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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
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| one publication added to basket [296027] |
Enrichment of a microbial community performing anaerobic oxidation of methane in a continuous high-pressure bioreactor
Zhang, Y.; Maignien, L.; Zhao, X.; Wang, F.; Boon, N. (2011). Enrichment of a microbial community performing anaerobic oxidation of methane in a continuous high-pressure bioreactor. BMC Microbiol. 11: 137. https://dx.doi.org/10.1186/1471-2180-11-137
In: BMC Microbiology. BioMed Central: London. ISSN 1471-2180; e-ISSN 1471-2180, meer
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| Auteurs | | Top |
- Zhang, Y., meer
- Maignien, L., meer
- Zhao, X.
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| Abstract |
Background: Anaerobic oxidation of methane coupled to sulphate reduction (SR-AOM) prevents more than 90% of the oceanic methane emission to the atmosphere. In a previous study, we demonstrated that the high methane pressure (1, 4.5, and 8 MPa) stimulated in vitro SR-AOM activity. However, the information on the effect of high-pressure on the microbial community structure and architecture was still lacking. Results: In this study we analysed the long-term enrichment (286 days) of this microbial community, which was mediating SR-AOM in a continuous high-pressure bioreactor. 99.7% of the total biovolume represented cells in the form of small aggregates (diameter less then 15 mu m). An increase of the total biovolume was observed (2.5 times). After 286 days, the ANME-2 (anaerobic methanotrophic archaea subgroup 2) and SRB (sulphate reducing bacteria) increased with a factor 12.5 and 8.4, respectively. Conclusion: This paper reports a net biomass growth of communities involved in SR-AOM, incubated at high-pressure. |
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