The Influence of Different Growth Stages and Dosage of EDTA on Cd Uptake and Accumulation in Cd-Hyperaccumulator (Solanum Nigrum L.)

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	The Influence of Different Growth Stages and Dosage of EDTA on Cd Uptake and Accumulation in Cd-Hyperaccumulator (Solanum Nigrum L.)
	Sun, YB; Zhou, QX; Wang, L; Liu, WT; Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China
刊名	BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
	2009
卷号	82 期号:3 页码:348-353
关键词	Solanum Nigrum l Cd-hyperaccumulator Edta Phytoremediation
ISSN号	0007-4861
英文摘要	Application of synthetic chelates such as ethylene diamine tetraacetic acid (EDTA) has been proposed as an alternative technology for phytoextraction of contaminated soils. In a pot experiment, the effects of EDTA application at three growing stages on growth and Cd uptake and accumulation of Solanum nigrum L. were investigated. The results showed that the 0.1 g/kg EDTA treatment was the most effective treatment, in which the concentrations of Cd in stems and leaves increased significantly compared with the control (Cd only), and the accumulation of Cd in shoots increased by 51.6%, 61.1% and 35.9% at the seedling, flowering and mature stages, respectively. Moreover, at the flowering stage, the height, dry shoot biomass and Cd accumulation in the plants reached the maximum, which were 18.9 cm, 1.8 g/plant and 292.8 mu g/pot, respectively. However, higher rate of EDTA (0.5 g/kg) could reduce the plant biomass and the total amount of Cd removed. The results indicated that moderate rate of EDTA applied at the flowering stage would be important to enhance phytoremediation efficiency in practice.
学科主题	Environmental Sciences ; Toxicology
语种	英语
WOS记录号	WOS:000262503900018
资助机构	Ministry of Science and Technology, People's Republic of China [2006AA06Z386]
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54269]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Sun, YB,Zhou, QX,Wang, L,et al. The Influence of Different Growth Stages and Dosage of EDTA on Cd Uptake and Accumulation in Cd-Hyperaccumulator (Solanum Nigrum L.)[J]. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,2009,82(3):348-353.
APA	Sun, YB,Zhou, QX,Wang, L,Liu, WT,&Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China.(2009).The Influence of Different Growth Stages and Dosage of EDTA on Cd Uptake and Accumulation in Cd-Hyperaccumulator (Solanum Nigrum L.).BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,82(3),348-353.
MLA	Sun, YB,et al."The Influence of Different Growth Stages and Dosage of EDTA on Cd Uptake and Accumulation in Cd-Hyperaccumulator (Solanum Nigrum L.)".BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 82.3(2009):348-353.