Effects of heavy metals on plants and resistance mechanisms
Cheng, SP
刊名environmental science and pollution research
2003
卷号10期号:4页码:256-264
关键词accumulation bioavailability cell division enzyme growth metallothionein phytochelator phytoremediation pollution structure
通讯作者cheng, sp, chinese acad sci, inst hydrobiol, state key lab freshwater ecol & biotechnol, wuhan 430072, peoples r china
中文摘要goal, scope and background. as one of the consequences of heavy metal pollution in soil, water and air, plants are contaminated by heavy metals in some parts of china. to understand the effects of heavy metals upon plants and the resistance mechanisms, would make it possible to use plants for cleaning and remediating heavy metal-polluted sites. methods. the research results on the effects of heavy metals on plants and resistant mechanisms are compiled from chinese publications from scientific journals and university journals, mostly published during the last decade. results and discussion. effects of heavy metals on plants result in growth inhibition, structure damage, a decline of physiological and biochemical activities as well as of the function of plants. the effects and bioavailability of heavy metals depend on many factors, such as environmental conditions, ph, species of element, organic substances of the media and fertilization, plant species. but, there are also studies on plant resistance mechanisms to protect plants against the toxic effects of heavy metals such as combining heavy metals by proteins and expressing of detoxifying enzyme and nucleic acid, these mechanisms are integrated to protect the plants against injury by heavy metals. conclusions. there are two aspects on the interaction of plants and heavy metals. on one hand, heavy metals show negative effects on plants. on the other hand, plants have their own resistance mechanisms against toxic effects and for detoxifying heavy metal pollution. recommendations and outlook. to study the effects of heavy metals on plants and mechanisms of resistance, one must select crop cultivars and/or plants for removing heavy metals from soil and water. more highly resistant plants can be selected especially for a remediation of the pollution site. the molecular mechanisms of resistance of plants to heavy metals should be studied further to develop the actual resistance of these plants to heavy metals. understanding the bioavailability of heavy metals is advantageous for plant cultivation and phytoremediation. decrease in the bioavailability to farmlands would reduce the accumulation of heavy metals in food. alternatively, one could increase the bioavailability of plants to extract more heavy metals.
英文摘要goal, scope and background. as one of the consequences of heavy metal pollution in soil, water and air, plants are contaminated by heavy metals in some parts of china. to understand the effects of heavy metals upon plants and the resistance mechanisms, would make it possible to use plants for cleaning and remediating heavy metal-polluted sites.
WOS标题词science & technology ; life sciences & biomedicine
类目[WOS]environmental sciences
研究领域[WOS]environmental sciences & ecology
收录类别sci
语种英语
WOS记录号wos:000184451700011
引用统计
内容类型期刊论文
源URL[http://ir.ihb.ac.cn/handle/152342/9680]  
专题水生生物研究所_中科院水生所知识产出(2009年前)_期刊论文
作者单位1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Univ Cologne, Inst Bot, D-50931 Cologne, Germany
推荐引用方式
GB/T 7714
Cheng, SP. Effects of heavy metals on plants and resistance mechanisms[J]. environmental science and pollution research,2003,10(4):256-264.
APA Cheng, SP.(2003).Effects of heavy metals on plants and resistance mechanisms.environmental science and pollution research,10(4),256-264.
MLA Cheng, SP."Effects of heavy metals on plants and resistance mechanisms".environmental science and pollution research 10.4(2003):256-264.
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。

 

©版权所有 ©2017 CSpace - Powered by CSpace