Age-related biochemical changes during storage of beech (Fagus sylvatica L.) seeds

被引：78

作者：

Pukacka, Stanislawa ^{[1
]}

Ratajczak, Ewelina ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Dendrol, Seed Biochem Lab, PL-62035 Kornik, Poland

来源：

SEED SCIENCE RESEARCH | 2007年 / 17卷 / 01期

关键词：

ascorbic acid; Fagus sylvatica; germination; glutathione; phenolics; reactive oxygen species; seed viability; alpha-tocopherol;

D O I：

10.1017/S0960258507629432

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Substances that could play a role in maintaining seed viability (phenolic compounds, alpha-tocopherol, sterols, ascorbic acid, glutathione and soluble proteins) were estimated in beech (Fagus sylvatica L.) seed lots that had been stored for 2, 5, 7 and 10 years at - 10 degrees C. Germination capacity was strongly and positively correlated with amounts of total phenolic compounds, ultraviolet (UV)-absorbing phenols and soluble proteins. Moderately strong relationships appeared between germination capacity and a-tocopherol and ascorbic acid contents. Total sterol and glutathione contents were not correlated with germination capacity. A strong, negative correlation was found between germination capacity and reactive oxygen species (ROS), such as superoxide radical (O-2(-)) and hydrogen peroxide (H2O2), as well as with lipid hydroxyperoxides (LHPOs). The putative role of these compounds in the maintenance of beech seed viability during long-term storage is discussed.

引用

页码：45 / 53

页数：9

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