A Depth Resolved Insight into Benzoyl CoA Reductase and Benzoate Dioxygenase Gene Copy Numbers within a Marine Sediment Associated with Methane Seepage


A marine sediment core obtained from a methane seepage site off the northern coast of Irelandwas analysed, at 3 depths, for catabolic genes associated with the aerobic and anaerobic degradation of aromatic compounds. Catabolic gene copy numbers varied through the core peaking at 2.1 meters below sediment surface (mbsf)-just above the sulphate boundary. Beyond the sulphate boundary gene copy numbers fell considerably, suggesting the boundary may be a critical factor in the degradation of aromatic compounds within marine sediments. At the 2.1 mbsf depth our data also suggest that known benzoyl CoA reductase utilizing bacteria are readily detectable.

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P. Flanagan, B. Kelleher, S. O’Reilly, M. Szpak, X. Monteys, P. Kelly, A. Kulakova, L. Kulakov and C. Allen, "A Depth Resolved Insight into Benzoyl CoA Reductase and Benzoate Dioxygenase Gene Copy Numbers within a Marine Sediment Associated with Methane Seepage," Open Journal of Marine Science, Vol. 3 No. 4, 2013, pp. 175-181. doi: 10.4236/ojms.2013.34020.

Conflicts of Interest

The authors declare no conflicts of interest.


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