Title : Flavanone 3-hydroxylase transcripts and flavonol accumulation are temporally coordinate in maize anthers.

Pub. Date : 1995 May

PMID : 7773305






3 Functional Relationships(s)
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1 Flavanone 3-hydroxylase (F3H) activity is necessary for the production of both flavonols and anthocyanins. Flavonols Flavanone 3-dioxygenase 1 Zea mays
2 Flavanone 3-hydroxylase (F3H) activity is necessary for the production of both flavonols and anthocyanins. Flavonols Flavanone 3-dioxygenase 1 Zea mays
3 Slot blot analysis showed that F3H transcript levels in young seedlings are increased by high fluence-rate white light treatment in the presence of the anthocyanin regulatory gene -r. HPLC analysis of extracts from developmentally staged anthers showed that flavonol accumulation begins at the uninucleate microspore stage, continues until maturity, and is not controlled by -r. When the expression pattern of several flavonoid biosynthetic genes was analyzed during microsporogenesis, only F3H transcript accumulation was coordinate with the appearance of flavonols in anthers. Flavonols Flavanone 3-dioxygenase 1 Zea mays