Preservation of ancestral Cretaceous microflora recovered from a hypersaline oil reservoir
| Autor: | Isabel Neria, Jean Borgomano, Catherine Joulian, Didier Alazard, Bart P. Lomans, Bernard Ollivier, Grégoire Galès, Nicolas Tsesmetzis, Stéphanie Coulon, Dominique Morin |
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| Přispěvatelé: | Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Salinity Microorganism [SDE.MCG]Environmental Sciences/Global Changes 030106 microbiology Biology Article 03 medical and health sciences Paleontology RNA Ribosomal 16S Organic matter Africa Central Magnesium Oil and Gas Fields Phylogeny chemistry.chemical_classification Multidisciplinary [SDE.IE]Environmental Sciences/Environmental Engineering Sediment 15. Life on land Sedimentation biology.organism_classification Petroleum reservoir Archaea [SDE.ES]Environmental Sciences/Environmental and Society Cretaceous Sediment basin 030104 developmental biology chemistry [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
| Zdroj: | Scientific Reports Scientific Reports, 2016, 6, ⟨10.1038/srep22960⟩ Scientific Reports, Nature Publishing Group, 2016, 6, ⟨10.1038/srep22960⟩ |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/srep22960⟩ |
| Popis: | Microbiology of a hypersaline oil reservoir located in Central Africa was investigated with molecular and culture methods applied to preserved core samples. Here we show that the community structure was partially acquired during sedimentation, as many prokaryotic 16S rRNA gene sequences retrieved from the extracted DNA are phylogenetically related to actual Archaea inhabiting surface evaporitic environments, similar to the Cretaceous sediment paleoenvironment. Results are discussed in term of microorganisms and/or DNA preservation in such hypersaline and Mg-rich solutions. High salt concentrations together with anaerobic conditions could have preserved microbial/molecular diversity originating from the ancient sediment basin wherein organic matter was deposited. |
| Databáze: | OpenAIRE |
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