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Microbiological processes in the terrestrial carbon cycle: Methane cycling in peat
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UNSPECIFIED (1998) Microbiological processes in the terrestrial carbon cycle: Methane cycling in peat. ATMOSPHERIC ENVIRONMENT, 32 (19). pp. 3247-3255. ISSN 1352-2310.
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Abstract
Coring and cutting devices were developed to extract 30 cm cores;from pear under conditions which preserve their physical/spatial integrity, maintain anoxic conditions and allow transverse sectioning. Methane production potential, measured on 1-2 cm vertical sections, was broadly absent from the upper 5 cm, maximum in the next 10 cm and thereafter declined. Methane oxidation potential was maximum in the upper 10 cm and thereafter detected in reducing amounts. Molecular methods, based on the extraction of total DNA and its PGR amplification and hybridisation with specific phylogenetic 16S rRNA and functional gene specific primers and probes, were developed to analyse the methane producing and methane oxidising microbial communities. The functional gene sequences were based on methanogen methyl coenzyme reductase and methanotroph methane monooxygenase. Methanotrophs are located throughout the core whereas methanogens are restricted to the lower zones. The composition of the microbial communities is however complex consisting of a number of novel species not previously recognised and with the various species/sub-groups occupying different vertical zones. (C) 1948 Elsevier Science Ltd. All rights reserved.
Item Type: | Journal Article | ||||
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Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences Q Science > QC Physics |
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Journal or Publication Title: | ATMOSPHERIC ENVIRONMENT | ||||
Publisher: | PERGAMON-ELSEVIER SCIENCE LTD | ||||
ISSN: | 1352-2310 | ||||
Official Date: | October 1998 | ||||
Dates: |
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Volume: | 32 | ||||
Number: | 19 | ||||
Number of Pages: | 9 | ||||
Page Range: | pp. 3247-3255 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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