| Title: | Microbial cycling of volatile organic sulfur compounds |
| Author(s): | Lomans BP; Van Der Drift C; Pol A; Op den Camp HJ; |
| Address: | "Department of Microbiology, Faculty of Science, University of Nijmegen, The Netherlands" |
| DOI: | 10.1007/s00018-002-8450-6 |
| ISSN/ISBN: | 1420-682X (Print) 1420-682X (Linking) |
| Abstract: | "Microbial cycling of volatile organic sulfur compounds (VOSCs), especially dimethyl sulfide (DMS) and methanethiol (MT), is intensively studied because these compounds play an important role in the processes of global warming, acid precipitation, and the global sulfur cycle. VOSC concentrations in freshwater sediments are low due to the balance between the formation and degradation of these compounds. These reactions occur for the greater part at the oxic/anoxic interphase of sediment and water column. In contrast to marine ecosystems, where dimethylsulfoniopropionate is the main precursor of MT and DMS, in freshwater ecosystems, VOSCs are formed mainly by methylation of sulfide and to a lesser extent from the degradation of S-containing amino acids. One of the major routes for DMS and MT formation through sulfide methylation is anaerobic O-demethylation of methoxylated aromatic compounds. Inhibition studies have revealed that the major part of the endogenously produced MT and DMS is degraded anaerobically by methanogens. The major bacterial groups involved in formation and consumption of VOSCs are described" |
| Keywords: | "Bacteria/*metabolism Ecosystem Fresh Water Methylation Models, Chemical Oxidation-Reduction Sulfhydryl Compounds/metabolism Sulfides/metabolism Sulfur Compounds/*metabolism;" |
| Notes: | "MedlineLomans, B P van der Drift, C Pol, A Op den Camp, H J M eng Review Switzerland 2002/05/23 Cell Mol Life Sci. 2002 Apr; 59(4):575-88. doi: 10.1007/s00018-002-8450-6" |
