Copper changes the yield and cadmium/zinc accumulation and cellular distribution in the cadmium/zinc hyperaccumulator Sedum plumbizincicola

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Copper changes the yield and cadmium/zinc accumulation and cellular distribution in the cadmium/zinc hyperaccumulator Sedum plumbizincicola
	Li, Zhu 1,2; Wu, Longhua 1; Hu, Pengjie 1; Luo, Yongming1,3 ; Christie, Peter 4
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2013-10-15
卷号	261 页码:332-341
关键词	Metal toxicity Interactions Hyperaccumulation Translocation mu-SXRF
ISSN号	0304-3894
通讯作者	Wu, LH (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China. lhwu@issas.ac.cn
产权排序	[Li, Zhu; Wu, Longhua; Hu, Pengjie; Luo, Yongming] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China; [Li, Zhu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Luo, Yongming] Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Christie, Peter] Agri Food & Biosci Inst, Agri Environm Branch, Belfast BT9 5PX, Antrim, North Ireland
中文摘要	Non-accumulated metals in mixed metal contaminated soils may affect hyperaccumulator growth and metal accumulation and thus remediation efficiency. Two hydroponics experiments were conducted to investigate the effects of copper (Cu) on cadmium (Cd) and zinc (Zn) accumulation by the Cd/Zn hyperaccumulator Sedum plumbizincicola, Cu toxicity and plant detoxification using chemical sequential extraction of metals, sub-cellular separation, micro synchrotron radiation based X-ray fluorescence, and transmission electron microscopy. Compared with the control (0.31 mu M Cu), 5-50 mu M Cu had no significant effect on Cd/Zn accumulation, but Cu at 200 mu M induced root cell plasmolysis and disordered chloroplast structure. The plants held Cu in the roots and cell walls and complexed Cu in insoluble forms as their main detoxification mechanisms. Exposure to 200 mu M Cu for 4 days inhibited plant Cd uptake and translocation but did not affect Zn concentrations in roots and stems. Moreover, unloading of Cd and Zn from stem to leaf was restrained compared to control plants, perhaps due to Cu accumulation in leaf veins. Copper may thus interfere with root Cd uptake and restrain Cd/Zn unloading to the leaves. Further investigation of how Cu affects plant metal uptake may help elucidate the Cd/Zn hyper-accumulating mechanisms of S. plumbizincicola. (C) 2013 Elsevier BM. All rights reserved.
英文摘要	Non-accumulated metals in mixed metal contaminated soils may affect hyperaccumulator growth and metal accumulation and thus remediation efficiency. Two hydroponics experiments were conducted to investigate the effects of copper (Cu) on cadmium (Cd) and zinc (Zn) accumulation by the Cd/Zn hyperaccumulator Sedum plumbizincicola, Cu toxicity and plant detoxification using chemical sequential extraction of metals, sub-cellular separation, micro synchrotron radiation based X-ray fluorescence, and transmission electron microscopy. Compared with the control (0.31 mu M Cu), 5-50 mu M Cu had no significant effect on Cd/Zn accumulation, but Cu at 200 mu M induced root cell plasmolysis and disordered chloroplast structure. The plants held Cu in the roots and cell walls and complexed Cu in insoluble forms as their main detoxification mechanisms. Exposure to 200 mu M Cu for 4 days inhibited plant Cd uptake and translocation but did not affect Zn concentrations in roots and stems. Moreover, unloading of Cd and Zn from stem to leaf was restrained compared to control plants, perhaps due to Cu accumulation in leaf veins. Copper may thus interfere with root Cd uptake and restrain Cd/Zn unloading to the leaves. Further investigation of how Cu affects plant metal uptake may help elucidate the Cd/Zn hyper-accumulating mechanisms of S. plumbizincicola. (C) 2013 Elsevier BM. All rights reserved.
学科主题	Engineering, Environmental ; Engineering, Civil ; Environmental Sciences
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology
关键词[WOS]	THLASPI-CAERULESCENS ; SUBCELLULAR-DISTRIBUTION ; PHYTOLACCA-AMERICANA ; METAL ACCUMULATION ; CHEMICAL FORM ; PLANTS ; ZINC ; ROOT ; CD ; PHYTOREMEDIATION
收录类别	SCI
资助信息	National Natural Science Foundation of China [40930739, 41271326]; National High Technology Research and Development (863) Program of China [2012AA06A204]
原文出处	http://dx.doi.org/10.1016/j.jhazmat.2013.07.050
语种	英语
WOS记录号	WOS:000328177300039
公开日期	2014-07-08
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/6942]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 4.Agri Food & Biosci Inst, Agri Environm Branch, Belfast BT9 5PX, Antrim, North Ireland
推荐引用方式 GB/T 7714	Li, Zhu,Wu, Longhua,Hu, Pengjie,et al. Copper changes the yield and cadmium/zinc accumulation and cellular distribution in the cadmium/zinc hyperaccumulator Sedum plumbizincicola[J]. JOURNAL OF HAZARDOUS MATERIALS,2013,261:332-341.
APA	Li, Zhu,Wu, Longhua,Hu, Pengjie,Luo, Yongming,&Christie, Peter.(2013).Copper changes the yield and cadmium/zinc accumulation and cellular distribution in the cadmium/zinc hyperaccumulator Sedum plumbizincicola.JOURNAL OF HAZARDOUS MATERIALS,261,332-341.
MLA	Li, Zhu,et al."Copper changes the yield and cadmium/zinc accumulation and cellular distribution in the cadmium/zinc hyperaccumulator Sedum plumbizincicola".JOURNAL OF HAZARDOUS MATERIALS 261(2013):332-341.