DOI: 10.1016/j.marpolbul.2017.03.052
Scopus记录号: 2-s2.0-85016757227
论文题名: Silver nanoparticles uptake by salt marsh plants – Implications for phytoremediation processes and effects in microbial community dynamics
作者: Fernandes J.P. ; Mucha A.P. ; Francisco T. ; Gomes C.R. ; Almeida C.M.R.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 119, 期: 1 起始页码: 176
结束页码: 183
语种: 英语
英文关键词: Bacterial community structure
; Phytoremediation
; Remediation of ecosystems
; Silver
; Silver nanoparticles
Scopus关键词: Bacteria
; Bioremediation
; Ecology
; Ecosystems
; Environmental management
; Histology
; Metal nanoparticles
; Microorganisms
; Multivariant analysis
; Nanoparticles
; Social sciences
; Tissue
; Wetlands
; Bacterial community structure
; Environmental management strategy
; Microbial community dynamics
; Microbial community structures
; Multi variate analysis
; Phytoremediation
; Silver nanoparticles
; Silver nanoparticles (AgNps)
; Silver
; silver nanoparticle
; metal nanoparticle
; nanoparticle
; silver
; bioaccumulation
; biological uptake
; community response
; environmental management
; grass
; microbial community
; nanoparticle
; phytoremediation
; rhizosphere
; saltmarsh
; sediment pollution
; silver
; Article
; bioaccumulation
; community dynamics
; community structure
; degradation
; environmental protection
; limit of quantitation
; metabolism
; microbial community
; microcosm
; nonhuman
; Phragmites australis
; phytoremediation
; rhizosphere
; salt marsh
; sediment
; soil quality
; species diversity
; species richness
; water quality
; bioremediation
; chemistry
; plant root
; Poaceae
; wetland
; Bacteria (microorganisms)
; Phragmites australis
; Biodegradation, Environmental
; Metal Nanoparticles
; Nanoparticles
; Plant Roots
; Poaceae
; Silver
; Wetlands
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: This study investigated the uptake of silver nanoparticles (AgNPs) by a salt marsh plant, Phragmites australis, as well as AgNPs effects on rhizospheric microbial community, evaluating the implications for phytoremediation processes. Experiments were carried out with elutriate solution doped with Ag, either in ionic form or in NP form. Metal uptake was evaluated in plant tissues, elutriate solutions and sediments (by AAS) and microbial community was characterized in terms of bacterial community structure (evaluated by ARISA). Results showed Ag accumulation but only in plant belowground tissues and only in the absence of rhizosediment, the presence of sediment reducing Ag availability. But in plant roots Ag accumulation was higher when Ag was in NP form. Multivariate analysis of ARISA profiles showed significant effect of the absence/presence of Ag either in ionic or NP form on microbial community structure, although without significant differences among bacterial richness and diversity. Overall, P. australis can be useful for phytoremediation of medium contaminated with Ag, including with AgNPs. However, the presence of Ag in either forms affected the microbial community structure, which may cause disturbances in ecosystems function and compromise phytoremediation processes. Such considerations need to be address regarding environmental management strategies applied to the very important estuarine areas. Capsule The form in which the metal was added affected metal uptake by Phragmites australis and rhizosediment microbial community structure, which can affect phytoremediation. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87593
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: CIMAR/CIIMAR – Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, Matosinhos, Portugal; Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, Porto, Portugal
Recommended Citation:
Fernandes J.P.,Mucha A.P.,Francisco T.,et al. Silver nanoparticles uptake by salt marsh plants – Implications for phytoremediation processes and effects in microbial community dynamics[J]. Marine Pollution Bulletin,2017-01-01,119(1)