DOI: 10.1016/j.marpolbul.2017.06.076
Scopus记录号: 2-s2.0-85024095207
论文题名: Influence of polycyclic aromatic hydrocarbons on nitrate reduction capability in mangrove sediments
作者: Jiang S. ; Su Y. ; Lu H. ; Jia H. ; Liu J. ; Yan C.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 122, 期: 2018-01-02 起始页码: 366
结束页码: 375
语种: 英语
英文关键词: Denitrifiers
; Mangrove sediments
; Nitrate reduction
; Nitrate/nitrite reductase
; PAHs
; Rhizosphere
Scopus关键词: Aromatic compounds
; Aromatic hydrocarbons
; Denitrification
; Hydrocarbons
; Nitrates
; Sediments
; Soils
; Denitrifiers
; Mangrove sediments
; Nitrate reduction
; Polycyclic aromatic hydrocarbon (PAH)
; Reductase activity
; Reduction process
; Rhizosphere
; Treated sediments
; Polycyclic aromatic hydrocarbons
; nitrate
; nitrate reductase
; nitrite reductase
; nitrogen
; phenanthrene
; polycyclic aromatic hydrocarbon
; nitric acid derivative
; polycyclic aromatic hydrocarbon
; concentration (composition)
; denitrification
; marine sediment
; nitrate
; PAH
; phenanthrene
; sediment pollution
; Aegiceras corniculatum
; Article
; China
; concentration (parameters)
; controlled study
; denitrification
; drug effect
; enzyme activity
; gene
; mangrove
; microbial activity
; narG gene
; nirK gene
; nirS gene
; nonhuman
; reduction (chemistry)
; rhizosphere
; sediment
; turnover time
; waste component removal
; bioremediation
; chemistry
; sediment
; wetland
; Biodegradation, Environmental
; Geologic Sediments
; Nitrates
; Polycyclic Aromatic Hydrocarbons
; Rhizosphere
; Wetlands
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: In the present study, we investigated the influence of phenanthrene (PHE), a three-ring polycyclic aromatic hydrocarbon (PAH) compound, on nitrate (NO3 −) reduction processes in mangrove sediments using microcosms. After 10 days, nitrate/nitrite reductase activity and abundance of narG and nirS significantly decreased in the bulk sediment at both 10/50 mg PHE kg− 1 contamination groups. In the rhizosphere, abundance of narG, nirS and nirK markedly declined at PHE treated sediments, while the drop in reductase activity at 10 mg kg− 1 PHE treatment was insignificant. After 50 days, apart from 10 mg Phe kg− 1 treated bulk sediment, abundance of denitrifiers and reductase activity in all PHE spiked sediment samples significantly dropped. Therefore, the influence of PAHs on NO3 − reduction capability in mangrove sediments is dependent on spiked concentration, temporal scale of exposure and interaction with roots. Generally, PAHs play an inhibitor role, slowing NO3 − turnover rates, which warrant attention from coastal managers. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88198
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; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China
Recommended Citation:
Jiang S.,Su Y.,Lu H.,et al. Influence of polycyclic aromatic hydrocarbons on nitrate reduction capability in mangrove sediments[J]. Marine Pollution Bulletin,2017-01-01,122(2018-01-02)