Ontology highlight
ABSTRACT:
SUBMITTER: de Vetten N
PROVIDER: S-EPMC15213 | biostudies-literature | 1999 Jan
REPOSITORIES: biostudies-literature
de Vetten N N ter Horst J J van Schaik H P HP de Boer A A Mol J J Koes R R
Proceedings of the National Academy of Sciences of the United States of America 19990101 2
The substitution pattern of anthocyanin pigments is a main determinant of flower color. Flavonoid 3',5'-hydroxylase (F3'5'H) is a cytochrome P450 enzyme (Cyt P450) that catalyzes the 3', 5'-hydroxylation of dihydroflavonols, the precursors of purple anthocyanins. Species such as rose and carnation lack F3'5'H activity and are, therefore, unable to generate purple or blue flowers. Petunia, on the other hand, contains two loci, termed hf1 and hf2, that encode a Cyt P450 with F3'5'H activity. Here ...[more]