Polychlorinated biphenyls in alfalfa: Accumulation, sorption and speciation in different plant parts

doi:10.1080/15226514.2017.1284749

	Polychlorinated biphenyls in alfalfa: Accumulation, sorption and speciation in different plant parts
	Teng, Ying 1; Sun, Xianghui 1; Zhu, Lingjia 1; Christie, Peter 1; Luo, Yongming1,2
发表期刊	INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
ISSN	1522-6514
	2017
卷号	19 期号:8 页码:732-738
关键词	Polychlorinated Biphenyls Alfalfa Accumulation Speciation Sorption
研究领域	Environmental Sciences
DOI	10.1080/15226514.2017.1284749
产权排序	[Teng, Ying; Sun, Xianghui; Zhu, Lingjia; Christie, Peter; Luo, Yongming] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China; [Luo, Yongming] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China
作者部门	海岸带环境过程实验室
英文摘要	The accumulation, chemical speciation and distribution of polychlorinated biphenyls (PCBs) were investigated in various parts of alfalfa. Moreover, the adsorption characteristics for PCB 28 by alfalfa and the influencing factors of the adsorption characteristics were studied. There were different degrees of PCB accumulation in alfalfa roots, root nodules and shoots. The decreasing order of the accumulation of PCBs in plant tissues was root nodules > roots > shoots, and the decreasing order of the total PCB contents was roots > shoots > root nodules, indicating that the roots were the main sink for PCB accumulation. There were three modes of PCB speciation in alfalfa roots and root nodules, comprising strong sorption (78%) and weak sorption (19%) on tissue surfaces and absorption within tissues (2%). The adsorption isotherms of PCB 28 indicate that the adsorption capacities of root nodules and shoots were both significantly higher than that of the roots. Both lipids and carbohydrates, and especially lipids, affected the PCB adsorption capacities of the tissues. These results may help in the elucidation of the mechanisms of sorption and accumulation of PCBs in the plants and their main influencing factors and thus contribute to the development of phytoremediation technologies for PCB-contaminated soils.
文章类型	Article
资助机构	National Natural Science Foundation of China(41371309 ; K.C. Wong Education Foundation of Hong Kong ; 41230858)
收录类别	SCI
语种	英语
关键词[WOS]	POLYCYCLIC AROMATIC-HYDROCARBONS ; CONTAMINATED SOIL ; ABSORPTION ; ADSORPTION ; ROOTS ; WATER ; PCBS ; PHYTOREMEDIATION ; TRANSLOCATION ; MODEL
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:000402041800006
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/22531
专题	中国科学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.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China
推荐引用方式 GB/T 7714	Teng, Ying,Sun, Xianghui,Zhu, Lingjia,et al. Polychlorinated biphenyls in alfalfa: Accumulation, sorption and speciation in different plant parts[J]. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION,2017,19(8):732-738.
APA	Teng, Ying,Sun, Xianghui,Zhu, Lingjia,Christie, Peter,&Luo, Yongming.(2017).Polychlorinated biphenyls in alfalfa: Accumulation, sorption and speciation in different plant parts.INTERNATIONAL JOURNAL OF PHYTOREMEDIATION,19(8),732-738.
MLA	Teng, Ying,et al."Polychlorinated biphenyls in alfalfa: Accumulation, sorption and speciation in different plant parts".INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 19.8(2017):732-738.