Abstract
Following the elucidation of the gibberellin (GA) metabolic pathways from GA12-aldehyde, there is now considerable interest in the enzymes that catalyze the steps in these pathways. The enzymes that catalyze the post-GA20 steps (Fig. 1) in the early-13-hydroxylation pathway are of particular interest in view of the evidence that GA1 and possibly GA3 are the endogenous GAs active per se for stem elongation in maize seedlings.1–5 No studies of the enzymes for these post-GA20 conversions have been published for vegetative tissue (but see Chapter 3 by Phinney et al. in this volume). Current information on the characterization of these enzymes comes from developing seeds.
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Smith, V.A., Albone, K.S., MacMillan, J. (1991). Enzymatic 3β-Hydroxylation of Gibberellins A20 and A5 . In: Takahashi, N., Phinney, B.O., MacMillan, J. (eds) Gibberellins. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-3002-1_7
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DOI: https://doi.org/10.1007/978-1-4612-3002-1_7
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