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Biodegradation of hydrocarbons in bioturbated marine sediments

Cuny, Philippe and Cravo-Laureau, Cristiana and Grossi, Vincent and Gilbert, Franck and Militon, Cécile Biodegradation of hydrocarbons in bioturbated marine sediments. (2011) In: Microbial bioremediation of non-metals: current research. Caister Academic Press, 55-92. ISBN 9781904455837

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Abstract

Sediments can serve as sinks for hydrocarbon contaminants in marine ecosystems. Once settled, hydrocarbons fate will be dominated by several abiotic and biotic processes that will result in either their partial or total degradation or in a selective preservation when buried within the sediment. Biodegradation of hydrocarbons in marine sediments is mainly due to the existence of prokaryotes harbouring specific catabolic genes enabling the degradation of these compounds under oxic, suboxic and anoxic conditions. The interplay of the various factors that govern hydrocarbons biodegradation in marine sediments is highly complex as illustrated by bioturbation processes carried out by macrofaunal organisms. For instance, the redox oscillation regimes generated by macrofaunal organisms, and the efficiency of metabolic coupling between functional groups associated to these specific redox regimes, are probably determinant factors controlling the biodegradation rates of hydrocarbons in marine sediments. From the understanding of how these natural occurring factors may modulate the rates of hydrocarbons biodegradation, innovative bioremediation strategies may emerge.

Item Type:Book Section
Uncontrolled Keywords:
Institution:Other partners > Aix-Marseille Université - AMU (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Ecole Normale Supérieure de Lyon - ENS de Lyon (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Institut de Recherche pour le Développement - IRD (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Université Claude Bernard-Lyon I - UCBL (FRANCE)
Other partners > Université du Sud Toulon-Var - USTV (FRANCE)
Other partners > Université de Pau et des Pays de l'Adour - UPPA (FRANCE)
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Deposited By: Franck Gilbert
Deposited On:30 Sep 2013 08:30

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