DOI: 10.1016/j.marpolbul.2016.08.021
Scopus记录号: 2-s2.0-84992596236
论文题名: First evidence on the occurrence and dynamics of Dehalococcoides mccartyi PCB-dechlorinase genes in marine sediment during Aroclor1254 reductive dechlorination
作者: Matturro B. ; Di Lenola M. ; Ubaldi C. ; Rossetti S.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 112, 期: 2018-01-02 起始页码: 189
结束页码: 194
语种: 英语
英文关键词: Aroclor1254
; Dehalococcoides mccartyi
; Marine sediment
; PCB-dechlorinase genes
; Polychlorinated biphenyls
; Reductive dechlorination
Scopus关键词: Genes
; Growth kinetics
; Marine pollution
; Organic pollutants
; Polychlorinated biphenyls
; Population statistics
; Sediments
; Submarine geology
; Anaerobic conditions
; Anaerobic incubation
; Aroclor1254
; Contaminated marine sediments
; Dehalococcoides
; Environmental sample
; Marine sediments
; Reductive dechlorination
; Dechlorination
; aroclor 1254
; polychlorinated biphenyl
; aroclor 1254
; bacterial protein
; polychlorinated biphenyl
; water pollutant
; bacterium
; bioremediation
; dechlorination
; enrichment
; growth response
; marine sediment
; PCB
; salinity
; sediment pollution
; species occurrence
; Article
; bacterial gene
; bacterium contamination
; bacterium culture
; biological monitoring
; chemical analysis
; concentration (parameters)
; controlled study
; dechlorination
; Dehalococcoides
; Dehalococcoides mccartyi
; gas chromatography
; incubation time
; microbial community
; microbial population dynamics
; nonhuman
; pcbA1 gene
; pcbA4 gene
; pcbA5 gene
; physical chemistry
; physical parameters
; polymerase chain reaction
; quantitative analysis
; sediment
; bioremediation
; chemistry
; Chloroflexi
; genetics
; halogenation
; metabolism
; microbial consortium
; microbiology
; sediment
; water pollutant
; Dehalococcoides
; Bacterial Proteins
; Biodegradation, Environmental
; Chlorodiphenyl (54% Chlorine)
; Chloroflexi
; Geologic Sediments
; Halogenation
; Microbial Consortia
; Polychlorinated Biphenyls
; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: The present study evaluates the PCB-dehalorespiring capabilities and dynamics of indigenous Dehalococcoides mccartyi population in a PCB contaminated marine sediment. Specialized PCB-dechlorinase genes pcbA1, pcbA4 and pcbA5 previously characterized in pure cultures of D. mccartyi, were here found for the first time in environmental samples. Reductive dechlorination was stimulated by spiking Aroclor1254 to the sediment and by imposing strictly anaerobic conditions both with and without bioaugmentation with a Dehalococcoides mccartyi enrichment culture. In line with the contaminant dechlorination kinetics, Dehalococcoides population increased during the entire incubation period showing growth yields of 4.94E + 07 Dehalococcoides per μmol Cl− 1 and 7.30E + 05 Dehalococcoides per μmol Cl− 1 in the marine sediment with and without bioaugmentation respectively. The pcbA4 and pcbA5 dechlorinase genes, and to a lesser extent pcbA1 gene, were enriched during the anaerobic incubation suggesting their role in Aroclor1254 dechlorination under salinity conditions. © 2016 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86676
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: Water Research Institute, IRSA-CNR, Via Salaria km 29,300, Monterotondo (RM), Italy; ENEA, Technical Unit for Environmental Characterization, Prevention and Remediation, UTPRA, C. R. Casaccia, Italy
Recommended Citation:
Matturro B.,Di Lenola M.,Ubaldi C.,et al. First evidence on the occurrence and dynamics of Dehalococcoides mccartyi PCB-dechlorinase genes in marine sediment during Aroclor1254 reductive dechlorination[J]. Marine Pollution Bulletin,2016-01-01,112(2018-01-02)