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Sunday, July 19, 2020 | History

2 edition of Response of a sedimentary microbial community to polycyclic aromatic hydrocarbon contamination found in the catalog.

Response of a sedimentary microbial community to polycyclic aromatic hydrocarbon contamination

Donald Eugene Langworthy

Response of a sedimentary microbial community to polycyclic aromatic hydrocarbon contamination

by Donald Eugene Langworthy

  • 271 Want to read
  • 27 Currently reading

Published .
Written in English

    Subjects:
  • Microbial ecology,
  • Hydrocarbons -- Environmental aspects,
  • Polycyclic compounds -- Environmental aspects,
  • Microbial contamination

  • Edition Notes

    Statementby Donald Eugene Langworthy II
    The Physical Object
    Paginationviii, 146 leaves :
    Number of Pages146
    ID Numbers
    Open LibraryOL15299667M

    Many polycyclic aromatic hydrocarbons (PAHs) and their epoxides are highly toxic, mutagenic, or carcinogenic to microorganisms and higher organisms, including humans (Moubasher et al. ). Generally, car oil consists of 90 % petroleum fractions and 10 % of other additives, i.e., antioxidants and detergents (Ramadass et al. ); however, a. Remediation of soils containing high concentrations of polycyclic aromatic hydrocarbons (PAHs) seldom results in complete removal of contaminants, but residual toxicity often is reduced.

    Fate of polycyclic aromatic hydrocarbons from the North Pacific to the Arctic: Field measurements and fugacity model simulation. Chemosphere , , DOI: /phere H. Rodger Harvey, Karen A. Taylor. Alkane and polycyclic aromatic hydrocarbons in sediments and benthic invertebrates of the northern Chukchi Sea. The distribution of polycyclic aromatic hydrocarbons (PAHs) has been investigated in superficial sediments and mussels (Mytilus galloprovincialis) of the western Mediterranean sea (French Riviera, Corsica, Sardinia).The analyses were performed by gas chromatography coupled to .

    Shifts in microbial community structure during in situ surfactant-enhanced bioremediation of polycyclic aromatic hydrocarbon-contaminated soil. Environmental Science and Pollution Research , 23 (14), DOI: /s Jialin Li, Shaoying Lin, Song Qin.   Perylene, a 5-ring polycyclic aromatic hydrocarbon is common in estuarine sediments and its toxicity in the benthic and planktonic compartments is not yet clarified. The objectives of this work were: (1) to follow the toxicity of high concentrations of perylene ( mg l−1) on benthic bacteria and macrofauna (amphipod Corophium multisetosum); (2) to determine the effects of a low load of.


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Response of a sedimentary microbial community to polycyclic aromatic hydrocarbon contamination by Donald Eugene Langworthy Download PDF EPUB FB2

The phenotypic and genotypic adaptation of a freshwater sedimentary microbial community to elevated (22 to μg g [dry weight] of sediment −1) levels of polycyclic aromatic hydrocarbons (PAHs) was determined by using an integrated biomolecular l to the approach was the use of phospholipid fatty acid (PLFA) profiles to characterize the microbial community structure and Cited by: The phenotypic and genotypic adaptation of a freshwater sedimentary microbial community to elevated (22 to microgram [dry weight] of sediment-1) levels of polycyclic aromatic hydrocarbons.

The phenotypic and genotypic adaptation of a freshwater sedimentary microbial community to elevated (22 to m g g [dry weight] of sediment 2 1) levels of polycyclic aromatic hydrocarbons (PAHs) was determined by using an integrated biomolecular approach.

Central to the approach was the use of phospholipid fatty acidCited by: Lipid Analysis of the Response of a Microbial Community to Polycyclic Aromatic Hydrocarbons EPA Grant Number: U Title: Lipid Analysis of the Response of a Microbial Community to Polycyclic Aromatic Hydrocarbons Investigators: Langworthy, Donald E.

Institution: Miami University - Oxford EPA Project Officer: Lee, Sonja Project Period: January 1, through January 1, MICROBIAL ECOLOGY Microb Ecol () DOI: /s. Springer-Verlag New York Inc. Lipid Analysis of the Response of a Sedimentary Microbial Community to Polycyclic Aromatic Hydrocarbons D.E.

Langworthy,l* R.D. Stapleton,2 t G.S. Sayler,2 R.H. Findlay' 1 Department of Microbiology, Miami University, Oxford, OH. Polycyclic aromatic hydrocarbons (PAH) are widespread environmental contaminants that can, under proper conditions, be degraded by microorganisms. The responses of a riverine sedimentary microbial community to PAH contamination were examined using an integrated biochemical assay that yielded data on PAH concentration, total microbial biomass, and microbial community structure and were.

