A newly-discovered Cd-hyperaccumulator Solanum nigrum L.

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	A newly-discovered Cd-hyperaccumulator Solanum nigrum L.
	Wei, SH; Zhou, QX; Wang, X; Zhang, KS; Guo, GL; Ma, QYL; Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China
刊名	CHINESE SCIENCE BULLETIN
	2005
卷号	50 期号:1 页码:33-38
关键词	Hyperaccumulator Cadmium SoL.num Nigrum L. Remediation Of Contaminated Soils
ISSN号	1001-6538
英文摘要	A systematic investigation was conducted to screen for cadmium-hyperaccumulator from 54 species in 20 weed families using outdoor pot-culture experiment and small-scale field experiment. The results from the outdoor pot-culture experiment showed that Cd concentrations in the stems and leaves of Solanum nigrum L. growing in a soil spiked with 25 mg/kg Cd were up to 103.8 and 124.6 mg/kg (DW), respectively, which was greater than 100 mg/kg, minimum Cd concentration for a Cd-hyperaccumulator. The Cd enrichment factor (EF, concentration ratio in plant to soil) in shoots was as high as 2.68. Moreover, Cd accumulation in shoots was greater than that in roots (TF, concentration ratio in shoots to roots) and the plant biomass growth was not inhibited at the Cd concentrations tested compared with the control. The results of the small-scale field experiment also showed that the characteristics of Cd accumulation in S. nigrum were all consistent with the characteristics of Cd-hyperaccumulators. Thus S. nigrum can be classified as a Cd-hyperaccumulator. This work is important for further research in the areas of hyperaccumulators screening, and plant-tolerance physiology and evolution. It provides a patentable new plant species for phytoremediation of Cd-contaminated soils.
学科主题	Multidisciplinary Sciences
语种	英语
WOS记录号	WOS:000227798200007
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55175]
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	Wei, SH,Zhou, QX,Wang, X,et al. A newly-discovered Cd-hyperaccumulator Solanum nigrum L.[J]. CHINESE SCIENCE BULLETIN,2005,50(1):33-38.
APA	Wei, SH.,Zhou, QX.,Wang, X.,Zhang, KS.,Guo, GL.,...&Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China.(2005).A newly-discovered Cd-hyperaccumulator Solanum nigrum L..CHINESE SCIENCE BULLETIN,50(1),33-38.
MLA	Wei, SH,et al."A newly-discovered Cd-hyperaccumulator Solanum nigrum L.".CHINESE SCIENCE BULLETIN 50.1(2005):33-38.