Data_Sheet_1_A Taxon-Wise Insight Into Rock Weathering and Nitrogen Fixation Functional Profiles of Proglacial Systems.docx
The Arctic environment is particularly affected by global warming, and a clear trend of the ice retreat is observed worldwide. In proglacial systems, the newly exposed terrain represents different environmental and nutrient conditions compared to later soil stages. Therefore, proglacial systems show...
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ftfrontimediafig:oai:figshare.com:article/16626961 2023-05-15T15:02:12+02:00 Data_Sheet_1_A Taxon-Wise Insight Into Rock Weathering and Nitrogen Fixation Functional Profiles of Proglacial Systems.docx Gilda Varliero Alexandre M. Anesio Gary L. A. Barker 2021-09-16T05:05:26Z https://doi.org/10.3389/fmicb.2021.627437.s001 https://figshare.com/articles/dataset/Data_Sheet_1_A_Taxon-Wise_Insight_Into_Rock_Weathering_and_Nitrogen_Fixation_Functional_Profiles_of_Proglacial_Systems_docx/16626961 unknown doi:10.3389/fmicb.2021.627437.s001 https://figshare.com/articles/dataset/Data_Sheet_1_A_Taxon-Wise_Insight_Into_Rock_Weathering_and_Nitrogen_Fixation_Functional_Profiles_of_Proglacial_Systems_docx/16626961 CC BY 4.0 CC-BY Microbiology Microbial Genetics Microbial Ecology Mycology forefield soil microbial succession rock weathering nitrogen fixation functional profiles microbial diversity Dataset 2021 ftfrontimediafig https://doi.org/10.3389/fmicb.2021.627437.s001 2021-09-22T23:02:54Z The Arctic environment is particularly affected by global warming, and a clear trend of the ice retreat is observed worldwide. In proglacial systems, the newly exposed terrain represents different environmental and nutrient conditions compared to later soil stages. Therefore, proglacial systems show several environmental gradients along the soil succession where microorganisms are active protagonists of the soil and carbon pool formation through nitrogen fixation and rock weathering. We studied the microbial succession of three Arctic proglacial systems located in Svalbard (Midtre Lovénbreen), Sweden (Storglaciären), and Greenland (foreland close to Kangerlussuaq). We analyzed 65 whole shotgun metagenomic soil samples for a total of more than 400 Gb of sequencing data. Microbial succession showed common trends typical of proglacial systems with increasing diversity observed along the forefield chronosequence. Microbial trends were explained by the distance from the ice edge in the Midtre Lovénbreen and Storglaciären forefields and by total nitrogen (TN) and total organic carbon (TOC) in the Greenland proglacial system. Furthermore, we focused specifically on genes associated with nitrogen fixation and biotic rock weathering processes, such as nitrogenase genes, obcA genes, and genes involved in cyanide and siderophore synthesis and transport. Whereas we confirmed the presence of these genes in known nitrogen-fixing and/or rock weathering organisms (e.g., Nostoc, Burkholderia), in this study, we also detected organisms that, even if often found in soil and proglacial systems, have never been related to nitrogen-fixing or rock weathering processes before (e.g., Fimbriiglobus, Streptomyces). The different genera showed different gene trends within and among the studied systems, indicating a community constituted by a plurality of organisms involved in nitrogen fixation and biotic rock weathering, and where the latter were driven by different organisms at different soil succession stages. Dataset Arctic Global warming Greenland Kangerlussuaq Svalbard Frontiers: Figshare Arctic Svalbard Greenland Kangerlussuaq ENVELOPE(-55.633,-55.633,72.633,72.633) Storglaciären ENVELOPE(18.560,18.560,67.904,67.904) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Microbiology Microbial Genetics Microbial Ecology Mycology forefield soil microbial succession rock weathering nitrogen fixation functional profiles microbial diversity |
spellingShingle |
Microbiology Microbial Genetics Microbial Ecology Mycology forefield soil microbial succession rock weathering nitrogen fixation functional profiles microbial diversity Gilda Varliero Alexandre M. Anesio Gary L. A. Barker Data_Sheet_1_A Taxon-Wise Insight Into Rock Weathering and Nitrogen Fixation Functional Profiles of Proglacial Systems.docx |
