Bacterial community dynamics during bioremediation of phenanthrene- and fluoranthene-amended soil

Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental contaminants that enter the environment via incomplete combustion of fossil fuels and accidental leakage of petroleum products, and as components of products such as creosote. Bacterial community dynamics were examined in soils ame...

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Bibliographic Details
Published in:	International biodeterioration & biodegradation Vol. 63; no. 1; pp. 52 - 56
Main Authors:	Muckian, Lorraine M., Grant, Russell J., Clipson, Nicholas J.W., Doyle, Evelyn M.
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 2009
Subjects:	Aeration Bacterial community structure Fertiliser Polycyclic aromatic hydrocarbon (PAH) Terminal restriction fragment length polymorphism (TRFLP) Aeration Terminal restriction fragment length polymorphism (TRFLP) Polycyclic aromatic hydrocarbon (PAH) Bacterial community structure Fertiliser
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Summary:	Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental contaminants that enter the environment via incomplete combustion of fossil fuels and accidental leakage of petroleum products, and as components of products such as creosote. Bacterial community dynamics were examined in soils amended with two PAHs, phenanthrene or fluoranthene, and treated with fertiliser or aerated to stimulate the indigenous microbial population. Profiles of the bacterial communities present under a range of experimental conditions were generated using terminal restriction fragment length polymorphism (TRFLP) and the results were interpreted using sophisticated multivariate statistical analysis. Results indicated a distinct separation between community compositions based on time in phenanthrene-contaminated soil and a similar but less significant effect observed in fluoranthene-contaminated soil. High concentrations of fluoranthene had a positive effect on the abundance of some of the most dominant ribotypes. Aeration provided the most rapid treatment and resulted in almost complete removal of phenanthrene after 28 days.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1
ISSN:	0964-8305 1879-0208
DOI:	10.1016/j.ibiod.2008.04.005