title: Metatranscriptomes of oil-contaminated marine coastal sediment affected by oil addition and/or by the bioturbating activity of the marine polychaete Hediste diversicolor: Who are the microbial players?
abstract: In coastal marine sediment, oxygen fluctuations induced by bioturbating activities are widespread and exert a great influence, not only on the structure and diversity of the microbenthic communities, but also on their activities. Thus, the activity of benthic organisms can have a significant influence on the degradation of hydrocarbons (HC) and can favor the development of hydrocarbonoclastic microorganisms in contaminated marine sediments. Here, we have generated metatranscriptomic data from coastal marine sediments affected by oil addition and/or by the reworking activity of the marine polychaete Hediste diversicolor to gain insights into the active microbial groups involved in the response to oil addition under the oxygen-fluctuating conditions. The preliminary results suggest that the macrofauna promote the diversity of active aerobic hydrocarbonoclastic bacteria in marine sediments, even if its influence cannot be strongly observed at the microbial community expression profiles level.
authors.affiliation: Aix Marseille Université, CNRS, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288, Marseille, France. Electronic address: cecile.militon@univ-amu.fr.
authors.forename: Cécile
authors.initials: C
authors.lastname: Militon
authors.affiliation: Aix Marseille Université, CNRS, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288, Marseille, France.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Atkinson
authors.affiliation: Aix Marseille Université, CNRS, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288, Marseille, France.
authors.forename: Valérie
authors.initials: V
authors.lastname: Michotey
authors.affiliation: GeT-PlaGe, Genotoul, INRA Auzeville F31326, Castanet-Tolosan, France; INRA, UAR1209, INRA Auzeville F31326, Castanet-Tolosan, France.
authors.forename: Céline
authors.initials: C
authors.lastname: Jeziorski
authors.affiliation: Equipe Environnement et Microbiologie, MELODY group, Université de Pau et des Pays de l'Adour, IPREM UMR CNRS 5254, BP 1155, 64013 Pau Cedex, France.
authors.forename: Cristiana
authors.initials: C
authors.lastname: Cravo-Laureau
authors.affiliation: Equipe Environnement et Microbiologie, MELODY group, Université de Pau et des Pays de l'Adour, IPREM UMR CNRS 5254, BP 1155, 64013 Pau Cedex, France.
authors.forename: Robert
authors.initials: R
authors.lastname: Duran
authors.affiliation: Aix Marseille Université, CNRS, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288, Marseille, France.
authors.forename: Patricia
authors.initials: P
authors.lastname: Bonin
authors.affiliation: Aix Marseille Université, CNRS, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288, Marseille, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Cuny
mesh_terms: D000818:Animals; D001419:Bacteria / Q000145:classification* / Q000187:drug effects / Q000235:genetics*; D005602:France; D019015:Geologic Sediments / Q000382:microbiology*; D054892:Metagenome; D059392:Petroleum Pollution / Q000009:adverse effects; D011077:Polychaeta / Q000502:physiology; D059467:Transcriptome
keywords: Bioturbation; Hydrocarbon; Marine sediment; Metatranscriptomic; Microbial community; Oxygen regimes