Understanding the microbiome diversity through a combination of remote sensing and close-range field observation techniques in the Sør Rondane Mountains, East Antarctica
The sparse ice-free regions of Antarctica are the coldest arid deserts on Earth. Yet, ice-free soils harbor substantial and diverse microbial communities that can vary significantly between the regions and the micro-climatic conditions. The factors responsible for driving the microbial diversity and...
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ftorbi:oai:orbi.ulg.ac.be:2268/255273 2024-04-21T07:50:36+00:00 Understanding the microbiome diversity through a combination of remote sensing and close-range field observation techniques in the Sør Rondane Mountains, East Antarctica Savaglia, Valentina Lambrechts, Sam Durieu, Benoit Vanhellemont, Quinten Tytgat, Bjorn Verleyen, Elie Willems, Anne Vyverman, wim Wilmotte, Annick Biological Sciences from Molecules to Systems - inBioS- Centre for Protein Engineering 2020-08 https://orbi.uliege.be/handle/2268/255273 https://orbi.uliege.be/bitstream/2268/255273/1/AbstractSession30EnvironmentDiversity.pdf en eng ttps://az659834.vo.msecnd.net/eventsairseasiaprod/production-leishman-public/ac8fd6abf83f4fb0b43de3bab2bc8080, number 918 https://az659834.vo.msecnd.net/eventsairseasiaprod/production-leishman-public/ac8fd6abf83f4fb0b43de3bab2bc8080 https://orbi.uliege.be/handle/2268/255273 info:hdl:2268/255273 https://orbi.uliege.be/bitstream/2268/255273/1/AbstractSession30EnvironmentDiversity.pdf open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess SCAR 2020 Open Science Conference Online, Hobart, Australia [AU], du 3 au 7 août 2020 cyanobacteria Antarctic Biodiversity remote sensing environmental factors Ecology Life sciences Microbiology Environmental sciences & ecology Sciences du vivant Microbiologie Sciences de l’environnement & écologie conference paper not in proceedings http://purl.org/coar/resource_type/c_18cp info:eu-repo/semantics/conferencePaper 2020 ftorbi 2024-03-27T14:51:08Z The sparse ice-free regions of Antarctica are the coldest arid deserts on Earth. Yet, ice-free soils harbor substantial and diverse microbial communities that can vary significantly between the regions and the micro-climatic conditions. The factors responsible for driving the microbial diversity and community structure in inland nunataks of East Antarctica, like the Sør Rondane Mountains, are still poorly understood. Within the BELSPO MICROBIAN project, three sampling campaigns took place in a 70 km radius around the Belgian Princess Elisabeth Station during the Austral summers of 2018, 2019 and 2020, resulting in the biggest sampling effort for microbial analysis in the region. Samples ranged from different kind of barren bedrock to substrates covered by biofilms and well-developed biological soil crusts consisting of lichens, mosses and cyanobacterial/microalgal mats. In this study, long-term microenvironmental monitoring data show that temperature and soil humidity regimes vary with the elevation, slope, aspect, wind exposure and daily irradiance regimes of the surveyed nunataks. Bacterial and eukaryotic diversity were assessed by amplicon sequencing targeting 16S and 18S regions of the rRNA genes with the Illumina MiSeq platform (2x300 bp). Preliminary multivariate analysis indicate that habitat characteristics derived from remote sensing and data loggers give important insights about the distribution of bacteria, cyanobacteria and eukaryotes in these unique environments. Further analyses are ongoing on chemical characterization of the soils and on potential biotic interactions to better understand the terrestrial microbial ecology of Antarctic ice-free regions. MICROBIAN Conference Object Antarc* Antarctic Antarctica East Antarctica University of Liège: ORBi (Open Repository and Bibliography) |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
cyanobacteria Antarctic Biodiversity remote sensing environmental factors Ecology Life sciences Microbiology Environmental sciences & ecology Sciences du vivant Microbiologie Sciences de l’environnement & écologie |
spellingShingle |
cyanobacteria Antarctic Biodiversity remote sensing environmental factors Ecology Life sciences Microbiology Environmental sciences & ecology Sciences du vivant Microbiologie Sciences de l’environnement & écologie Savaglia, Valentina Lambrechts, Sam Durieu, Benoit Vanhellemont, Quinten Tytgat, Bjorn Verleyen, Elie Willems, Anne Vyverman, wim Wilmotte, Annick Understanding the microbiome diversity through a combination of remote sensing and close-range field observation techniques in the Sør Rondane Mountains, East Antarctica |
