA mutants in the analysis of GA biosynthesis will be discussed. Thus it is not the purpose of this paper to give a detailed analysis of the GA biosynthetic pathway, nor to give an analysis of the chemistry of this interesting class of natural products, nor to review the physiology of the gibberellins.


Internode Length Mevalonic Acid Dwarf Mutant Plant Growth Substance Gibberellin Biosynthesis 
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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • Bernard O. Phinney
    • 1
  • Clive R. Spray
    • 1
  1. 1.Department of BiologyUniversity of CaliforniaLos AngelesUSA

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