Attributes of atmospheric carbon monoxide oxidation by Maine forest soils
Article Abstract:
Atmospheric carbon monoxide (CO) oxidation by Maine forest soils is discussed. Soils consume 10-25% of the estimated global CO flux. A study has investigated distribution of CO oxidizers and CO oxidation using rate estimates and small-scale CO depth profiles. Soil water regimes involving wetting/drying were studied. Assays were made of active and microwave-inactivated soils. Responses to potential inhibitors and to assorted inorganic and organic substrates were studied. Co oxidation takes place mainly in surface soils and photooxidation of soil organic matter does not contribute significantly to CO flux. Soil water was important with optimum uptake at 30-60% water content.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
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Characterization of root-associated methanotrophs from three freshwater macrophytes: Pontederia cordata, Sparganium eurycarpum, and Sagittaria latifolia
Article Abstract:
Some seven distinct taxa, three and four each from the phylogenetically coherent groups I and II, respectively, were identified in a characterization of root-associated methanotrophs and their distribution among three common aquatic plant species. These species are Pontederia cordata, Sparganium eurycarpum, and Sagittaria latifolia. Partial 16S ribosomal DNA sequence analysis showed Group II taxa as the most abundant, with four potentially novel strains.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1998
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Carbon monoxide oxidation by bacteria associated with the roots of freshwater macrophytes
Article Abstract:
A study was conducted to characterize aerobic root-associated carbon monoxide consumption. Variations in carbon monoxide consumption as a function of root type were obtained by separating P. cordata roots into four categorized according to visual distinctions. Samples of P. cordata deep-anchor roots were incubated in a rotary shaker for 5 days. Results suggested that bacteria may influence root-associated carbon monoxide oxidation.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1998
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