Evaluation of methyl fluoride and dimethyl ether as inhibitors of aerobic methane oxidation
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Abstract
Methyl fluoride (MF) and dimethyl ether (DME) were effective inhibitors of aerobic methanotrophy in a variety of soils. MF and DME blocked consumption of CH4 as well as the oxidation of 14CH4 to 14CO2, but neither MF nor DME affected the oxidation of [14C]methanol or [14C]formate to 14CO2. Cooxidation of ethane and propane by methane-oxidizing soils was also inhibited by MF. Nitrification (ammonia oxidation) in soils was inhibited by both MF and DME. Production of N2O via nitrification was inhibited by MF; however, MF did not affect N2O production associated with denitrification. Methanogenesis was partially inhibited by MF but not by DME. Methane oxidation was ∼100-fold more sensitive to MF than was methanogenesis, indicating that an optimum concentration could be employed to selectively block methanotrophy. MF inhibited methane oxidation by cell suspensions of Methylococcus capsulatus; however, DME was a much less effective inhibitor.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Evaluation of methyl fluoride and dimethyl ether as inhibitors of aerobic methane oxidation |
| Series title | Applied and Environmental Microbiology |
| DOI | 10.1128/aem.58.9.2983-2992.1992 |
| Volume | 58 |
| Issue | 9 |
| Year Published | 1992 |
| Language | English |
| Publisher | American Society for Microbiology |
| Contributing office(s) | San Francisco Bay-Delta, Toxic Substances Hydrology Program, Pacific Regional Director's Office |
| Description | 10 p. |
| First page | 2983 |
| Last page | 2992 |
| Country | United States |
| State | California |
| Other Geospatial | Palo Alto Refuse Disposal Area, Sacramento River, San Joaquin River, Searsville Lake, Sherman Island |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |