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Distribution of Four Bioactive Flavonoids in Maize Tissues of Five Varieties and Correlation with Expression of the Biosynthetic Genes

文献类型： 外文期刊

作者： Zhang, Zhongbao 1 ; Liang, Zhibin 2 ; Yin, Longfei 1 ; Li, Qing X. 2 ; Wu, Zhongyi 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Agrobiotechnol Res Ctr, Beijing 100097, Peoples R China

2.Univ Hawaii Manoa, Dept Mol Biosci & Bioengn, Honolulu, HI 96822 USA

3.Salk Inst Biol Studies, La Jolla, CA 92037 USA

关键词： flavonoid; maize; biosynthesis; C-glycosylflavone; functional food

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

ISSN： 0021-8561

年卷期： 2018 年 66 卷 40 期

页码：

收录情况： SCI

摘要： Flavonoids are characteristic in maize and have diverse biological functions. C-Glycosylflavones are neuroprotective against beta-amyloid-induced tau hyperphosphorylation and neurotoxicity in SH-SYSY cells, which is relevant to Alzheimer's disease prevention and treatment. The content of the flavonoids eriodictyol, luteolin, isoorientin, and maysin varied in pollens, silks, tassels, and seeds among five maize varieties. Eriodictyol content was high (51-322 ng/g dw) in pollens, while luteolin content was low (0.2-106 ng/g dw) in all four tissues. The isoorientin content was approximately 3- to 10-fold greater than eriodictyol in pollens and tassels, particularly in the hybrid M1 and sweet corn M5 varieties. Maysin content was high in most silks and tassels. The differential expression of five genes involved in the maysin biosynthesis correlated well with the profiles of the four flavonoids among tissues and varieties. The present study offers valuable data for maize breeding and the use of maize flavonoids as functional food components.

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