Next Article in Journal
Evaluation of a Newly Developed Vacuum Dried Microtiter Plate for Rapid Biocide Susceptibility Testing of Clinical Enterococcus faecium Isolates
Next Article in Special Issue
Environmental Factors, More Than Spatial Distance, Explain Community Structure of Soil Ammonia-Oxidizers in Wetlands on the Qinghai–Tibetan Plateau
Previous Article in Journal
Biological Machine Learning Combined with Campylobacter Population Genomics Reveals Virulence Gene Allelic Variants Cause Disease
Previous Article in Special Issue
The Saltpan Microbiome Is Structured by Sediment Depth and Minimally Influenced by Variable Hydration
Article

Long-Term Rewetting of Three Formerly Drained Peatlands Drives Congruent Compositional Changes in Pro- and Eukaryotic Soil Microbiomes through Environmental Filtering

1
Institute of Microbiology, University of Greifswald, Felix-Hausdorff-Str. 8, 17487 Greifswald, Germany
2
Faculty of Agriculture and Environmental Sciences, University of Rostock, Justus-von-Liebig-Weg 6, 18059 Rostock, Germany
3
Institute of Botany and Landscape Ecology, University of Greifswald, Soldmannstraße 15, 17487 Greifswald, Germany
4
Greifswald Mire Center, Soldmannstraße 15, 17487 Greifswald, Germany
5
Department of Chemical Analytics and Biogeochemistry, Leibniz-Institute of Freshwater Biology and Inland Fisheries, Müggelseedamm 301, 12587 Berlin, Germany
*
Author to whom correspondence should be addressed.
Current address: Department of Bioscience, Aarhus University, Vejlsøvej 25, 8600 Silkeborg, Denmark.
Microorganisms 2020, 8(4), 550; https://doi.org/10.3390/microorganisms8040550
Received: 15 February 2020 / Revised: 2 April 2020 / Accepted: 8 April 2020 / Published: 10 April 2020
(This article belongs to the Special Issue Wetland Soil Microbiology)
Drained peatlands are significant sources of the greenhouse gas (GHG) carbon dioxide. Rewetting is a proven strategy used to protect carbon stocks; however, it can lead to increased emissions of the potent GHG methane. The response to rewetting of soil microbiomes as drivers of these processes is poorly understood, as are the biotic and abiotic factors that control community composition. We analyzed the pro- and eukaryotic microbiomes of three contrasting pairs of minerotrophic fens subject to decade-long drainage and subsequent long-term rewetting. Abiotic soil properties including moisture, dissolved organic matter, methane fluxes, and ecosystem respiration rates were also determined. The composition of the microbiomes was fen-type-specific, but all rewetted sites showed higher abundances of anaerobic taxa compared to drained sites. Based on multi-variate statistics and network analyses, we identified soil moisture as a major driver of community composition. Furthermore, salinity drove the separation between coastal and freshwater fen communities. Methanogens were more than 10-fold more abundant in rewetted than in drained sites, while their abundance was lowest in the coastal fen, likely due to competition with sulfate reducers. The microbiome compositions were reflected in methane fluxes from the sites. Our results shed light on the factors that structure fen microbiomes via environmental filtering. View Full-Text
Keywords: peatland management; soil microbiome; methanogens; sulfate reducers; methanotrophic bacteria; greenhouse gas; methane peatland management; soil microbiome; methanogens; sulfate reducers; methanotrophic bacteria; greenhouse gas; methane
Show Figures

Figure 1

MDPI and ACS Style

Weil, M.; Wang, H.; Bengtsson, M.; Köhn, D.; Günther, A.; Jurasinski, G.; Couwenberg, J.; Negassa, W.; Zak, D.; Urich, T. Long-Term Rewetting of Three Formerly Drained Peatlands Drives Congruent Compositional Changes in Pro- and Eukaryotic Soil Microbiomes through Environmental Filtering. Microorganisms 2020, 8, 550. https://doi.org/10.3390/microorganisms8040550

AMA Style

Weil M, Wang H, Bengtsson M, Köhn D, Günther A, Jurasinski G, Couwenberg J, Negassa W, Zak D, Urich T. Long-Term Rewetting of Three Formerly Drained Peatlands Drives Congruent Compositional Changes in Pro- and Eukaryotic Soil Microbiomes through Environmental Filtering. Microorganisms. 2020; 8(4):550. https://doi.org/10.3390/microorganisms8040550

Chicago/Turabian Style

Weil, Micha, Haitao Wang, Mia Bengtsson, Daniel Köhn, Anke Günther, Gerald Jurasinski, John Couwenberg, Wakene Negassa, Dominik Zak, and Tim Urich. 2020. "Long-Term Rewetting of Three Formerly Drained Peatlands Drives Congruent Compositional Changes in Pro- and Eukaryotic Soil Microbiomes through Environmental Filtering" Microorganisms 8, no. 4: 550. https://doi.org/10.3390/microorganisms8040550

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop