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Title:

Alterations of flavonoid biosynthesis in young grapevine (Vitis vinifera L.) leaves, flowers, and berries induced by the dioxygenase inhibitor prohexadione-Ca

Document type:
Zeitschriftenaufsatz
Author(s):
Puhl, Iva; Stadler, Florian; Treutter, Dieter
Abstract:
Prohexadione-Ca is a structural mimic of 2-oxoglutarate, and according to this property, it is able to inhibit dioxygenase enzymes, which require 2-oxoglutarate as a cosubstrate. Such enzymes are involved in flavonoid biosynthesis; therefore, prohexadione-Ca treatment leads to alterations in the flavonoid metabolism in grapevine tissues. Because of the fact that phenolic compounds often are responsible for enhanced plant resistance, modification of phenylpropanoid metabolism using elicitation c...     »
Keywords:
Chromatography, High Pressure Liquid; Dioxygenases/antagonists {&} inhibitors; Enzyme Inhibitors/pharmacology; Flavonoids/analysis/biosynthesis; Flowers/chemistry/metabolism; Fruit/chemistry/metabolism; Ketoglutaric Acids/pharmacology; Plant Leaves/chemistry/metabolism; Vitis/drug effects/growth {&} development/metabolism
Journal title:
Journal of agricultural and food chemistry
Year:
2008
Journal volume:
56
Journal issue:
7
Pages contribution:
2498--2504
Fulltext / DOI:
doi:10.1021/jf0727645
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