Microbial aldicarb transformation in aquifer, lake, and salt marsh sediments
Article Abstract:
Microbial degradation of the carbamate pesticide aldicarb appears to occur in a consortium of methanogenic microbes that use different mechanisms in the presence or absence of oxygen. Aquifer sediments transformed aldicarb only if they had previous exposure to the chemical. The deeper the sediment, and the lower the ambient dissolved oxygen level, the higher the rate of aldicarb transformation. Aldicarb degradation in anoxic lake and salt marsh sediments was higher than that in aquifer sediments.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1995
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Anaerobic capacities of leaf litter
Article Abstract:
The anaerobic incubation of leaf litter at 20 degree celsius spontaneously produces organic acids, phenolic compounds, carbon dioxide, hydrogen gas and alcohols under moistened conditions in microcosms. The predominant organic product is acetate, which is formed regardless of the extent of litter decomposition. Supplemental hydrogen gas is used in the acetogenic synthesis of acetate. Partially decomposed litter induces acetoclastic methanogenesis after an extended lag phase.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1996
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Rapid anaerobic benzene oxidation with a variety of chelated Fe(III) forms
Article Abstract:
Fe(III) chelators such as EDTA, N-methyliminodiacetic acid, ethanol diglycine, humic acid, and phosphates induce benzene biodegradation of the aquifers contaminated with aromatic hydrocarbons. The chelated Fe(III) acts as an electron acceptor and is reduced during anaerobic benzene oxidation. The rate of degradation depends on the accessability of Fe(III) oxides to the aromatic hydrocarbon-degrading Fe(III) reducers.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1996
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