topic_facet |
Microbiology Microbial Genetics Microbial Ecology Mycology forefield soil microbial succession rock weathering nitrogen fixation functional profiles microbial diversity |
description |
The Arctic environment is particularly affected by global warming, and a clear trend of the ice retreat is observed worldwide. In proglacial systems, the newly exposed terrain represents different environmental and nutrient conditions compared to later soil stages. Therefore, proglacial systems show several environmental gradients along the soil succession where microorganisms are active protagonists of the soil and carbon pool formation through nitrogen fixation and rock weathering. We studied the microbial succession of three Arctic proglacial systems located in Svalbard (Midtre Lovénbreen), Sweden (Storglaciären), and Greenland (foreland close to Kangerlussuaq). We analyzed 65 whole shotgun metagenomic soil samples for a total of more than 400 Gb of sequencing data. Microbial succession showed common trends typical of proglacial systems with increasing diversity observed along the forefield chronosequence. Microbial trends were explained by the distance from the ice edge in the Midtre Lovénbreen and Storglaciären forefields and by total nitrogen (TN) and total organic carbon (TOC) in the Greenland proglacial system. Furthermore, we focused specifically on genes associated with nitrogen fixation and biotic rock weathering processes, such as nitrogenase genes, obcA genes, and genes involved in cyanide and siderophore synthesis and transport. Whereas we confirmed the presence of these genes in known nitrogen-fixing and/or rock weathering organisms (e.g., Nostoc, Burkholderia), in this study, we also detected organisms that, even if often found in soil and proglacial systems, have never been related to nitrogen-fixing or rock weathering processes before (e.g., Fimbriiglobus, Streptomyces). The different genera showed different gene trends within and among the studied systems, indicating a community constituted by a plurality of organisms involved in nitrogen fixation and biotic rock weathering, and where the latter were driven by different organisms at different soil succession stages. |
format |
Dataset |
author |
Gilda Varliero Alexandre M. Anesio Gary L. A. Barker |
author_facet |
Gilda Varliero Alexandre M. Anesio Gary L. A. Barker |
author_sort |
Gilda Varliero |
title |
Data_Sheet_1_A Taxon-Wise Insight Into Rock Weathering and Nitrogen Fixation Functional Profiles of Proglacial Systems.docx |
title_short |
Data_Sheet_1_A Taxon-Wise Insight Into Rock Weathering and Nitrogen Fixation Functional Profiles of Proglacial Systems.docx |
title_full |
Data_Sheet_1_A Taxon-Wise Insight Into Rock Weathering and Nitrogen Fixation Functional Profiles of Proglacial Systems.docx |
title_fullStr |
Data_Sheet_1_A Taxon-Wise Insight Into Rock Weathering and Nitrogen Fixation Functional Profiles of Proglacial Systems.docx |
title_full_unstemmed |
Data_Sheet_1_A Taxon-Wise Insight Into Rock Weathering and Nitrogen Fixation Functional Profiles of Proglacial Systems.docx |
title_sort |
data_sheet_1_a taxon-wise insight into rock weathering and nitrogen fixation functional profiles of proglacial systems.docx |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmicb.2021.627437.s001 https://figshare.com/articles/dataset/Data_Sheet_1_A_Taxon-Wise_Insight_Into_Rock_Weathering_and_Nitrogen_Fixation_Functional_Profiles_of_Proglacial_Systems_docx/16626961 |
long_lat |
ENVELOPE(-55.633,-55.633,72.633,72.633) ENVELOPE(18.560,18.560,67.904,67.904) |
geographic |
Arctic Svalbard Greenland Kangerlussuaq Storglaciären |
geographic_facet |
Arctic Svalbard Greenland Kangerlussuaq Storglaciären |
genre |
Arctic Global warming Greenland Kangerlussuaq Svalbard |
genre_facet |
Arctic Global warming Greenland Kangerlussuaq Svalbard |
op_relation |
doi:10.3389/fmicb.2021.627437.s001 https://figshare.com/articles/dataset/Data_Sheet_1_A_Taxon-Wise_Insight_Into_Rock_Weathering_and_Nitrogen_Fixation_Functional_Profiles_of_Proglacial_Systems_docx/16626961 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2021.627437.s001 |
_version_ |
1766334177238581248 |