The role of endophytic methane-oxidizing bacteria in submerged Sphagnum in determining methane emissions of Northeastern Siberian tundra
The role of the microbial processes governing methane emissions from tundra ecosystems is receiving increasing attention. Recently, cooperation between methanotrophic bacteria and submerged Sphagnum was shown to reduce methane emissions but also to supply CO 2 for photosynthesis for the plant. Altho...
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ftdoajarticles:oai:doaj.org/article:c2c24a84f47f4bc6b203aa28393f43c8 2023-05-15T18:40:01+02:00 The role of endophytic methane-oxidizing bacteria in submerged Sphagnum in determining methane emissions of Northeastern Siberian tundra T. C. Maximov A. J. Dolman M. S. M. Jetten H. J. M. Op den Camp N. Kip J. van Huissteden F. J. W. Parmentier 2011-05-01T00:00:00Z https://doi.org/10.5194/bg-8-1267-2011 https://doaj.org/article/c2c24a84f47f4bc6b203aa28393f43c8 EN eng Copernicus Publications http://www.biogeosciences.net/8/1267/2011/bg-8-1267-2011.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-8-1267-2011 1726-4170 1726-4189 https://doaj.org/article/c2c24a84f47f4bc6b203aa28393f43c8 Biogeosciences, Vol 8, Iss 5, Pp 1267-1278 (2011) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2011 ftdoajarticles https://doi.org/10.5194/bg-8-1267-2011 2022-12-31T10:49:50Z The role of the microbial processes governing methane emissions from tundra ecosystems is receiving increasing attention. Recently, cooperation between methanotrophic bacteria and submerged Sphagnum was shown to reduce methane emissions but also to supply CO 2 for photosynthesis for the plant. Although this process was shown to be important in the laboratory, the differences that exist in methane emissions from inundated vegetation types with or without Sphagnum in the field have not been linked to these bacteria before. In this study, chamber flux measurements, an incubation study and a process model were used to investigate the drivers and controls on the relative difference in methane emissions between a submerged Sphagnum /sedge vegetation type and an inundated sedge vegetation type without Sphagnum . It was found that methane emissions in the Sphagnum -dominated vegetation type were 50 % lower than in the vegetation type without Sphagnum . A model sensitivity analysis showed that these differences could not sufficiently be explained by differences in methane production and plant transport. The model, combined with an incubation study, indicated that methane oxidation by endophytic bacteria, living in cooperation with submerged Sphagnum , plays a significant role in methane cycling at this site. This result is important for spatial upscaling as oxidation by these bacteria is likely involved in 15 % of the net methane emissions at this tundra site. Our findings support the notion that methane-oxidizing bacteria are an important factor in understanding the processes behind methane emissions in tundra. Article in Journal/Newspaper Tundra Directory of Open Access Journals: DOAJ Articles Biogeosciences 8 5 1267 1278 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 T. C. Maximov A. J. Dolman M. S. M. Jetten H. J. M. Op den Camp N. Kip J. van Huissteden F. J. W. Parmentier The role of endophytic methane-oxidizing bacteria in submerged Sphagnum in determining methane emissions of Northeastern Siberian tundra |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
The role of the microbial processes governing methane emissions from tundra ecosystems is receiving increasing attention. Recently, cooperation between methanotrophic bacteria and submerged Sphagnum was shown to reduce methane emissions but also to supply CO 2 for photosynthesis for the plant. Although this process was shown to be important in the laboratory, the differences that exist in methane emissions from inundated vegetation types with or without Sphagnum in the field have not been linked to these bacteria before. In this study, chamber flux measurements, an incubation study and a process model were used to investigate the drivers and controls on the relative difference in methane emissions between a submerged Sphagnum /sedge vegetation type and an inundated sedge vegetation type without Sphagnum . It was found that methane emissions in the Sphagnum -dominated vegetation type were 50 % lower than in the vegetation type without Sphagnum . A model sensitivity analysis showed that these differences could not sufficiently be explained by differences in methane production and plant transport. The model, combined with an incubation study, indicated that methane oxidation by endophytic bacteria, living in cooperation with submerged Sphagnum , plays a significant role in methane cycling at this site. This result is important for spatial upscaling as oxidation by these bacteria is likely involved in 15 % of the net methane emissions at this tundra site. Our findings support the notion that methane-oxidizing bacteria are an important factor in understanding the processes behind methane emissions in tundra. |
format |
Article in Journal/Newspaper |
author |
T. C. Maximov A. J. Dolman M. S. M. Jetten H. J. M. Op den Camp N. Kip J. van Huissteden F. J. W. Parmentier |
author_facet |
T. C. Maximov A. J. Dolman M. S. M. Jetten H. J. M. Op den Camp N. Kip J. van Huissteden F. J. W. Parmentier |
author_sort |
T. C. Maximov |
title |
The role of endophytic methane-oxidizing bacteria in submerged Sphagnum in determining methane emissions of Northeastern Siberian tundra |
title_short |
The role of endophytic methane-oxidizing bacteria in submerged Sphagnum in determining methane emissions of Northeastern Siberian tundra |
title_full |
The role of endophytic methane-oxidizing bacteria in submerged Sphagnum in determining methane emissions of Northeastern Siberian tundra |
title_fullStr |
The role of endophytic methane-oxidizing bacteria in submerged Sphagnum in determining methane emissions of Northeastern Siberian tundra |
title_full_unstemmed |
The role of endophytic methane-oxidizing bacteria in submerged Sphagnum in determining methane emissions of Northeastern Siberian tundra |
title_sort |
role of endophytic methane-oxidizing bacteria in submerged sphagnum in determining methane emissions of northeastern siberian tundra |
publisher |
Copernicus Publications |
publishDate |
2011 |
url |
https://doi.org/10.5194/bg-8-1267-2011 https://doaj.org/article/c2c24a84f47f4bc6b203aa28393f43c8 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Biogeosciences, Vol 8, Iss 5, Pp 1267-1278 (2011) |
op_relation |
http://www.biogeosciences.net/8/1267/2011/bg-8-1267-2011.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-8-1267-2011 1726-4170 1726-4189 https://doaj.org/article/c2c24a84f47f4bc6b203aa28393f43c8 |
op_doi |
https://doi.org/10.5194/bg-8-1267-2011 |
container_title |
Biogeosciences |
container_volume |
8 |
container_issue |
5 |
container_start_page |
1267 |
op_container_end_page |
1278 |
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1766229121516437504 |