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Blue flower colouration

Blue flowers are rare in nature,[citation needed] and despite many attempts, blue roses, carnations and chrysanthemums in particular cannot not be produced by conventional breeding techniques. Blue colour in flower petals is caused by delphinidin, a type of anthocyanin, which are a class of flavonoids.

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Mechanisms

FlavonoidsRutinQuercetinFerulic acidHydrogen bond
14 related topics

Molecular basis

Flavonoid 3'5'-hydroxylase
1 related topics

Cultivation

Suntory
1 related topics

Overview

Blue rosesCarnationsChrysanthemumsDelphinidinAnthocyanin
9 related topics

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Blue flower colouration

Nodes30
Edges29
Triples2
Avg. degree1.93
Density0.066667
Components1

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Important terminology

blue anthocyanin colour flower delphinidin flowers type roses ions pigments color f3'5'h citation needed metal also red pigment ph petals

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SubjectPredicateObjectConfidenceSrc
certain species of Tulipa display blue color only in some petal sectionsinstance ofbecause at least two free hydroxyl groups in the B-ring are necessary to be present.Some flowers0.80text
such as the perianthinstance ofbecause at least two free hydroxyl groups in the B-ring are necessary to be present.Some flowers0.80text

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