DOI: 10.1016/j.marpolbul.2016.05.044
Scopus记录号: 2-s2.0-84969931999
论文题名: Copper and lead removal from aqueous solutions by bacterial consortia acting as biosorbents
作者: Waite C.C.D.C. ; da Silva G.O.A. ; Bitencourt J.A.P. ; Sabadini-Santos E. ; Crapez M.A.C.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 109, 期: 1 起始页码: 386
结束页码: 392
语种: 英语
英文关键词: Alcanivorax
; Dehydrogenases
; Esterases
; Sepetiba Bay
Scopus关键词: Bioassay
; Enzymes
; Esters
; Alcanivorax
; Bacterial consortium
; Dehydrogenase activity
; Dehydrogenases
; Enzymatic activities
; Esterase activities
; Esterases
; Sepetiba Bay
; Solutions
; biomaterial
; biosorbent
; esterase
; oxidoreductase
; unclassified drug
; copper
; lead
; adsorption
; aqueous solution
; bacterium
; biomarker
; copper
; enzyme activity
; lead
; Alcanivorax
; aqueous solution
; Article
; bacterium contamination
; bacterium culture
; bioassay
; Brazil
; cell count
; concentration (parameters)
; controlled study
; culture medium
; energy consumption
; environmental exposure
; environmental stress
; enzyme activity
; heavy metal removal
; life cycle stage
; limit of detection
; microbial consortium
; nonhuman
; sediment
; bacterium
; bioremediation
; Brazil
; Rio de Janeiro [Brazil]
; Sepetiba Bay
; Alcanivorax
; Bacteria (microorganisms)
; Bacteria
; Biodegradation, Environmental
; Brazil
; Copper
; Lead
; Microbial Consortia
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: A bacterial consortium was selected in the presence of Cu from sediment samples taken from Sepetiba Bay, Brazil, which is a site historically contaminated by metals. Bacteria were exposed to 0, 1, 6, 12.5, 25 and 50 μg·mL− 1 Cu, Pb and Cu + Pb for 11 days of bioassay. Results showed Alcanivorax dominance (81%) and cell counts of 108 cells·mL− 1. However, a reduction in dehydrogenase activity was observed from the fifth day of exposure for all Cu, Pb, and Cu + Pb concentrations tested. Esterase activity tended to increase, indicating higher energy demand to complete the bacterial lifecycle. Pb concentrations in the filtered culture medium (0.2 μm) were below the detection limit, indicating biosorption, whereas concentrations of Cu were close to the tested concentrations, indicative of efflux. Results suggest the need for biomarkers, such as esterase and dehydrogenase enzymatic activity, in the assessment of resistance and tolerance of communities previously exposed to stressors. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87268
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
There are no files associated with this item.
作者单位: Programa de Biologia Marinha e Ambientes Costeiros, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brazil; Programa Dinâmica dos Oceanos e da Terra, Instituto de Geociências, Universidade Federal Fluminense, Niterói, RJ, Brazil
Recommended Citation:
Waite C.C.D.C.,da Silva G.O.A.,Bitencourt J.A.P.,et al. Copper and lead removal from aqueous solutions by bacterial consortia acting as biosorbents[J]. Marine Pollution Bulletin,2016-01-01,109(1)