Foliar application of iron impacts flavonoid glycosylation and promotes flavonoid metabolism in coloured rice

文献类型： 外文期刊

第一作者： Zhao, Xia

作者： Zhao, Xia;Wang, Linghui;Huang, Qiulan;Dai, Haifang;Liu, Ling;Zhu, Yumin;El-Sappah, Ahmed H.;Wu, Hui;Zhang, Xianwei;El-Sappah, Ahmed H.;Zhao, Xia

作者机构：

关键词： Flavonoid; Coloured rice; Foliar application of iron; Glycosylation

期刊名称：FOOD CHEMISTRY （ 影响因子：8.5； 五年影响因子：8.2 ）

ISSN： 0308-8146

年卷期： 2024 年 444 卷

页码：

收录情况： SCI

摘要： Coloured rice is known as a healthcare food owing its rich flavonoid content. To better understand the effects of iron on the flavonoid metabolism of coloured rice grains, different concentrations of FeSO4 were foliar sprayed on to red rice Yuhongdao 5815 (RR) and black rice Nanheinuo (BR). The results revealed the association of iron with the increased accumulation of anthocyanins in BR and proanthocyanins in RR along with enhancements in their antioxidant capacities and total flavonoid contents. Metabolomic analysis revealed that the differential metabolites between the iron treated coloured rice and the control primarily occurred because of the O-linked glycosylation of aglycones, which are involved in the flavonoid pathway. RR exhibited a significantly higher number of differential metabolites compared with BR. Thus, foliar FeSO4 application affects the O-linked glycosylation and positively regulates flavonoid metabolism.

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