Antioxidative response to cadmium in roots and leaves of tomato plants

被引：38

作者：

Ammar, W. B. ^{[1
]}

Nouairi, I. ^{[2
]}

Zarrouk, M. ^{[2
]}

Ghorbel, M. H. ^{[1
]}

Jemal, F. ^{[1
]}

机构：

[1] Fac Sci Tunis, Unite Rech Nutr & Metab Azotes & Prot Stress, Tunis El Manar 2092, Tunisia

[2] Ctr Biotechnol Borj Cedria B, Lab Caracterisat & Qualite Huile dOlive, Hammam Lif 2050, Tunisia

来源：

BIOLOGIA PLANTARUM | 2008年 / 52卷 / 04期

关键词：

lipid peroxidation; Lycopersicon esculentum; oxidative stress;

D O I：

10.1007/s10535-008-0140-2

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Treatment of tomato seedlings (Lycopersicon esculentum Mill. cv. 63/5 F1) with increasing CdCl2 concentrations in the culture medium resulted in Cd accumulation more important in roots than in leaves. Biomass production was severely inhibited, even at low Cd concentration. Cd reduced chlorophyll content in leaves and enhanced lipid peroxidation. An increase in antioxidative enzyme (superoxide dismutase, ascorbate peroxidase, guaiacol peroxidase, glutathione reductase) activities was more pronounced in leaves than in roots, while catalase activity increased only in roots. In addition, changes in isoenzyme composition were observed using the non-denaturing polyacrylamid gel electrophoresis.

引用

页码：727 / 731

页数：5

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