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Le Rouge et le Noir: Where the black dahlia gets its color
Date:11/22/2012

unts of anthocyanins that are found in black dahlias. The flavonol contents of black dahlias increased slightly parallel to the decrease of flavones.

Heidi Halbwirth, lead author, emphasised that the black colour of dahlias is not due to increased activity of the anthocyanin pathway, but rather is the result of the intermediates being converted into anthocyanins at the expense of formation of flavones.

Halbwirth commented, "The molecular explanation for the specific suppression of flavone formation in the majority of black dahlias will be of interest for further research. As the dahlia is an octoploid plant and the presence of several alleles is expected, the simultaneous suppression of all FNS II isoenzymes indicates an effective mechanism that could be used for engineering plants with tailor-made flavone contents."
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Contact: Hilary Glover
hilary.glover@biomedcentral.com
44-020-319-22370
BioMed Central
Source:Eurekalert  

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