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Flavonoids in major cereal grasses: distribution, functions, biosynthesis, and applications

文献类型： 外文期刊

作者： Lam, Lydia Pui Ying 1 ; Wang, Lanxiang 3 ; Lui, Andy C. W. 4 ; Liu, Hongjia 5 ; Umezawa, Toshiaki 2 ; Tobimatsu, Yuki 2 ; Lo, Clive 7 ;

作者机构： 1.Akita Univ, Ctr Crossover Educ, Grad Sch Engn Sci, Tegata Gakuen Machi 1-1, Akita, Akita 0108502, Japan

2.Kyoto Univ, Res Inst Sustainable Humanosphere, Uji, Kyoto 6110011, Japan

3.Chinese Acad Sci, Shenzhen Inst Synthet Biol, Shenzhen Inst Adv Technol, CAS Key Lab Quantitat Engn Biol, Shenzhen 518055, Peoples R China

4.Cornell Univ, Sch Integrat Plant Sci, Plant Breeding & Genet Sect, Ithaca, NY 14853 USA

5.Inst Virol & Biotechnol, Zhejiang Acad Agr Sci, Hangzhou 310021, Peoples R China

6.Kyoto Univ, Res Unit Realizat Sustainable Soc, Uji, Kyoto 6110011, Japan

7.Univ Hong Kong, Sch Biol Sci, Pokfulam, Hong Kong, Peoples R China

关键词： Cereals; 3-Deoxyanthocyanidins; Flavone C-glycosides; Flavonoids; Grasses (Poaceae); Phlobaphenes; Tricin-lignin

期刊名称：PHYTOCHEMISTRY REVIEWS （ 影响因子：7.7； 五年影响因子：7.7 ）

ISSN： 1568-7767

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Cereal food crops like maize (Zea mays), rice (Oryza sativa), sorghum (Sorghum bicolor) and wheat (Triticum aestivum) are members of the grass family (Poaceae). Together with bioenergy grasses, they play essential roles in agriculture and biorefinery, comprising an important component of bio-economy. Grasses accumulate a unique range of flavonoids (a class of plant-specific specialized metabolites) that contribute to defense responses, fertility, pigmentation and cell wall lignification. This review summarizes the distribution, functions, biosynthesis and regulation of flavonoids, including flavanones, tricin and flavone O-conjugates, flavone C-glycosides, 3-deoxyanthocyanidins, phlobaphenes, anthocyanins, proanthocyanidins (condensed tannins) and flavonols, in grasses focusing on model cereal grasses. In particular, the constitutive, predominant and widespread tricin-lignin, flavone O-conjugates and flavone C-glycosides as well as the inducible and/or lineage-specific sakuranetin (a flavanone), maysin (a flavone C-glycoside), 3-deoxyanthocyanidins and phlobaphenes, are highlighted. Finally, the impacts and importance of cereal grass flavonoids on scientific research, agricultural production, food and health, and biorefinery are discussed.

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