二氢黄酮

二氢黄酮类化合物属微黄酮类物质，是一类在自然界广泛分布的多酚类物质。

As one kind of flavone family compounds , Flavanone is the plant second metabolites and distributed widespread in nature .

方法：生物合成。B为黄酮；C为二氢黄酮醇；

Method : Biosynthesis . compound B were flavones - , compound C were flavanonols ;

二氢黄酮醇4-还原酶基因（DFR）与花色的修饰

Dihydroflavonol 4-Reductase Gene ( DFR ) and Flower Color Modulation

补骨脂二氢黄酮和补骨脂异黄酮的平均回收率分别为94.9%和96.2%；RSD分别为3.1%和3.6%。

The average recovery of bavachin and corylin was 94.9 % and 96.2 % , and RSD was 3.1 % and 3.6 % respectively .

通过对水稻4号染色体一段323kb的序列测定和分析，在其中56kb的区域内发现了一个由7个编码二氢黄酮醇还原酶（DFR）类似蛋白基因组成的基因簇。

Sequencing analysis of the 323 kb contig of rice chromosome 4 identified a gene cluster encoding 7 dihydroflavonol-4-reductase ( DFR ) - like proteins within a 56 kb region .

植物二氢黄酮醇4-还原酶基因的研究进展

Research Advances on Dihydroflavonol 4-Reductase Gene

结论首次确定了6个二氢高异黄酮（Ⅰ~Ⅳ）的立体构型。

CONCLUSION The absolute configuration of 6 homoisoflavonoids ((ⅰ - ⅳ)) have been determined for the first time .

研究了由基本化工原料2，4，6－三甲氧甲氧基苯乙酮和3，4－二甲氧甲氧基苯甲醛合成二氢黄酮醇的方法，并对有关问题进行了理论探讨。

An investigation into the synthesis of taxifolin from 2,4,6 tri ( methoxymethoxy ) acetophenone and 3,4 di ( methoxymethoxy ) phenyl aldehyde is made , and a relevant discussion is also made .