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Epsilonproteobacteria dominate bacterial diversity at a natural tar seep
- Source :
- Comptes Rendus Biologies, Comptes Rendus Biologies, Elsevier, 2017, 340 (4), pp.238-243. ⟨10.1016/j.crvi.2016.10.001⟩, Comptes Rendus Biologies, 2017, 340 (4), pp.238-243. ⟨10.1016/j.crvi.2016.10.001⟩
- Publication Year :
- 2017
- Publisher :
- HAL CCSD, 2017.
-
Abstract
- International audience; The bacterial diversity of a naturally seeping bitumen source was investigated by 16S rRNA gene cloning and sequencing. Epsilonproteobacteria were shown to dominate the bacterial diversity in the underground water and within the bitumen, representing ca. 75% of the total bacterial diversity. These Epsilonproteobacteria were dominated by Sulfurimonas OTUs, while Sulfurovum and Arcobacter OTUs completed the remaining diversity. Epsilonproteobacteria are sulfur-oxidizer, nitrate-reducing chemo-lithoautotrophic bacteria, unable to use most organics for growth but capable of CO2 fixation. Thus, reduced sulfur species, but not the complex organic matter of the tar, are utilized for growth by bacterial communities at the Puy-de-la-Poix. The large prevalence of populations of Epsilonproteobacteria is a clear indication that crude oil offers a competitive ecological niche for these organisms.
- Subjects :
- 0301 basic medicine
[SDV]Life Sciences [q-bio]
030106 microbiology
General Biochemistry, Genetics and Molecular Biology
03 medical and health sciences
Sulfurimonas
Immunology and Microbiology(all)
Water Pollutants
Organic matter
Medicine(all)
chemistry.chemical_classification
Ecological niche
Epsilonproteobacteria
Agricultural and Biological Sciences(all)
General Immunology and Microbiology
biology
Biochemistry, Genetics and Molecular Biology(all)
Ecology
General Medicine
biology.organism_classification
16S ribosomal RNA
Tars
6. Clean water
Petroleum seep
030104 developmental biology
[SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology
chemistry
13. Climate action
Arcobacter
Water Microbiology
General Agricultural and Biological Sciences
human activities
Bacteria
[SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Comptes Rendus Biologies, Comptes Rendus Biologies, Elsevier, 2017, 340 (4), pp.238-243. ⟨10.1016/j.crvi.2016.10.001⟩, Comptes Rendus Biologies, 2017, 340 (4), pp.238-243. ⟨10.1016/j.crvi.2016.10.001⟩
- Accession number :
- edsair.doi.dedup.....01c8b5413518b3f49c16f5d2fdb4244a