Difluoromethane, a new and improved inhibitor of methanotrophy
Article Abstract:
Difluoromethane (DFM) levels were compared to the concentrations of acetylene and methyl fluoride needed for preventing methanotrophy. Findings showed that DFM is a more effective inhibitor at 30- to 50-times less concentrations than normally required for methyl fluoride. Advantages of DFM as inhibitor include its high solubility in water, being a reversible inhibitor and its inability to bind to surfaces and therefore does not need any unusual contamination prevention methods.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1998
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Selective inhibition of ammonium oxidation and nitrification-linked N2O formation by methyl fluoride and dimethyl ether
Article Abstract:
Headspace additions of CH3F and DME completely inhibited NO2 and N2O production from NH4+ during the incubation of Nitrosomonas europaea, whereas lower concentrations of these gases caused partial inhibition. In nitrified soil, CH3F and DME (dimethyl ether) limited N2O production. A 20 to 30-fold reduction of N2O in the soil was revealed in field experiments with surface flux chambers. CH3F also caused a reduction in NO3- + NO2- levels, increasing NH4+ levels in soils.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1993
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Bacterial oxidation of methyl bromide in fumigated agricultural soils
Article Abstract:
Field and laboratory investigations were carried out to determine the fate of methyl bromide in the environment during and after fumigation. Results indicate that methyl bromide is degraded by bacteria able to utilize this chemical for their growth. Further, results show that maximum bacterial activity is observed during fumigation. Chloropicrin inhibits bacterial activity and the challenges this chemical pose are described.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1997
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- Abstracts: Evaluation of methyl fluoride and dimethyl ether as inhibitors of aerobic methane oxidation. Consumption of tropospheric levels of methyl bromide by C(sub 1) compound-utilizing bacteria and comparison to saturation kinetics
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