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Physical disturbance to ecological niches created by soil structure alters community composition of methanotrophs
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Kumaresan, Deepak, Stralis-Pavese, Nancy, Abell, Guy C. J., Bodrossy, Levente and Murrell, J. C. (J. Colin) (2011) Physical disturbance to ecological niches created by soil structure alters community composition of methanotrophs. Environmental Microbiology Reports, Volume 3 (Number 5). pp. 613-621. doi:10.1111/j.1758-2229.2011.00270.x
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Official URL: http://dx.doi.org/10.1111/j.1758-2229.2011.00270.x
Abstract
Aggregates of different sizes and stability in soil create a composite of ecological niches differing in terms of physico-chemical and structural characteristics. The aim of this study was to identify, using DNA-SIP and mRNA-based microarray analysis, whether shifts in activity and community composition of methanotrophs occur when ecological niches created by soil structure are physically perturbed. Landfill cover soil was subject to three treatments termed: 'control' (minimal structural disruption), 'sieved' (sieved soil using 2 mm mesh) and 'ground' (grinding using mortar and pestle). 'Sieved' and 'ground' soil treatments exhibited higher methane oxidation potentials compared with the 'control' soil treatment. Analysis of the active community composition revealed an effect of physical disruption on active methanotrophs. Type I methanotrophs were the most active methanotrophs in 'sieved' and 'ground' soil treatments, whereas both Type I and Type II methanotrophs were active in the 'control' soil treatment. The result emphasize that changes to a particular ecological niche may not result in an immediate change to the active bacterial composition and change in composition will depend on the ability of the bacterial communities to respond to the perturbation.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QR Microbiology | ||||
| Divisions: | Faculty of Science > Life Sciences (2010- ) | ||||
| Library of Congress Subject Headings (LCSH): | Methanotrophs -- Research, Methane -- Oxidation, DNA microarrays, Soil structure, Bacteria -- Ecology -- Research, Methane -- Environmental aspects, Sanitary landfills -- Environmental aspects | ||||
| Journal or Publication Title: | Environmental Microbiology Reports | ||||
| Publisher: | Wiley-Blackwell Publishing Ltd. | ||||
| ISSN: | 1758-2229 | ||||
| Official Date: | October 2011 | ||||
| Dates: |
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| Volume: | Volume 3 | ||||
| Number: | Number 5 | ||||
| Page Range: | pp. 613-621 | ||||
| DOI: | 10.1111/j.1758-2229.2011.00270.x | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Natural Environment Research Council (Great Britain) (NERC), European Science Foundation (ESF), Fonds zur Förderung der Wissenschaftlichen Forschung (Austria) (FWF) | ||||
| Grant number: | FP018 (ESF), I40-B06 (FWF) |
Data sourced from Thomson Reuters' Web of Knowledge
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