Flavonoid Metabolism discusses the biosynthesis and catabolism of flavonoids and their regulation in plants. Emphasis is placed on key regulatory enzymic steps in the two pathways leading to the flavonoid basic units as well as the overall pathway within the flavonoid group.

Flavonoid Metabolism focuses on the known cell-free enzymology at the C15 level, as well as isotopic tracer studies involving the still unknown enzymic steps.

Flavonoid Metabolism covers:

• The intra- and extra-cellular and tissue localization of the biosynthetic and presumed catabolic enzymes
• Transport of intermediates or final products
• The interaction or competition between primary and secondary metabolism
• The role of genetics and molecular biology
• Technological advances such as isotopes, paper and thin layer chromatography and tissue culture
• and more!

Contents

1. General Aspects of Chemistry and Metabolism of Flavonoids
2. Origin of Phenylpropanoid (C6-C3) and Acetate Units
3. Chalcone Synthase and Chalcone Isomerase: "Flavanone Synthase"
4. Biosynthesis of Flavanones and 3-Hydroxyflavanones (Dihydroflavonols): The "Grid" Pattern of Basic Hydroxylations of the B- and C-Rings
5. Flavone and Flavonol Pathways
6. Pathway to Proanthocyanidins (Condensed Tannins), Flavan-3-ols, and Unsubstituted Flavans
7. Anthocyanidin-Anthocyanin Pathway
8. Isoflavonoid Pathways
9. Chalcones, Dihydrochalcones, and Aurones
10. Biflavonoids
11. Secondary Changes: Recycling and Degradation of Flavonoids
12. Competitive Pathways in Secondary Metabolism
13. Regulation
14. Impact of Methodology on Flavonoid Metabolism
15. Metabolic and Evolutionary Aspects of the Basic Function of Flavonoids
16. General History of Studies of Flavonoid Metabolism

Index

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