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Catabolic pathways and enzymes involved in anaerobic degradation of terpenes

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Harder,  Jens
Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Marmulla,  Robert
Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Citation

Harder, J., & Marmulla, R. (2017). Catabolic pathways and enzymes involved in anaerobic degradation of terpenes. In Anaerobic Utilization of Hydrocarbons, Oils, and Lipids (pp. 1-15).


Cite as: https://hdl.handle.net/21.11116/0000-0002-FEC1-6
Abstract
Monoterpenes are ubiquitous and, in contrast to other terpenes, their anaerobic mineralization has been studied, especially in denitrifying betaproteobacteria. Castellaniella defragrans has a degradation pathway for cyclic monoterpenes, with a limonene dehydrogenase and a ring-cleavage reaction known from anoxygenic phototrophic bacteria. Toxic monoterpene alcohols are transformed in the periplasm by the linalool dehydratase/isomerase (Ldi) to the less toxic myrcene. Thauera linaloolentis degrades linalool with a membrane-anchored linalool isomerase and the enzymes of the Atu/Liu pathways for acyclic monoterpenes. The development of a genetic system for Castellaniella defragrans together with physiological and biochemical studies have provided an excellent toolbox to study the monoterpene metabolism. On the horizon, Pseudomonas aeruginosa and other gammaproteobacterial pseudomonads are waiting for a thorough exploration of their monoterpene metabolism.