Microbial community structure in Ancient European Arctic peatlands
Northern peatlands, which are crucial reservoirs of carbon and nitrogen (415 +/- 150 and 10 +/- 7 Pg, respectively), are vulnerable to microbial mineralization after permafrost thaw. This study was carried out in four key sites containing northern permafrost peatland, which are located along the sou...
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fttomskstateuniv:koha:001015417 2024-01-07T09:41:49+01:00 Microbial community structure in Ancient European Arctic peatlands Pastukhov, Alexander Kovaleva, Vera Kaverin, Dmitry 2022 https://doi.org/10.3390/plants11202704 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001015417 eng eng koha:001015417 doi:10.3390/plants11202704 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001015417 Plants. 2022. Vol. 11, № 20. P. 2704 (1-16) аминокислоты бактерии криолитозона болота торфяные плато азот грибы археи статьи в журналах info:eu-repo/semantics/article 2022 fttomskstateuniv https://doi.org/10.3390/plants11202704 2023-12-12T17:42:13Z Northern peatlands, which are crucial reservoirs of carbon and nitrogen (415 +/- 150 and 10 +/- 7 Pg, respectively), are vulnerable to microbial mineralization after permafrost thaw. This study was carried out in four key sites containing northern permafrost peatland, which are located along the southern cryolithozone. The aim of this study is to characterize amino acids and the microbial community composition in peat strata along a climate gradient. Amino acids and microbiota diversity were studied by liquid chromatography and a quantitative polymerase chain reaction. The share of amino acid fragments was 2.6-7.8, and it is highly significantly correlated (r = 0.87, -0.74 and 0.67, p < 0.05) with the organic nitrogen concentration in the soil, the C/N ratio, and delta N-15. The data shows the existence of a large pool of microorganisms concentrated in permafrost peatlands, and a vertical continuum of bacteria, archaea, and microscopic fungi along the peat profile, due to the presence of microorganisms in each layer, throughout all the peat strata. There is no significant correlation between microorganism distribution and the plant macrofossil composition of the peat strata. Determining factors for the development of microorganism abundance are aeration and hydrothermal conditions. The availability of nitrogen will limit the ability of plants and microorganisms to respond to changing environmental conditions; however, with the increased decomposition of organic matter, amino acids will be released as organic sources of nitrogen stored in the protein material of peat-forming plants and microbial communities, which can also affect the organic nitrogen cycle. Article in Journal/Newspaper Arctic permafrost Tomsk State University Research Library Arctic Plants 11 20 2704 |
institution |
Open Polar |
collection |
Tomsk State University Research Library |
op_collection_id |
fttomskstateuniv |
language |
English |
topic |
аминокислоты бактерии криолитозона болота торфяные плато азот грибы археи |
spellingShingle |
аминокислоты бактерии криолитозона болота торфяные плато азот грибы археи Pastukhov, Alexander Kovaleva, Vera Kaverin, Dmitry Microbial community structure in Ancient European Arctic peatlands |
topic_facet |
аминокислоты бактерии криолитозона болота торфяные плато азот грибы археи |
description |
Northern peatlands, which are crucial reservoirs of carbon and nitrogen (415 +/- 150 and 10 +/- 7 Pg, respectively), are vulnerable to microbial mineralization after permafrost thaw. This study was carried out in four key sites containing northern permafrost peatland, which are located along the southern cryolithozone. The aim of this study is to characterize amino acids and the microbial community composition in peat strata along a climate gradient. Amino acids and microbiota diversity were studied by liquid chromatography and a quantitative polymerase chain reaction. The share of amino acid fragments was 2.6-7.8, and it is highly significantly correlated (r = 0.87, -0.74 and 0.67, p < 0.05) with the organic nitrogen concentration in the soil, the C/N ratio, and delta N-15. The data shows the existence of a large pool of microorganisms concentrated in permafrost peatlands, and a vertical continuum of bacteria, archaea, and microscopic fungi along the peat profile, due to the presence of microorganisms in each layer, throughout all the peat strata. There is no significant correlation between microorganism distribution and the plant macrofossil composition of the peat strata. Determining factors for the development of microorganism abundance are aeration and hydrothermal conditions. The availability of nitrogen will limit the ability of plants and microorganisms to respond to changing environmental conditions; however, with the increased decomposition of organic matter, amino acids will be released as organic sources of nitrogen stored in the protein material of peat-forming plants and microbial communities, which can also affect the organic nitrogen cycle. |
format |
Article in Journal/Newspaper |
author |
Pastukhov, Alexander Kovaleva, Vera Kaverin, Dmitry |
author_facet |
Pastukhov, Alexander Kovaleva, Vera Kaverin, Dmitry |
author_sort |
Pastukhov, Alexander |
title |
Microbial community structure in Ancient European Arctic peatlands |
title_short |
Microbial community structure in Ancient European Arctic peatlands |
title_full |
Microbial community structure in Ancient European Arctic peatlands |
title_fullStr |
Microbial community structure in Ancient European Arctic peatlands |
title_full_unstemmed |
Microbial community structure in Ancient European Arctic peatlands |
title_sort |
microbial community structure in ancient european arctic peatlands |
publishDate |
2022 |
url |
https://doi.org/10.3390/plants11202704 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001015417 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost |
genre_facet |
Arctic permafrost |
op_source |
Plants. 2022. Vol. 11, № 20. P. 2704 (1-16) |
op_relation |
koha:001015417 doi:10.3390/plants11202704 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001015417 |
op_doi |
https://doi.org/10.3390/plants11202704 |
container_title |
Plants |
container_volume |
11 |
container_issue |
20 |
container_start_page |
2704 |
_version_ |
1787422624793493504 |