| Autor: |
Rainer U, Meckenstock, Frederick, von Netzer, Christine, Stumpp, Tillmann, Lueders, Anne M, Himmelberg, Norbert, Hertkorn, Philipp, Schmitt-Kopplin, Mourad, Harir, Riad, Hosein, Shirin, Haque, Dirk, Schulze-Makuch |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Science (New York, N.Y.). 345(6197) |
| ISSN: |
1095-9203 |
| Popis: |
Anaerobic microbial degradation of hydrocarbons, typically occurring at the oil-water transition zone, influences the quality of oil reservoirs. In Pitch Lake, Trinidad and Tobago--the world's largest asphalt lake--we found that microorganisms are metabolically active in minuscule water droplets (1 to 3 microliters) entrapped in oil. Pyrotag sequencing of individual droplet microbiomes revealed complex methanogenic microbial communities actively degrading the oil into a diverse range of metabolites, as shown by nuclear magnetic resonance and Fourier transform ion cyclotron resonance mass spectrometry. High salinity and water-stable isotopes of the droplets indicate a deep subsurface origin. The 13.5% water content and the large surface area of the droplets represent an underestimated potential for biodegradation of oil away from the oil-water transition zone. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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