IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Print this page

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://hdl.handle.net/10.1186/1471-2180-11-137
In: BMC Microbiology. BioMed Central: London. ISSN 1471-2180; e-ISSN 1471-2180, more
Peer reviewed article  

Available in  Authors 

Keyword
    Marine

Authors  Top 
  • Zhang, Y., more
  • Maignien, L., more
  • Zhao, X.
  • Wang, F.
  • Boon, N., more

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.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors