Too much is bad-an appraisal of phytotoxicity of elevated plant-beneficial heavy metal ions

被引：105

作者：

Anjum, Naser A. ^{[1
,2
]}

Singh, Harminder P. ^{[3
]}

Khan, M. Iqbal R. ^{[4
]}

Masood, Asim ^{[4
]}

Per, Tasir S. ^{[4
]}

Negi, Asha ^{[3
]}

Batish, Daizy R. ^{[5
]}

Khan, Nafees A. ^{[4
]}

Duarte, Armando C. ^{[1
,2
]}

Pereira, Eduarda ^{[1
,2
]}

Ahmad, Iqbal ^{[1
,2
,6
]}

机构：

[1] Univ Aveiro, Ctr Environm & Marine Studies CESAM, P-3810193 Aveiro, Portugal

[2] Univ Aveiro, Dept Chem, P-3810193 Aveiro, Portugal

[3] Panjab Univ, Dept Environm Studies, Chandigarh 160014, India

[4] Aligarh Muslim Univ, Dept Bot, Aligarh 202002, Uttar Pradesh, India

[5] Punjab Univ, Dept Bot, Chandigarh 160014, India

[6] Univ Aveiro, Dept Biol, P-3810193 Aveiro, Portugal

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2015年 / 22卷 / 05期

关键词：

Essential heavy metal ions; Plant growth and metabolism; Phytotoxicity; Cyto/genotoxicity; INDUCED OXIDATIVE STRESS; ANTIOXIDANT ENZYME-ACTIVITIES; PHOTOSYNTHETIC ELECTRON-TRANSPORT; ORYZA-SATIVA L; ARABIDOPSIS-THALIANA; MANGANESE TOXICITY; LIPID-PEROXIDATION; IN-VITRO; SUPEROXIDE-DISMUTASE; COPPER UPTAKE;

D O I：

10.1007/s11356-014-3849-9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Heavy metal ions such as cobalt (Co), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), nickel (Ni), and zinc (Zn) are considered essential/beneficial for optimal plant growth, development, and productivity. However, these ions readily impact functions of many enzymes and proteins, halt metabolism, and exhibit phytotoxicity at supra-optimum supply. Nevertheless, the concentrations of these heavy metal ions are increasing in agricultural soils worldwide via both natural and anthropogenic sources that need immediate attention. Considering recent breakthroughs on Co, Cu, Fe, Mn, Mo, Ni, and Zn in soil-plant system, the present paper: (a) overviews the status in soils and their uptake, transport, and significance in plants; (b) critically discusses their elevated level-mediated toxicity to both plant growth/development and cell/genome; (c) briefly cross talks on the significance of potential interactions between previous plant-beneficial heavy metal ions in plants; and (d) highlights so far unexplored aspects in the current context.

引用

页码：3361 / 3382

页数：22

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