Response of sulphate-reducing bacteria to an artificial oil-spill in a coastal marine sediment

Suárez-Suárez, A. and López-López, A. and Tovar-Sánchez, A. and Yarza, P. and Orfila, A. and Terrados, J. and Arnds, J. and Marqués, S. and Niemann, H. and Schmitt-Kopplin, P. and Amann, R. and Rosselló-Móra, R.. (2011) Response of sulphate-reducing bacteria to an artificial oil-spill in a coastal marine sediment. Environmental Microbiology, 13 (6). pp. 1488-1499.

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In situ mesocosm experiments using a calcareous sand flat from a coastal area of the island of Mallorca in the Mediterranean Sea were performed in order to study the response of sulfate-reducing bacteria (SRB) to controlled crude oil contamination, or heavy contamination with naphthalene. Changes in the microbial community caused by the contamination were monitored by a combination of comparative sequence analysis of 16S rRNA genes, fluorescence in situ hybridization, cultivation approaches and metabolic activity rates. Our results showed that crude oil and naphthalene negatively influenced the total microbial community as the natural increase in cell numbers due to the seasonal dynamics was attenuated. However, both contaminants enhanced the sulfate reduction rates, as well as the culturability of SRB. Our results suggested the presence of autochthonous deltaproteobacterial SRBs that were able to degrade crude oil or polycyclic aromatic hydrocarbons such as naphthalene in anaerobic sediment layers.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geowissenschaften > Aquatic and Isotope Biogeochemistry (Lehmann)
UniBasel Contributors:Niemann, Helge
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:04 Oct 2017 14:54
Deposited On:11 Oct 2012 15:14

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