DOI: 10.1016/j.marpolbul.2015.12.027
Scopus记录号: 2-s2.0-84959463590
论文题名: Effect of enhanced reactive nitrogen availability on plant-sediment mediated degradation of polycyclic aromatic hydrocarbons in contaminated mangrove sediment
作者: Jiang S. ; Lu H. ; Zhang Q. ; Liu J. ; Yan C.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 103, 期: 2018-01-02 起始页码: 151
结束页码: 158
语种: 英语
英文关键词: Degradation
; DIN
; Enhancement
; Mangrove wetland
; PAHs
Scopus关键词: Anthracene
; Aromatic compounds
; Aromatic hydrocarbons
; Degradation
; Hydrocarbons
; Image enhancement
; Nitrogen
; Plants (botany)
; Population statistics
; Sediments
; Sewage
; Soils
; Transportation
; DIN
; Dissipation rates
; Dissolved inorganic nitrogens
; Mangrove sediments
; Microbial activities
; Microbial biomass
; Polycyclic aromatic hydrocarbons (PAHS)
; Reactive nitrogen
; Polycyclic aromatic hydrocarbons
; ammonia
; dissolved inorganic nitrogen
; nitrate
; nitrogen
; phenanthrene
; unclassified drug
; nitrogen
; phenanthrene
; phenanthrene derivative
; water pollutant
; degradation
; dissolved inorganic nitrogen
; mangrove
; PAH
; phenanthrene
; wetland
; Article
; Avicennia marina
; bacterium
; biodegradation
; chemical phenomena
; concentration (parameters)
; controlled study
; dissipation
; mangrove
; microbial activity
; microbial biomass
; nitrogen availability
; nonhuman
; phenanthrene degradation bacteria
; plant root
; plant tissue
; population size
; rhizosphere
; sediment
; waste component removal
; analysis
; Avicennia
; biomass
; bioremediation
; chemistry
; metabolism
; microbiology
; sediment
; water pollutant
; wetland
; Avicennia marina
; Avicennia
; Bacteria
; Biodegradation, Environmental
; Biomass
; Geologic Sediments
; Nitrogen
; Phenanthrenes
; Plant Roots
; Rhizosphere
; Water Pollutants, Chemical
; Wetlands
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: As land-ocean interaction zones, mangrove systems receive substantial polycyclic aromatic hydrocarbons (PAHs) from sewage and combustion of fossil fuel. In this study, we investigated the relationship between dissolved inorganic nitrogen (DIN) availability and degradation rate of phenanthrene, a typical PAH compound, in mangrove plant-sediment systems, using Avicennia marina as a model plant. After 50 day incubation, phenanthrene removal ratios in sediments ranged from 53.8% to 97.2%. In non-rhizosphere sediment, increasing DIN accessibility increased microbial biomass and total microbial activity, while enhancements in population size of phenanthrene degradation bacteria (PDB) and phenanthrene degradation rates were insignificant. In contrast, the presence of excessive DIN in rhizosphere sediment resulted in a significantly large number of PDB, leading to a rapid dissipation rate of phenanthrene. The differences in degradation rates and abundances of degrader in sediment may be explained by the enhanced root activity due to the elevation in DIN accessibility. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87253
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: Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, China; School of Biological Sciences and Biotechnology, Minnan Normal University, China; Geography Department, School of Natural Sciences, Trinity College, University of Dublin, Dublin 2, Museum Building, Dublin, Ireland
Recommended Citation:
Jiang S.,Lu H.,Zhang Q.,et al. Effect of enhanced reactive nitrogen availability on plant-sediment mediated degradation of polycyclic aromatic hydrocarbons in contaminated mangrove sediment[J]. Marine Pollution Bulletin,2016-01-01,103(2018-01-02)