Deciphering biodegradable chelant-enhanced phytoremediation through microbes and nitrogen transformation in contaminated soils

doi:10.1007/s11356-017-9029-y

ISWC OpenIR > 水保所科研产出--SCI > 2017--SCI

	Deciphering biodegradable chelant-enhanced phytoremediation through microbes and nitrogen transformation in contaminated soils
	Fang, Linchuan 1; Wang, Mengke 2; Cai, Lin 3; Cang, Long 4; Cang, L (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China.
文章类型	Article
	2017
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
通讯作者邮箱	canglong2016@hotmail.com
卷号	24 期号:17 页码:14627-14636
摘要	Biodegradable chelant-enhanced phytoremediation offers an alternative treatment technique for metal contaminated soils, but most studies to date have addressed on phytoextraction efficiency rather than comprehensive understanding of the interactions among plant, soil microbes, and biodegradable chelants. In the present study, we investigated the impacts of biodegradable chelants, including nitrilotriacetate, S,S-ethylenediaminedisuccinic acid (EDDS), and citric acid on soil microbes, nitrogen transformation, and metal removal from contaminated soils. The EDDS addition to soil showed the strongest ability to promote the nitrogen cycling in soil, ryegrass tissue, and microbial metabolism in comparison with other chelants. Both bacterial community-level physiological profiles and soil mass specific heat rates demonstrated that soil microbial activity was inhibited after the EDDS application (between day 2 and 10), but this effect completely vanished on day 30, indicating the revitalization of microbial activity and community structure in the soil system. The results of quantitative real-time PCR revealed that the EDDS application stimulated denitrification in soil by increasing nitrite reductase genes, especially nirS. These new findings demonstrated that the nitrogen release capacity of biodegradable chelants plays an important role in accelerating nitrogen transformation, enhancing soil microbial structure and activity, and improving phytoextraction efficiency in contaminated soil.
关键词	Biodegradable Chelants Phytoremediation Interactions Nitrogen Microbes
学科领域	Environmental Sciences & Ecology
DOI	10.1007/s11356-017-9029-y
URL	查看原文
收录类别	SCI
出版地	HEIDELBERG
语种	英语
WOS记录号	WOS:000402997700008
出版者	SPRINGER HEIDELBERG
项目资助者	National Natural Science Foundation of China [41571314, 41201226] ; National Natural Science Foundation of China [41571314, 41201226]
引用统计
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/7984
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Cang, L (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China.
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China 2.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Peoples R China 3.Univ Hong Kong, Dept Civil Engn, Environm Biotechnol Lab, Hong Kong, Hong Kong, Peoples R China 4.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Fang, Linchuan,Wang, Mengke,Cai, Lin,et al. Deciphering biodegradable chelant-enhanced phytoremediation through microbes and nitrogen transformation in contaminated soils[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2017,24(17):14627-14636.
APA	Fang, Linchuan,Wang, Mengke,Cai, Lin,Cang, Long,&Cang, L .(2017).Deciphering biodegradable chelant-enhanced phytoremediation through microbes and nitrogen transformation in contaminated soils.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,24(17),14627-14636.
MLA	Fang, Linchuan,et al."Deciphering biodegradable chelant-enhanced phytoremediation through microbes and nitrogen transformation in contaminated soils".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 24.17(2017):14627-14636.