Endolithic microbial composition in Helliwell Hills, a newly investigated Mars-like area in Antarctica
The diversity and composition of Antarctic cryptoendolithic microbial communities in the Mars-analogue site of Helliwell Hills (Northern Victoria Land, Continental Antarctica) are investigated, for the first time, applying both culture-dependent and high-throughput sequencing approaches. The study i...
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ftunivtuscia:oai:dspace.unitus.it:2067/45929 2023-05-15T13:52:30+02:00 Endolithic microbial composition in Helliwell Hills, a newly investigated Mars-like area in Antarctica Coleine, Claudia Biagioli, