Effect of soil depth on the structure of bacterial composition in the active layer at five geologically distinct sites on James Ross and Vega Islands in Antarctica
Microbial communities in the active layer play a crucial role in the biogeochemical cycles of Antarctic pristine ecosystems. Here, 16S rRNA gene sequencing was used to investigate bacterial communities in active layer of five different geological sites related to the compositional variation of the g...
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ftmasarykis:oai:is.muni.cz:2382857 2024-04-28T08:02:48+00:00 Effect of soil depth on the structure of bacterial composition in the active layer at five geologically distinct sites on James Ross and Vega Islands in Antarctica Kosečková Micenková Lenka Sedláček Ivo Hrbáček Filip Švec Pavel Nývlt Daniel Pantůček Roman Mašlaňová Ivana 2024 9 https://is.muni.cz/publication/2382857 https://doi.org/10.1007/s00300-024-03230-3 eng eng Springer-Verlag GmbH https://is.muni.cz/publication/2382857 info:eu-repo/semantics/openAccess Polar Biology Antarctica Active layer James Ross Island Vega Island Microbiome Geology info:eu-repo/semantics/article J 2024 ftmasarykis https://doi.org/10.1007/s00300-024-03230-3 2024-04-04T16:57:50Z Microbial communities in the active layer play a crucial role in the biogeochemical cycles of Antarctic pristine ecosystems. Here, 16S rRNA gene sequencing was used to investigate bacterial communities in active layer of five different geological sites related to the compositional variation of the geological bedrock, including Neogene volcanic or Cretaceous rocks and or marine sediments areas of distinct elevation. Local variations in the thickness of the active layer (50–80 cm) were observed on the Ulu Peninsula, James Ross Island, and the southwest coast of Vega Island, Antarctica during sampling in 2019. High bacterial diversity was detected in all sampling sites. Significant site effects on bacterial composition with increased Chloroflexota and decreased Flavobacteriaceae were only observed between the highest elevation Johnson Mesa 2 plateau and coastal areas. The overall effect of the depth was reflected by the increased of e.g., Cyanobacteria, Propionibacterium, Staphylococcus in the upper surface and Chloroflexota, Acidobacteriota, Actinomycetota at depths below 30 cm. The huge number of unassigned bacteria indicated a potential source of new bacterial species and their ecological role in this extreme environment. For the first time, we showed that the effect of depth on bacterial composition was more significant than the effect of geological bedrock from these previously unexplored regions. Article in Journal/Newspaper Antarc* Antarctic Antarctica James Ross Island Polar Biology Ross Island Vega Island Masaryk University: Open Services of Information System Polar Biology |
institution |
Open Polar |
collection |
Masaryk University: Open Services of Information System |
op_collection_id |
ftmasarykis |
language |
English |
topic |
Antarctica Active layer James Ross Island Vega Island Microbiome Geology |
spellingShingle |
Antarctica Active layer James Ross Island Vega Island Microbiome Geology Kosečková Micenková Lenka Sedláček Ivo Hrbáček Filip Švec Pavel Nývlt Daniel Pantůček Roman Mašlaňová Ivana Effect of soil depth on the structure of bacterial composition in the active layer at five geologically distinct sites on James Ross and Vega Islands in Antarctica |
topic_facet |
Antarctica Active layer James Ross Island Vega Island Microbiome Geology |
description |
Microbial communities in the active layer play a crucial role in the biogeochemical cycles of Antarctic pristine ecosystems. Here, 16S rRNA gene sequencing was used to investigate bacterial communities in active layer of five different geological sites related to the compositional variation of the geological bedrock, including Neogene volcanic or Cretaceous rocks and or marine sediments areas of distinct elevation. Local variations in the thickness of the active layer (50–80 cm) were observed on the Ulu Peninsula, James Ross Island, and the southwest coast of Vega Island, Antarctica during sampling in 2019. High bacterial diversity was detected in all sampling sites. Significant site effects on bacterial composition with increased Chloroflexota and decreased Flavobacteriaceae were only observed between the highest elevation Johnson Mesa 2 plateau and coastal areas. The overall effect of the depth was reflected by the increased of e.g., Cyanobacteria, Propionibacterium, Staphylococcus in the upper surface and Chloroflexota, Acidobacteriota, Actinomycetota at depths below 30 cm. The huge number of unassigned bacteria indicated a potential source of new bacterial species and their ecological role in this extreme environment. For the first time, we showed that the effect of depth on bacterial composition was more significant than the effect of geological bedrock from these previously unexplored regions. |
format |
Article in Journal/Newspaper |
author |
Kosečková Micenková Lenka Sedláček Ivo Hrbáček Filip Švec Pavel Nývlt Daniel Pantůček Roman Mašlaňová Ivana |
author_facet |
Kosečková Micenková Lenka Sedláček Ivo Hrbáček Filip Švec Pavel Nývlt Daniel Pantůček Roman Mašlaňová Ivana |
author_sort |
Kosečková Micenková Lenka |
title |
Effect of soil depth on the structure of bacterial composition in the active layer at five geologically distinct sites on James Ross and Vega Islands in Antarctica |
title_short |
Effect of soil depth on the structure of bacterial composition in the active layer at five geologically distinct sites on James Ross and Vega Islands in Antarctica |
title_full |
Effect of soil depth on the structure of bacterial composition in the active layer at five geologically distinct sites on James Ross and Vega Islands in Antarctica |
title_fullStr |
Effect of soil depth on the structure of bacterial composition in the active layer at five geologically distinct sites on James Ross and Vega Islands in Antarctica |
title_full_unstemmed |
Effect of soil depth on the structure of bacterial composition in the active layer at five geologically distinct sites on James Ross and Vega Islands in Antarctica |
title_sort |
effect of soil depth on the structure of bacterial composition in the active layer at five geologically distinct sites on james ross and vega islands in antarctica |
publisher |
Springer-Verlag GmbH |
publishDate |
2024 |
url |
https://is.muni.cz/publication/2382857 https://doi.org/10.1007/s00300-024-03230-3 |
genre |
Antarc* Antarctic Antarctica James Ross Island Polar Biology Ross Island Vega Island |
genre_facet |
Antarc* Antarctic Antarctica James Ross Island Polar Biology Ross Island Vega Island |
op_source |
Polar Biology |
op_relation |
https://is.muni.cz/publication/2382857 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00300-024-03230-3 |
container_title |
Polar Biology |
_version_ |
1797574058470014976 |