Data_Sheet_1_Permafrost Microbial Community Structure Changes Across the Pleistocene-Holocene Boundary.pdf
Despite the presence of well-documented changes in vegetation and faunal communities at the Pleistocene-Holocene transition, it is unclear whether similar shifts occurred in soil microbes. Recent studies do not show a clear connection between soil parameters and community structure, suggesting perma...
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ftfrontimediafig:oai:figshare.com:article/12825194 2023-05-15T15:13:49+02:00 Data_Sheet_1_Permafrost Microbial Community Structure Changes Across the Pleistocene-Holocene Boundary.pdf Alireza Saidi-Mehrabad Patrick Neuberger Morteza Hajihosseini Duane Froese Brian D. Lanoil 2020-08-19T04:18:00Z https://doi.org/10.3389/fenvs.2020.00133.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Permafrost_Microbial_Community_Structure_Changes_Across_the_Pleistocene-Holocene_Boundary_pdf/12825194 unknown doi:10.3389/fenvs.2020.00133.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Permafrost_Microbial_Community_Structure_Changes_Across_the_Pleistocene-Holocene_Boundary_pdf/12825194 Environmental Science Climate Science Environmental Impact Assessment Environmental Management Soil Biology Water Treatment Processes Environmental Engineering Design Environmental Engineering Modelling Environmental Technologies permafrost microbial community Pleistocene-Holocene climate change soil physicochemical parameters Dataset 2020 ftfrontimediafig https://doi.org/10.3389/fenvs.2020.00133.s001 2020-08-19T22:54:36Z Despite the presence of well-documented changes in vegetation and faunal communities at the Pleistocene-Holocene transition, it is unclear whether similar shifts occurred in soil microbes. Recent studies do not show a clear connection between soil parameters and community structure, suggesting permafrost microbiome-climate studies may be unreliable. However, the majority of the permafrost microbial ecological studies have been performed only in either Holocene- or Pleistocene-aged sediments and not on permafrost that formed across the dramatic ecosystem reorganization at the Pleistocene-Holocene transition. In our study, we used permafrost recovered in proximity to the Pleistocene-Holocene transition subsampled under strict sterile conditions developed for ancient DNA studies. Our ordination analyses of microbial community composition based on 16S RNA genes and chemical composition of the soil samples resulted into two distinct clusters based on whether they were of late Pleistocene or Holocene age, while samples within an epoch were more similar than those across the boundary and did not result in age based separation. Between epochs, there was a statistically significant correlation between changes in OTU composition and soil chemical properties, but only Ca and Mn were correlated to OTU composition within Holocene aged samples; furthermore, no chemical parameters were correlated to OTU composition within Pleistocene aged samples. Thus, the results indicate that both soil chemical and microbial parameters are fairly stable until a threshold, driven by climate change in our study, is crossed, after which there is a shift to a new steady state. Modern anthropogenic climate change may lead to similar transitions in state for soil biogeochemical systems and microbial communities in Arctic regions. Dataset Arctic Climate change permafrost Frontiers: Figshare Arctic |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Environmental Science Climate Science Environmental Impact Assessment Environmental Management Soil Biology Water Treatment Processes Environmental Engineering Design Environmental Engineering Modelling Environmental Technologies permafrost microbial community Pleistocene-Holocene climate change soil physicochemical parameters |
spellingShingle |
Environmental Science Climate Science Environmental Impact Assessment Environmental Management Soil Biology Water Treatment Processes Environmental Engineering Design Environmental Engineering Modelling Environmental Technologies permafrost microbial community Pleistocene-Holocene climate change soil physicochemical parameters Alireza Saidi-Mehrabad Patrick Neuberger Morteza Hajihosseini Duane Froese Brian D. Lanoil Data_Sheet_1_Permafrost Microbial Community Structure Changes Across the Pleistocene-Holocene Boundary.pdf |
topic_facet |
Environmental Science Climate Science Environmental Impact Assessment Environmental Management Soil Biology Water Treatment Processes Environmental Engineering Design Environmental Engineering Modelling Environmental Technologies permafrost microbial community Pleistocene-Holocene climate change soil physicochemical parameters |
description |
Despite the presence of well-documented changes in vegetation and faunal communities at the Pleistocene-Holocene transition, it is unclear whether similar shifts occurred in soil microbes. Recent studies do not show a clear connection between soil parameters and community structure, suggesting permafrost microbiome-climate studies may be unreliable. However, the majority of the permafrost microbial ecological studies have been performed only in either Holocene- or Pleistocene-aged sediments and not on permafrost that formed across the dramatic ecosystem reorganization at the Pleistocene-Holocene transition. In our study, we used permafrost recovered in proximity to the Pleistocene-Holocene transition subsampled under strict sterile conditions developed for ancient DNA studies. Our ordination analyses of microbial community composition based on 16S RNA genes and chemical composition of the soil samples resulted into two distinct clusters based on whether they were of late Pleistocene or Holocene age, while samples within an epoch were more similar than those across the boundary and did not result in age based separation. Between epochs, there was a statistically significant correlation between changes in OTU composition and soil chemical properties, but only Ca and Mn were correlated to OTU composition within Holocene aged samples; furthermore, no chemical parameters were correlated to OTU composition within Pleistocene aged samples. Thus, the results indicate that both soil chemical and microbial parameters are fairly stable until a threshold, driven by climate change in our study, is crossed, after which there is a shift to a new steady state. Modern anthropogenic climate change may lead to similar transitions in state for soil biogeochemical systems and microbial communities in Arctic regions. |
format |
Dataset |
author |
Alireza Saidi-Mehrabad Patrick Neuberger Morteza Hajihosseini Duane Froese Brian D. Lanoil |
author_facet |
Alireza Saidi-Mehrabad Patrick Neuberger Morteza Hajihosseini Duane Froese Brian D. Lanoil |
author_sort |
Alireza Saidi-Mehrabad |
title |
Data_Sheet_1_Permafrost Microbial Community Structure Changes Across the Pleistocene-Holocene Boundary.pdf |
title_short |
Data_Sheet_1_Permafrost Microbial Community Structure Changes Across the Pleistocene-Holocene Boundary.pdf |
title_full |
Data_Sheet_1_Permafrost Microbial Community Structure Changes Across the Pleistocene-Holocene Boundary.pdf |
title_fullStr |
Data_Sheet_1_Permafrost Microbial Community Structure Changes Across the Pleistocene-Holocene Boundary.pdf |
title_full_unstemmed |
Data_Sheet_1_Permafrost Microbial Community Structure Changes Across the Pleistocene-Holocene Boundary.pdf |
title_sort |
data_sheet_1_permafrost microbial community structure changes across the pleistocene-holocene boundary.pdf |
publishDate |
2020 |
url |
https://doi.org/10.3389/fenvs.2020.00133.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Permafrost_Microbial_Community_Structure_Changes_Across_the_Pleistocene-Holocene_Boundary_pdf/12825194 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change permafrost |
genre_facet |
Arctic Climate change permafrost |
op_relation |
doi:10.3389/fenvs.2020.00133.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Permafrost_Microbial_Community_Structure_Changes_Across_the_Pleistocene-Holocene_Boundary_pdf/12825194 |
op_doi |
https://doi.org/10.3389/fenvs.2020.00133.s001 |
_version_ |
1766344344754716672 |