Influence of heavy metals on the accumulation of trimethylglycine, putrescine and spermine in food plants

被引：13

作者：

Bergmann, H ^{[1
]}

Machelett, B ^{[1
]}

Lippmann, B ^{[1
]}

Friedrich, Y ^{[1
]}

机构：

[1] Univ Jena, Inst Nutr Sci, D-07743 Jena, Germany

来源：

AMINO ACIDS | 2001年 / 20卷 / 03期

关键词：

amino acids; heavy metals; salinity; barley; trimethylglycine; putrescine; spermine;

D O I：

10.1007/s007260170048

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Increased contents of cadmium (Cd), lead (Pb), zinc (Zn) and other heavy metals in barley plants enhanced the accumulation of trimethylglycine (betaine), putrescine and spermine. Higher contents of heavy metals in barley were caused by soil enrichment with heavy metals and by soil salinity. The highest accumulation of spermine and betaine (increase 3-fold or 5-fold in comparison to untreated soil substrates) was obtained at the highest concentration of heavy metals in plants. Consequently the betaine-N / protein-N-ratio and the spermine-N / protein-N-quotient increased 3-fold in plants with high heavy metal contents. The biomass formation was not changed significantly by the different experimental treatments.

引用

页码：325 / 329

页数：5

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