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Physical disturbance to ecological niches created by soil structure alters community composition of methanotrophs
Citation
Kumaresan, D and Stralis-Pavese, N and Abell, GCJ and Bodrossy, L and Murrell, JC, Physical disturbance to ecological niches created by soil structure alters community composition of methanotrophs, Environmental Microbiology Reports, 3, (5) pp. 613-621. ISSN 1758-2229 (2011) [Refereed Article]
Copyright Statement
Copyright 2011 Society for Applied Microbiology and Blackwell Publishing Ltd
DOI: doi: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 Details
Item Type: | Refereed Article |
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Keywords: | physical disturbance, ecological niches, soil structure, methanotrophs, soil biology |
Research Division: | Environmental Sciences |
Research Group: | Soil sciences |
Research Field: | Soil biology |
Objective Division: | Environmental Management |
Objective Group: | Other environmental management |
Objective Field: | Other environmental management not elsewhere classified |
UTAS Author: | Bodrossy, L (Dr Levente Bodrossy) |
ID Code: | 117045 |
Year Published: | 2011 |
Web of Science® Times Cited: | 12 |
Deposited By: | Tasmanian Institute of Agriculture |
Deposited On: | 2017-05-29 |
Last Modified: | 2017-09-29 |
Downloads: | 0 |
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