Bedrock and biotic influence on on community composition of soils from the Sør Rondane Mountains, East Antarctica
Antarctica is a continent of extremes. Low availability of liquid water and nutrients, extreme low temperatures and high levels of radiation exert high selective pressures on organisms. Consequently, most life forms are microbial. Estimations indicate that as little as 1-3 % of the continental surfa...
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ftunivgent:oai:archive.ugent.be:6912253 2023-06-11T04:06:23+02:00 Bedrock and biotic influence on on community composition of soils from the Sør Rondane Mountains, East Antarctica Tytgat, Bjorn Verleyen, Elie D'hondt, Sofie Clercx, Pia Van Ranst, Eric Roberts, Stephen Wilmotte, Annick Vyverman, Wim Willems, Anne 2015 https://biblio.ugent.be/publication/6912253 http://hdl.handle.net/1854/LU-6912253 eng eng https://biblio.ugent.be/publication/6912253 http://hdl.handle.net/1854/LU-6912253 European Microbiologists, 6th Congress, Abstracts Biology and Life Sciences Antarctica prokaryotes terrestrial biodiversity Illumina conference info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion 2015 ftunivgent 2023-05-10T22:39:54Z Antarctica is a continent of extremes. Low availability of liquid water and nutrients, extreme low temperatures and high levels of radiation exert high selective pressures on organisms. Consequently, most life forms are microbial. Estimations indicate that as little as 1-3 % of the continental surface represents ice-free regions. Relatively few biological studies focus on terrestrial samples which most often originate from the McMurdo dry valleys that make out the largest contiguous ice-free area. Mountain tops protruding through the ice sheets (nunataks) are less frequently studied although they might function as havens and reservoirs for terrestrial organisms. Geological data shows the presence of different kinds of bedrock in the Sør Rondane mountains (Queen Maud Land, East Antarctica). Patches of macroscopic organisms (lichens, mosses and arthropods) are scattered throughout these ice-free islands, indicating a high amount of variability in the presence of organic matter, and hence nutrients for microbial life. Here we present the results of a large scale sampling effort in the eastern Sør Rondane Mountains of such ice-free regions near the Belgian Princess Elisabeth station. Samples were subjected to both a genetic fingerprinting technique (ARISA) and second generation sequencing (Illumina MiSeq 300PE). We examined the composition and distribution of bacterial communities in these refugia, and investigated the possible impact of environmental parameters on these community compositions. Conference Object Antarc* Antarctica East Antarctica McMurdo Dry Valleys Queen Maud Land Ghent University Academic Bibliography East Antarctica McMurdo Dry Valleys Queen Maud Land ENVELOPE(12.000,12.000,-72.500,-72.500) Sør-Rondane ENVELOPE(25.000,25.000,-72.000,-72.000) Sør Rondane Mountains ENVELOPE(25.000,25.000,-72.000,-72.000) |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences Antarctica prokaryotes terrestrial biodiversity Illumina |
spellingShingle |
Biology and Life Sciences Antarctica prokaryotes terrestrial biodiversity Illumina Tytgat, Bjorn Verleyen, Elie D'hondt, Sofie Clercx, Pia Van Ranst, Eric Roberts, Stephen Wilmotte, Annick Vyverman, Wim Willems, Anne Bedrock and biotic influence on on community composition of soils from the Sør Rondane Mountains, East Antarctica |
topic_facet |
Biology and Life Sciences Antarctica prokaryotes terrestrial biodiversity Illumina |
description |
Antarctica is a continent of extremes. Low availability of liquid water and nutrients, extreme low temperatures and high levels of radiation exert high selective pressures on organisms. Consequently, most life forms are microbial. Estimations indicate that as little as 1-3 % of the continental surface represents ice-free regions. Relatively few biological studies focus on terrestrial samples which most often originate from the McMurdo dry valleys that make out the largest contiguous ice-free area. Mountain tops protruding through the ice sheets (nunataks) are less frequently studied although they might function as havens and reservoirs for terrestrial organisms. Geological data shows the presence of different kinds of bedrock in the Sør Rondane mountains (Queen Maud Land, East Antarctica). Patches of macroscopic organisms (lichens, mosses and arthropods) are scattered throughout these ice-free islands, indicating a high amount of variability in the presence of organic matter, and hence nutrients for microbial life. Here we present the results of a large scale sampling effort in the eastern Sør Rondane Mountains of such ice-free regions near the Belgian Princess Elisabeth station. Samples were subjected to both a genetic fingerprinting technique (ARISA) and second generation sequencing (Illumina MiSeq 300PE). We examined the composition and distribution of bacterial communities in these refugia, and investigated the possible impact of environmental parameters on these community compositions. |
format |
Conference Object |
author |
Tytgat, Bjorn Verleyen, Elie D'hondt, Sofie Clercx, Pia Van Ranst, Eric Roberts, Stephen Wilmotte, Annick Vyverman, Wim Willems, Anne |
author_facet |
Tytgat, Bjorn Verleyen, Elie D'hondt, Sofie Clercx, Pia Van Ranst, Eric Roberts, Stephen Wilmotte, Annick Vyverman, Wim Willems, Anne |
author_sort |
Tytgat, Bjorn |
title |
Bedrock and biotic influence on on community composition of soils from the Sør Rondane Mountains, East Antarctica |
title_short |
Bedrock and biotic influence on on community composition of soils from the Sør Rondane Mountains, East Antarctica |
title_full |
Bedrock and biotic influence on on community composition of soils from the Sør Rondane Mountains, East Antarctica |
title_fullStr |
Bedrock and biotic influence on on community composition of soils from the Sør Rondane Mountains, East Antarctica |
title_full_unstemmed |
Bedrock and biotic influence on on community composition of soils from the Sør Rondane Mountains, East Antarctica |
title_sort |
bedrock and biotic influence on on community composition of soils from the sør rondane mountains, east antarctica |
publishDate |
2015 |
url |
https://biblio.ugent.be/publication/6912253 http://hdl.handle.net/1854/LU-6912253 |
long_lat |
ENVELOPE(12.000,12.000,-72.500,-72.500) ENVELOPE(25.000,25.000,-72.000,-72.000) ENVELOPE(25.000,25.000,-72.000,-72.000) |
geographic |
East Antarctica McMurdo Dry Valleys Queen Maud Land Sør-Rondane Sør Rondane Mountains |
geographic_facet |
East Antarctica McMurdo Dry Valleys Queen Maud Land Sør-Rondane Sør Rondane Mountains |
genre |
Antarc* Antarctica East Antarctica McMurdo Dry Valleys Queen Maud Land |
genre_facet |
Antarc* Antarctica East Antarctica McMurdo Dry Valleys Queen Maud Land |
op_source |
European Microbiologists, 6th Congress, Abstracts |
op_relation |
https://biblio.ugent.be/publication/6912253 http://hdl.handle.net/1854/LU-6912253 |
_version_ |
1768378324726317056 |