NDLI: Methanogen Communities in a Drained Bog: Effect of Ash Fertilization

Content Provider	Springer Nature Link
Author	Galand, P.E. Juottonen, H. Fritze, H. Yrjälä, K.
Copyright Year	2005
Abstract	Forestry practises such has drainage have been shown to decrease emissions of the greenhouse gas methane (CH4) from peatlands. The aim of the study was to examine the methanogen populations in a drained bog in northern Finland, and to assess the possible effect of ash fertilization on potential methane production and methanogen communities. Peat samples were collected from control and ash fertilized (15,000 kg/ha) plots 5 years after ash application, and potential CH4 production was measured. The methanogen community structure was studied by DNA isolation, PCR amplification of the methyl coenzyme-M reductase (mcr) gene, denaturing gradient gel electrophoresis (DGGE), and restriction fragment length polymorphism (RFLP) analysis. The drained peatland showed low potential methane production and methanogen diversity in both control and ash-fertilized plots. Samples from both upper and deeper layers of peat were dominated by three groups of sequences related to Rice cluster-I hydrogenotroph methanogens. Even though pH was marginally greater in the ash-treated site, the occurrence of those sequences was not affected by ash fertilization. Interestingly, a less common group of sequences, related to the Fen cluster, were found only in the fertilized plots. The study confirmed the depth related change of methanogen populations in peatland.
Starting Page	209
Ending Page	217
Page Count	9
File Format	PDF
ISSN	00953628
Journal	Microbial Ecology
Volume Number	49
Issue Number	2
e-ISSN	1432184X
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-06-17
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Ecology Microbiology Geoecology/Natural Processes Nature Conservation
Content Type	Text
Resource Type	Article
Subject	Soil Science Ecology Ecology, Evolution, Behavior and Systematics

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