%0 Journal Article
%T The impact of long-term hydrocarbon exposure on the structure, activity, and biogeochemical functioning of microbial mats
%+ Institut méditerranéen d'océanologie (MIO)
%A Aube, Johanne
%A Senin, Pavel
%A Pringault, Olivier
%A BONIN, Patricia
%A Deflandre, Bruno
%A Bouchez, Olivier
%A Bru, Noelle
%A Biritxinaga-etchart, Edurne
%A Klopp, Christophe
%A Guyoneaud, Remy
%A Goni-urriza, Marisol
%< avec comité de lecture
%Z MIO:16-107
%@ 0025-326X
%J Marine Pollution Bulletin
%I Elsevier
%V 111
%N 1-2
%P 115-125
%8 2016-10-15
%D 2016
%R 10.1016/j.marpolbul.2016.07.023
%K Biogeochemical functioning
%K Diversity
%K Hydrocarbonoclastic bacteria
%K Microbial mats
%Z Environmental Sciences/Biodiversity and EcologyJournal articles
%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
%G English
%L hal-01439616
%U https://hal.archives-ouvertes.fr/hal-01439616
%~ CNRS
%~ UNIV-TLN
%~ SDE
%~ OSU-INSTITUT-PYTHEAS
%~ UNIV-AMU
%~ GIP-BE
%~ MIO
%~ TEST-AMU
%~ IPREM
%~ UNIV-PAU
%~ IPREM-CME