Journal
PHYTOCHEMISTRY
Volume 71, Issue 10, Pages 1040-1049Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.phytochem.2010.04.016
Keywords
Flavonoid pathway; Dioxygenases; Flavonols; Anthocyanins; Arabidopsis thaliana
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Funding
- EU [CT-2004-513960]
- Deutsche Forschungsgemeinschaft
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Flavonols and conditionally also anthocyanins, aside from flavonols, are the predominant polyphenols accumulated in various tissues of the model plant Arabidopsis thaliana L In vitro experiments suggested that the dioxygenases involved in their biosynthesis, flavonol synthase and anthocyanidin synthase, are multifunctional enzymes showing distinct side activities. The in vivo relevance of the additional activities attributed to these enzymes, however, has remained obscure. In this review we summarize the most recent results and present final proof of the complementing activities of these synthases for flavonol and anthocyanidin formation in the model plant A. thaliana. The impact of their modification on the biosynthetic pathway and the pattern of flavonoids in different plant tissues are discussed. (C) 2010 Elsevier Ltd. All rights reserved.
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