%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Aubé, J.
%A Senin, P.
%A Pringault, Olivier
%A Bonin, P.
%A Deflandre, B.
%A Bouchez, O.
%A Bru, N.
%A Biritxinaga-Etchart, E.
%A Klopp, C.
%A Guyoneaud, R.
%A Goni-Urriza, M.
%T The impact of long-term hydrocarbon exposure on the structure, activity, and biogeochemical functioning of microbial mats
%D 2016
%L fdi:010068229
%G ENG
%J Marine Pollution Bulletin
%@ 0025-326X
%K Biogeochemical functioning ; Diversity ; Hydrocarbonoclastic bacteria ; Microbial mats
%K FRANCE ; MEDITERRANNEE ; BERRE ETANG
%M ISI:000384854100023
%N 1-2
%P 115-125
%R 10.1016/j.marpolbul.2016.07.023
%U https://www.documentation.ird.fr/hor/fdi:010068229
%> https://www.documentation.ird.fr/intranet/publi/2016/11/010068229.pdf
%V 111
%W Horizon (IRD)
%X Photosynthetic microbial mats are metabolically structured systems driven by solar light. They are ubiquitous and can grow in hydrocarbon-polluted sites, Our aim is to determine the impact of chronic hydrocarbon contamination on the structure, activity, and functioning of a microbial mat. We compared it to an uncontaminated mat harboring similar geochemical characteristics. The mats were sampled in spring and fall for 2 years. Seasonal variations were observed for the reference mat: sulfur cycle-related bacteria dominated spring samples, while Cyanobacteria dominated in autumn. The contaminated mat showed minor seasonal variation; a progressive increase of Cyanobacteria was noticed, indicating a perturbation of the classical seasonal behavior. Hydrocarbon content was the main factor explaining the differences in the microbial community structure; however, hydrocarbonoclastic bacteria were among rare or transient Operational Taxonomic Units (OTUs) in the contaminated mat We suggest that in long-term contaminated systems, hydrocarbonoclastic bacteria cannot be considered a sentinel of contamination.
%$ 036 ; 084 ; 038