Increases in temperature and nutrient availability positively affect methane-cycling microorganisms in Arctic thermokarst lake sediments.
Contains fulltext : 198842.pdf (Publisher’s version ) (Open Access) Arctic permafrost soils store large amounts of organic matter that is sensitive to temperature increases and subsequent microbial degradation to methane (CH 4 ) and carbon dioxide (CO 2 ). Here, we studied methanogenic and methanotr...
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Online Access: | http://hdl.handle.net/2066/198842 https://repository.ubn.ru.nl//bitstream/handle/2066/198842/198842.pdf https://doi.org/10.1111/1462-2920.14345 |
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ftunivnijmegen:oai:repository.ubn.ru.nl:2066/198842 2024-02-27T08:37:31+00:00 Increases in temperature and nutrient availability positively affect methane-cycling microorganisms in Arctic thermokarst lake sediments. Jong, A.E.E. de Zandt, M.H. in 't Meisel, O.H. Jetten, M.S.M. Dean, J.F. Rasigraf, O. Welte, C.U. 2018 http://hdl.handle.net/2066/198842 https://repository.ubn.ru.nl//bitstream/handle/2066/198842/198842.pdf https://doi.org/10.1111/1462-2920.14345 unknown https://repository.ubn.ru.nl//bitstream/handle/2066/198842/198842.pdf http://hdl.handle.net/2066/198842 doi:10.1111/1462-2920.14345 Environmental Microbiology, 20, 12, pp. 4314-4327 Ecological Microbiology Article / Letter to editor 2018 ftunivnijmegen https://doi.org/10.1111/1462-2920.14345 2024-01-31T23:08:42Z Contains fulltext : 198842.pdf (Publisher’s version ) (Open Access) Arctic permafrost soils store large amounts of organic matter that is sensitive to temperature increases and subsequent microbial degradation to methane (CH 4 ) and carbon dioxide (CO 2 ). Here, we studied methanogenic and methanotrophic activity and community composition in thermokarst lake sediments from Utqiag vik (formerly Barrow), Alaska. This experiment was carried out under in situ temperature conditions (4 degrees C) and the IPCC 2013 Arctic climate change scenario (10 degrees C) after addition of methanogenic and methanotrophic substrates for nearly a year. Trimethylamine (TMA) amendment with warming showed highest maximum CH 4 production rates, being 30% higher at 10 degrees C than at 4 degrees C. Maximum methanotrophic rates increased by up to 57% at 10 degrees C compared to 4 degrees C. 16S rRNA gene sequencing indicated high relative abundance of Methanosarcinaceae in TMA amended incubations, and for methanotrophic incubations Methylococcaeae were highly enriched. Anaerobic methanotrophic activity with nitrite or nitrate as electron acceptor was not detected. This study indicates that the methane cycling microbial community can adapt to temperature increases and that their activity is highly dependent on substrate availability. 01 december 2018 Article in Journal/Newspaper Arctic Barrow Climate change permafrost Thermokarst Alaska Radboud University: DSpace Arctic Environmental Microbiology 20 12 4314 4327 |
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Open Polar |
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Radboud University: DSpace |
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ftunivnijmegen |
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unknown |
topic |
Ecological Microbiology |
spellingShingle |
Ecological Microbiology Jong, A.E.E. de Zandt, M.H. in 't Meisel, O.H. Jetten, M.S.M. Dean, J.F. Rasigraf, O. Welte, C.U. Increases in temperature and nutrient availability positively affect methane-cycling microorganisms in Arctic thermokarst lake sediments. |
topic_facet |
Ecological Microbiology |
description |
Contains fulltext : 198842.pdf (Publisher’s version ) (Open Access) Arctic permafrost soils store large amounts of organic matter that is sensitive to temperature increases and subsequent microbial degradation to methane (CH 4 ) and carbon dioxide (CO 2 ). Here, we studied methanogenic and methanotrophic activity and community composition in thermokarst lake sediments from Utqiag vik (formerly Barrow), Alaska. This experiment was carried out under in situ temperature conditions (4 degrees C) and the IPCC 2013 Arctic climate change scenario (10 degrees C) after addition of methanogenic and methanotrophic substrates for nearly a year. Trimethylamine (TMA) amendment with warming showed highest maximum CH 4 production rates, being 30% higher at 10 degrees C than at 4 degrees C. Maximum methanotrophic rates increased by up to 57% at 10 degrees C compared to 4 degrees C. 16S rRNA gene sequencing indicated high relative abundance of Methanosarcinaceae in TMA amended incubations, and for methanotrophic incubations Methylococcaeae were highly enriched. Anaerobic methanotrophic activity with nitrite or nitrate as electron acceptor was not detected. This study indicates that the methane cycling microbial community can adapt to temperature increases and that their activity is highly dependent on substrate availability. 01 december 2018 |
format |
Article in Journal/Newspaper |
author |
Jong, A.E.E. de Zandt, M.H. in 't Meisel, O.H. Jetten, M.S.M. Dean, J.F. Rasigraf, O. Welte, C.U. |
author_facet |
Jong, A.E.E. de Zandt, M.H. in 't Meisel, O.H. Jetten, M.S.M. Dean, J.F. Rasigraf, O. Welte, C.U. |
author_sort |
Jong, A.E.E. de |
title |
Increases in temperature and nutrient availability positively affect methane-cycling microorganisms in Arctic thermokarst lake sediments. |
title_short |
Increases in temperature and nutrient availability positively affect methane-cycling microorganisms in Arctic thermokarst lake sediments. |
title_full |
Increases in temperature and nutrient availability positively affect methane-cycling microorganisms in Arctic thermokarst lake sediments. |
title_fullStr |
Increases in temperature and nutrient availability positively affect methane-cycling microorganisms in Arctic thermokarst lake sediments. |
title_full_unstemmed |
Increases in temperature and nutrient availability positively affect methane-cycling microorganisms in Arctic thermokarst lake sediments. |
title_sort |
increases in temperature and nutrient availability positively affect methane-cycling microorganisms in arctic thermokarst lake sediments. |
publishDate |
2018 |
url |
http://hdl.handle.net/2066/198842 https://repository.ubn.ru.nl//bitstream/handle/2066/198842/198842.pdf https://doi.org/10.1111/1462-2920.14345 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Barrow Climate change permafrost Thermokarst Alaska |
genre_facet |
Arctic Barrow Climate change permafrost Thermokarst Alaska |
op_source |
Environmental Microbiology, 20, 12, pp. 4314-4327 |
op_relation |
https://repository.ubn.ru.nl//bitstream/handle/2066/198842/198842.pdf http://hdl.handle.net/2066/198842 doi:10.1111/1462-2920.14345 |
op_doi |
https://doi.org/10.1111/1462-2920.14345 |
container_title |
Environmental Microbiology |
container_volume |
20 |
container_issue |
12 |
container_start_page |
4314 |
op_container_end_page |
4327 |
_version_ |
1792044508387475456 |