Methanogenic Archaea In Peatlands
Methane emission feedbacks in wetlands are predicted to influence global climate under climate change and other anthropogenic stressors. Herein, we review the taxonomy and physiological ecology of the microorganisms responsible for methane production in peatlands. Common in peat soils are five of th...
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ftunivnorthcag:oai:libres.uncg.edu/38358 2024-10-13T14:10:15+00:00 Methanogenic Archaea In Peatlands Brauer, Suzanna NC DOCKS at Appalachian State University 2020 http://libres.uncg.edu/ir/asu/f/Brauer_Suzanna_2020_Methanogenic_archaea_peatlands.pdf English eng http://libres.uncg.edu/ir/asu/f/Brauer_Suzanna_2020_Methanogenic_archaea_peatlands.pdf 2020 ftunivnorthcag 2024-09-24T15:15:03Z Methane emission feedbacks in wetlands are predicted to influence global climate under climate change and other anthropogenic stressors. Herein, we review the taxonomy and physiological ecology of the microorganisms responsible for methane production in peatlands. Common in peat soils are five of the eight described orders of methanogens spanning three phyla (Euryarchaeota, Halobacterota and Thermoplasmatota). The phylogenetic affiliation of sequences found in peat suggest that members of the thus-far-uncultivated group Candidatus Bathyarchaeota (representing a fourth phylum) may be involved in methane cycling, either anaerobic oxidation of methane and/or methanogenesis, as at least a few organisms within this group contain the essential gene, mcrA, according to metagenomic data. Methanogens in peatlands are notoriously challenging to enrich and isolate; thus, much remains unknown about their physiology and how methanogen communities will respond to environmental changes. Consistent patterns of changes in methanogen communities have been reported across studies in permafrost peatland thaw where the resulting degraded feature is thermokarst. However much remains to be understood regarding methanogen community feedbacks to altered hydrology and warming in other contexts, enhanced atmospheric pollution (N, S and metals) loading and direct anthropogenic disturbances to peatlands like drainage, horticultural peat extraction, forestry and agriculture, as well as post-disturbance reclamation. Other/Unknown Material permafrost Thermokarst University of North Carolina: NC DOCKS (Digital Online Collection of Knowledge and Scholarship) |
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Open Polar |
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University of North Carolina: NC DOCKS (Digital Online Collection of Knowledge and Scholarship) |
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ftunivnorthcag |
language |
English |
description |
Methane emission feedbacks in wetlands are predicted to influence global climate under climate change and other anthropogenic stressors. Herein, we review the taxonomy and physiological ecology of the microorganisms responsible for methane production in peatlands. Common in peat soils are five of the eight described orders of methanogens spanning three phyla (Euryarchaeota, Halobacterota and Thermoplasmatota). The phylogenetic affiliation of sequences found in peat suggest that members of the thus-far-uncultivated group Candidatus Bathyarchaeota (representing a fourth phylum) may be involved in methane cycling, either anaerobic oxidation of methane and/or methanogenesis, as at least a few organisms within this group contain the essential gene, mcrA, according to metagenomic data. Methanogens in peatlands are notoriously challenging to enrich and isolate; thus, much remains unknown about their physiology and how methanogen communities will respond to environmental changes. Consistent patterns of changes in methanogen communities have been reported across studies in permafrost peatland thaw where the resulting degraded feature is thermokarst. However much remains to be understood regarding methanogen community feedbacks to altered hydrology and warming in other contexts, enhanced atmospheric pollution (N, S and metals) loading and direct anthropogenic disturbances to peatlands like drainage, horticultural peat extraction, forestry and agriculture, as well as post-disturbance reclamation. |
author |
Brauer, Suzanna NC DOCKS at Appalachian State University |
spellingShingle |
Brauer, Suzanna NC DOCKS at Appalachian State University Methanogenic Archaea In Peatlands |
author_facet |
Brauer, Suzanna NC DOCKS at Appalachian State University |
author_sort |
Brauer, Suzanna |
title |
Methanogenic Archaea In Peatlands |
title_short |
Methanogenic Archaea In Peatlands |
title_full |
Methanogenic Archaea In Peatlands |
title_fullStr |
Methanogenic Archaea In Peatlands |
title_full_unstemmed |
Methanogenic Archaea In Peatlands |
title_sort |
methanogenic archaea in peatlands |
publishDate |
2020 |
url |
http://libres.uncg.edu/ir/asu/f/Brauer_Suzanna_2020_Methanogenic_archaea_peatlands.pdf |
genre |
permafrost Thermokarst |
genre_facet |
permafrost Thermokarst |
op_relation |
http://libres.uncg.edu/ir/asu/f/Brauer_Suzanna_2020_Methanogenic_archaea_peatlands.pdf |
_version_ |
1812817434429620224 |