Gibberellin Biosynthesis and the Regulation of Plant Development

Abstract Gibberellins (GAs) form a large family of plant growth substances with distinct functions during the whole life cycle of higher plants. The rate of GA biosynthesis and catabolism determines how the GA hormone pool occurs in plants in a tissue and developmentally regulated manner. With the a...

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Bibliographic Details
Published in:Plant biology (Stuttgart, Germany) Germany), 2006-05, Vol.8 (3), p.281-290
Main Authors: Pimenta Lange, M. J., Lange, T.
Format: Article
Language:English
Subjects:
Arabidopsis
Arabidopsis - enzymology
Arabidopsis - genetics
Arabidopsis - growth & development
biosynthesis
Cucurbita - enzymology
Cucurbita - genetics
Cucurbita - growth & development
development
Gene Expression Regulation, Developmental
Germination - physiology
Gibberellin
Gibberellins - biosynthesis
Gibberellins - physiology
oxidases
Oxygenases - genetics
Plant Growth Regulators - biosynthesis
Plant Growth Regulators - physiology
Plants, Genetically Modified - growth & development
pumpkin
Review Article
Seedlings - growth & development
Seeds - growth & development
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Summary:Abstract Gibberellins (GAs) form a large family of plant growth substances with distinct functions during the whole life cycle of higher plants. The rate of GA biosynthesis and catabolism determines how the GA hormone pool occurs in plants in a tissue and developmentally regulated manner. With the availability of genes coding for GA biosynthetic enzymes, our understanding has improved dramatically of how GA plant hormones regulate and integrate a wide range of growth and developmental processes. This review focuses on two plant systems, pumpkin and ARABIDOPSIS, which have added significantly to our understanding of GA biosynthesis and its regulation. In addition, we present models for regulation of GA biosynthesis in transgenic plants, and discuss their suitability for altering plant growth and development.
ISSN:1435-8603
1438-8677
DOI:10.1055/s-2006-923882