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3-deoxyanthocyanidin : ウィキペディア英語版
3-Deoxyanthocyanidin

The 3-Deoxyanthocyanidins and their glycosides (3-deoxyanthocyanins or 3-DA) are molecules with an anthocyanidins backbone lacking an hydroxyl group on carbon 3.
3-Deoxyanthocyanidins are yellow anthocyanidins that can be found primarily in ferns and mosses (Timberlake and Bridle, 1975, 1980),〔(Effect of substitution on the stability of 3-deoxyanthocyanidins in aqueous solutions, James G. Sweeny, Guillermo A. Iacobucci, 1983 )〕 in ''Sorghum bicolor''〔〔(Inclusions of flavonoid 3-deoxyanthocyanidins in Sorghum bicolor self-organize into spherical structures, NIELSEN Kirsten A.; GOTFREDSEN Charlotte H.; BUCH-PEDERSEN Morten J.; AMMITZBØLL Henriette; MATTSSON Ole; DUUS Jens Ø.; NICHOLSON Ralph L, 1986 )〕 and in purple corn (Nakatani et al., 1979)〔 (maíz morado).
3-Deoxyanthocyanidins are reported to be stable to color loss due to change in pH.〔(Behavior of 3-deoxyanthocyanidins in the presence of phenolic copigments, Joseph M. Awika, 2008 )〕 Synthetic 3-deoxyanthocyanidins with a carboxylate group at carbon 4 show unusually stable colorant properties at pH 7.〔
In ''Sorghum'', the ''SbF3'H2'' gene, encoding a flavonoid 3'-hydroxylase, seems to be expressed in pathogen-specific 3-deoxyanthocyanidin phytoalexins synthesis,〔(Differential Expression of Two Flavonoid 3'-Hydroxylase cDNAs Involved in Biosynthesis of Anthocyanin Pigments and 3-Deoxyanthocyanidin Phytoalexins in Sorghum, Chun-Hat Shih, Ivan K. Chu, Wing Kin Yip and Clive Lo, 2006 )〕 for example in ''Sorghum-Colletotrichum'' interactions.〔(Biosynthesis and regulation of 3-deoxyanthocyanidin phytoalexins induced during Sorghum-Colletotrichum interaction: Heterologous expression in maize. Chopra, Surinder Gaffoor, Iffa Ibraheem, Farag )〕
This category include :
* Apigeninidin
* Columnidin
* Diosmetinidin
* Luteolinidin
* Tricetinidin

==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「3-Deoxyanthocyanidin」の詳細全文を読む



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