Anaerobic metabolism of hexadecane in sediments

28 January 1978

journal article
research article
Published by Taylor & Francis in Geomicrobiology Journal

Vol. 1 (1) , 1-9
https://doi.org/10.1080/01490457809377720

Abstract

Reducing sediments of Lake Mendota were challenged to demonstrate evidence of anaerobic conversion of l‐¹⁴C‐hexadecane to ¹⁴CO₂. Low levels of ¹⁴CO₂ were detected above formaldehyde controls in anoxic sediment and bottom waters and in surface water sparged with nitrogen. Aerobic incubation of the same sediment and water demonstrated extensive conversion of l‐¹⁴C‐hexade‐cane to ¹⁴CO₂. The low levels of ¹⁴CO₂ detected in anaerobic incubation were not increased by addition of nitrate or in a pre‐reduced medium containing nitrate and sulfate. An isotope‐recovery experiment demonstrated that 13.7% of added l‐¹⁴C‐hexadecane was converted to ¹⁴C‐cell carbon and ¹⁴CO₂ after 375 h incubation.

Keywords

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