Earthworm activity in a simulated landfill cover soil shifts the community composition of active methanotrophs.

Landfills represent a major source of methane in the atmosphere. In a previous study, we demonstrated that earthworm activity in landfill cover soil can increase soil methane oxidation capacity. In this study, a simulated landfill cover soil mesocosm (1 m × 0.15 m) was used to observe the influence...

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Main Authors: Kumaresan, D, Héry, M, Bodrossy, L, Singer, A, Stralis-Pavese, N, Thompson, I, Murrell, J
Format: Journal article
Language:English
Published: 2011
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author Kumaresan, D
Héry, M
Bodrossy, L
Singer, A
Stralis-Pavese, N
Thompson, I
Murrell, J
author_facet Kumaresan, D
Héry, M
Bodrossy, L
Singer, A
Stralis-Pavese, N
Thompson, I
Murrell, J
author_sort Kumaresan, D
collection OXFORD
description Landfills represent a major source of methane in the atmosphere. In a previous study, we demonstrated that earthworm activity in landfill cover soil can increase soil methane oxidation capacity. In this study, a simulated landfill cover soil mesocosm (1 m × 0.15 m) was used to observe the influence of earthworms (Eisenia veneta) on the active methanotroph community composition, by analyzing the expression of the pmoA gene, which is responsible for methane oxidation. mRNA-based pmoA microarray analysis revealed that earthworm activity in landfill cover soil stimulated activity of type I methanotrophs (Methylobacter, Methylomonas, Methylosarcina spp.) compared to type II methanotrophs (particularly Methylocystis spp.). These results, along with previous studies of methanotrophs in landfill cover soil, can now be used to plan in situ field studies to integrate earthworm-induced methanotrophy with other landfill management practises in order to maximize soil methane oxidation and reduce methane emissions from landfills.
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spelling oxford-uuid:ee140659-3140-4401-bb1f-7bba20f4d1182022-03-27T11:30:00ZEarthworm activity in a simulated landfill cover soil shifts the community composition of active methanotrophs.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ee140659-3140-4401-bb1f-7bba20f4d118EnglishSymplectic Elements at Oxford2011Kumaresan, DHéry, MBodrossy, LSinger, AStralis-Pavese, NThompson, IMurrell, JLandfills represent a major source of methane in the atmosphere. In a previous study, we demonstrated that earthworm activity in landfill cover soil can increase soil methane oxidation capacity. In this study, a simulated landfill cover soil mesocosm (1 m × 0.15 m) was used to observe the influence of earthworms (Eisenia veneta) on the active methanotroph community composition, by analyzing the expression of the pmoA gene, which is responsible for methane oxidation. mRNA-based pmoA microarray analysis revealed that earthworm activity in landfill cover soil stimulated activity of type I methanotrophs (Methylobacter, Methylomonas, Methylosarcina spp.) compared to type II methanotrophs (particularly Methylocystis spp.). These results, along with previous studies of methanotrophs in landfill cover soil, can now be used to plan in situ field studies to integrate earthworm-induced methanotrophy with other landfill management practises in order to maximize soil methane oxidation and reduce methane emissions from landfills.
spellingShingle Kumaresan, D
Héry, M
Bodrossy, L
Singer, A
Stralis-Pavese, N
Thompson, I
Murrell, J
Earthworm activity in a simulated landfill cover soil shifts the community composition of active methanotrophs.
title Earthworm activity in a simulated landfill cover soil shifts the community composition of active methanotrophs.
title_full Earthworm activity in a simulated landfill cover soil shifts the community composition of active methanotrophs.
title_fullStr Earthworm activity in a simulated landfill cover soil shifts the community composition of active methanotrophs.
title_full_unstemmed Earthworm activity in a simulated landfill cover soil shifts the community composition of active methanotrophs.
title_short Earthworm activity in a simulated landfill cover soil shifts the community composition of active methanotrophs.
title_sort earthworm activity in a simulated landfill cover soil shifts the community composition of active methanotrophs
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