How relevant are flavonoids as antioxidants in plants?

被引：493

作者：

Hernandez, Iker ^{[1
,2
]}

Alegre, Leonor ^{[3
]}

Van Breusegem, Frank ^{[1
,2
]}

Munne-Bosch, Sergi ^{[3
]}

机构：

[1] Univ Ghent, Dept Plant Syst Biol, Flanders Inst Biotechnol VIB, B-9052 Ghent, Belgium

[2] Univ Ghent, Dept Plant Biotechnol & Genet, B-9052 Ghent, Belgium

[3] Univ Barcelona, Dept Biol Vegetal, Fac Biol, E-08028 Barcelona, Spain

来源：

TRENDS IN PLANT SCIENCE | 2009年 / 14卷 / 03期

关键词：

HYDROGEN-PEROXIDE; PHENOXYL RADICALS; ASCORBIC-ACID; DNA DAMAGE; CHLOROPLASTS; ANTHOCYANINS; ARABIDOPSIS; METABOLISM; LEAVES; OXYGEN;

D O I：

10.1016/j.tplants.2008.12.003

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Flavonoids are a large family of plant secondary metabolites, principally recognized for their health-promoting properties in human diets. Most flavonoids outperform well-known antioxidants, such as ascorbate (vitamin Q and alpha-tocopherol (vitamin E), in in vitro antioxidant assays because of their strong capacity to donate electrons or hydrogen atoms. However, experimental evidence for an antioxidant function in plants is limited to a few individual flavonoids under very specific experimental and developmental conditions. As we discuss here, although flavonoids have been demonstrated to accumulate with oxidative stress during abiotic and biotic environmental assaults, a convincing spatio-temporal correlation with the flavonoid oxidation products is not yet available. Thereby, the widely accepted antioxidant function of flavonoids in plants is still a matter of debate.

引用

页码：125 / 132

页数：8

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