topic_facet |
cyanobacteria Antarctic Biodiversity remote sensing environmental factors Ecology Life sciences Microbiology Environmental sciences & ecology Sciences du vivant Microbiologie Sciences de l’environnement & écologie |
description |
The sparse ice-free regions of Antarctica are the coldest arid deserts on Earth. Yet, ice-free soils harbor substantial and diverse microbial communities that can vary significantly between the regions and the micro-climatic conditions. The factors responsible for driving the microbial diversity and community structure in inland nunataks of East Antarctica, like the Sør Rondane Mountains, are still poorly understood. Within the BELSPO MICROBIAN project, three sampling campaigns took place in a 70 km radius around the Belgian Princess Elisabeth Station during the Austral summers of 2018, 2019 and 2020, resulting in the biggest sampling effort for microbial analysis in the region. Samples ranged from different kind of barren bedrock to substrates covered by biofilms and well-developed biological soil crusts consisting of lichens, mosses and cyanobacterial/microalgal mats. In this study, long-term microenvironmental monitoring data show that temperature and soil humidity regimes vary with the elevation, slope, aspect, wind exposure and daily irradiance regimes of the surveyed nunataks. Bacterial and eukaryotic diversity were assessed by amplicon sequencing targeting 16S and 18S regions of the rRNA genes with the Illumina MiSeq platform (2x300 bp). Preliminary multivariate analysis indicate that habitat characteristics derived from remote sensing and data loggers give important insights about the distribution of bacteria, cyanobacteria and eukaryotes in these unique environments. Further analyses are ongoing on chemical characterization of the soils and on potential biotic interactions to better understand the terrestrial microbial ecology of Antarctic ice-free regions. MICROBIAN |
author2 |
Biological Sciences from Molecules to Systems - inBioS- Centre for Protein Engineering |
format |
Conference Object |
author |
Savaglia, Valentina Lambrechts, Sam Durieu, Benoit Vanhellemont, Quinten Tytgat, Bjorn Verleyen, Elie Willems, Anne Vyverman, wim Wilmotte, Annick |
author_facet |
Savaglia, Valentina Lambrechts, Sam Durieu, Benoit Vanhellemont, Quinten Tytgat, Bjorn Verleyen, Elie Willems, Anne Vyverman, wim Wilmotte, Annick |
author_sort |
Savaglia, Valentina |
title |
Understanding the microbiome diversity through a combination of remote sensing and close-range field observation techniques in the Sør Rondane Mountains, East Antarctica |
title_short |
Understanding the microbiome diversity through a combination of remote sensing and close-range field observation techniques in the Sør Rondane Mountains, East Antarctica |
title_full |
Understanding the microbiome diversity through a combination of remote sensing and close-range field observation techniques in the Sør Rondane Mountains, East Antarctica |
title_fullStr |
Understanding the microbiome diversity through a combination of remote sensing and close-range field observation techniques in the Sør Rondane Mountains, East Antarctica |
title_full_unstemmed |
Understanding the microbiome diversity through a combination of remote sensing and close-range field observation techniques in the Sør Rondane Mountains, East Antarctica |
title_sort |
understanding the microbiome diversity through a combination of remote sensing and close-range field observation techniques in the sør rondane mountains, east antarctica |
publishDate |
2020 |
url |
https://orbi.uliege.be/handle/2268/255273 https://orbi.uliege.be/bitstream/2268/255273/1/AbstractSession30EnvironmentDiversity.pdf |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_source |
SCAR 2020 Open Science Conference Online, Hobart, Australia [AU], du 3 au 7 août 2020 |
op_relation |
ttps://az659834.vo.msecnd.net/eventsairseasiaprod/production-leishman-public/ac8fd6abf83f4fb0b43de3bab2bc8080, number 918 https://az659834.vo.msecnd.net/eventsairseasiaprod/production-leishman-public/ac8fd6abf83f4fb0b43de3bab2bc8080 https://orbi.uliege.be/handle/2268/255273 info:hdl:2268/255273 https://orbi.uliege.be/bitstream/2268/255273/1/AbstractSession30EnvironmentDiversity.pdf |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
_version_ |
1796934264143478784 |