Gas chromatograph mass spectrometer (GC- MS) analysis revealed a total soil petroleum hydrocarbon (TPH) and polycyclic aromatic hydrocarbon (PAHs) content of 30, mg kg-1 mg kg The phenotypic and genotypic adaptation of a freshwater sedimentary microbial community to elevated (22 to μg g [dry weight] of sediment−1) levels of polycyclic aromatic hydrocarbons (PAHs) was determined by using an integrated biomolecular approach.

Central to the approach was the use of phospholipid fatty acid (PLFA) profiles to characterize the microbial community structure and. A polycyclic aromatic hydrocarbon (PAH) is a hydrocarbon—a chemical compound containing only carbon and hydrogen—whose molecule has of multiple aromatic simplest such chemicals are naphthalene, having two aromatic rings, and the three-ring compounds anthracene and terms polyaromatic hydrocarbon or polynuclear aromatic hydrocarbon are also.

Moreover, the increase in oil degraders was concomitant with an increased expression of polycyclic aromatic hydrocarbons, n-alkane and toluene degradation genes as assessed by metatranscriptomics (Lamendella et al., ). Although these findings provided important insights into the effects of oil on benthic microbial community composition, the.

Polycyclic aromatic hydrocarbons (PAHs) are a class of fused-ring aromatic compounds that are ubiquitous environmental pollutants ().Microorganisms play an important role in the degradation of PAHs in terrestrial and aquatic ecosystems, and microbial degradation is the main process in natural decontamination.

The polycyclic aromatic hydrocarbon degradation potential of Gulf of Mexico native coastal microbial communities after the Deepwater Horizon oil spill Front. Microbiol., 5. Total microbial biomass and microbial community structure were responding to environmental determinants, sediment grain size, depth of sediment, and pollution due to petroleum hydrocarbons.

The marker fatty acids of microeukaryotes and prokaryotes - aerobic, anaerobic, and sulfate-reducing bacteria -were detected in sediments of the areas studied.

Sawulski P, Clipson N, Doyle E () Effects of polycyclic aromatic hydrocarbons on microbial community structure and PAH ring hydroxylating dioxygenase gene abundance in soil. Biodegrad – CrossRef Google Scholar. Hydrocarbon biodegradation and soil microbial community response to repeated oil exposure D.G.

Malcolm, J.M. Lopez-Real, A.J. BeckBiodegradation of polycyclic aromatic hydrocarbons (PAHs) by native microflora P. Doumenq, J.C. BertrandAssessment of the effects of hydrocarbon contamination on the sedimentary bacterial communities and.

1. Introduction. Numerous studies have demonstrated the importance of microorganisms for the remediation of marine sediments contaminated with petroleum hydrocarbons (Madsen,White et al., ).Bioremediation depends on numerous physico-chemical factors, the availability of nutrients and the nature and activity of sedimentary microorganisms (Santas and Santas,Maki.

Microbial community analysis of soils contaminated with lead, chromium and petroleum hydrocarbons. Microb. Ecol. 51 – /s ; Kanaly R. A., Harayama S. Biodegradation of high-molecular-weight polycyclic aromatic hydrocarbons by bacteria.

Sediment contaminated with polycyclic aromatic hydrocarbons (PAHs) is widely distributed in aquatic ecosystems. The microbial community structure of riverbank PAH-contaminated sediments was investigated using phospholipid-derived fatty acid (PLFA) analysis.

Surface and subsurface riverbank sediment was collected from a highly contaminated site and from an. The results of this study indicate that freshwater, sedimentary anaerobic microbial communities respond to a range of environmental parameters, many of which influence subsurface river sediments.

Numerous studies have documented the influence of legacy pollutants, such as polycyclic aromatic hydrocarbons (PAHs) and metals, on diversity and abundance of microbiota in sediment (Faris et al.,Sun et al., a, Sun et al., b, Xie et al.,Xie et al., ).

Decline in microbial diversity and activity attributed to. 1. Introduction. Polycyclic aromatic hydrocarbons (PAHs) are typical persistent organic pollutants that have attracted scientific and regulatory interests due to their toxic, carcinogenic, and mutagenic properties (Sverdrup et al.,Qiao et al.,Zhang and Tao, ).They mainly originate from anthropogenic activities such as incomplete combustion of fossil fuels, biomass burning.Hydrocarbons Polycyclic Hydrocarbons, Aromatic Receptors, Aryl Hydrocarbon Hydrocarbons, Aromatic Polycyclic Compounds Tetrachlorodibenzodioxin Methane Hydrocarbons, Halogenated Aryl Hydrocarbon Receptor Nuclear Translocator Hydrocarbons, Chlorinated Cytochrome P CYP1A1 Petroleum Plant Oils Gas, Natural Fossil Fuels Gasoline.Over the past 30 years, research on the microbial degradation of polycyclic aromatic hydrocarbons (PAHs) has resulted in the isolation of numerous genera of bacteria, fungi and algae capable of.