Anaerobic Oxidation of Fatty Acids and Alkenes by the Hyperthermophilic Sulfate-Reducing Archaeon Archaeoglobus fulgidus

Nadia Khélifi (1, 2) , Vincent Grossi (3) , Moktar Hamdi (1) , Alain Dolla (4) , Jean-Luc Tholozan (2) , Bernard Ollivier (2) , Agnès Hirschler-Réa (2)

1 Laboratoire d'Ecologie et de Technologie Microbienne
2 ESIL GMBA - Laboratoire de Microbiologie IRD
3 PEPS - PaleoEnvironnements et PaleobioSphere
4 IMR - Interactions et Modulateurs de Réponses

Archaeoglobus fulgidus oxidizes fatty acids (C(4) to C(18)) and n-alk-1-enes (C(12:1) to C(21:1)) in the presence of thiosulfate as a terminal electron acceptor. End products of metabolism were CO(2) and sulfide. Growth on perdeuterated hexadecene yielded C(15)- to C(17)-labeled fatty acids as metabolites, thus confirming the ability of A. fulgidus to oxidize alkyl chains.

Keywords: SP NOV.; GEN. NOV.; GENOME SEQUENCE; OIL-RESERVOIRS; NORTH-SEA; BACTERIUM; DESULFATIBACILLUM; ALKANES; METABOLISM; ARCHAEBACTERIA; SP NOV; GEN. NOV

Nadia Khélifi, Vincent Grossi, Moktar Hamdi, Alain Dolla, Jean-Luc Tholozan, et al.. Anaerobic Oxidation of Fatty Acids and Alkenes by the Hyperthermophilic Sulfate-Reducing Archaeon Archaeoglobus fulgidus. Applied and Environmental Microbiology, 2010, 76 (9), pp.3057-3060. ⟨10.1128/AEM.02810-09⟩. ⟨insu-00686921⟩