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flavone |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.02 sec. |
flavonoidor flavoneOrganic compound, any member of a class of biological pigments containing no nitrogen that are found in many plants. They include anthoxanthins, which give yellow colours, often to flower petals, and anthocyanins, largely responsible for the red colouring of buds and young shoots and the purple and purple-red colours of autumn leaves. Their biological function is unknown; they may attract pollinators and seed dispersers. flavone [′fla‚vōn] (biochemistry) Any of a number of ketones composing a class of flavonoid compounds. C15H10O2A colorless crystalline compound occurring as dust on the surface of many primrose plants. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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A plant flavone, luteolin, induces expression of Rhizobium meliloti nodulation genes. The active constituents in gingko are believed to be flavone glycosides, and a number of terpenoids, including the sesquiterpene bilobalide and the diterpenoid ginkgolides A, B, and C. The anthocyanin and flavone look similar: Each contains a three-ring core. |
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