Browsing by Author Callaghan, Amy V.

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  • Authors: Callaghan, Amy V. (2006)

    Alkanes comprise a large component of petroleum. Biotransformation is the most important process governing their environmental fate and transport. A denitrifying, hexadecane-degrading consortium was established with Onondaga Lake, NY sediment. Phylogenetic analyses, based on DGGE and construction of clone libraries, revealed a diverse community of denitrifiers. Both methods identified an Azoarcus sp.. Protonated, d17- and [1-13C]-pentadecanoic acids and protonated, d24- and d25-tridecanoic acids were identified via GC-MS analysis. These data support a mechanism that involves carboxylation at the C-3 carbon, with subsequent C2-elimination. Hexadecane was mineralized as demonstrated by ...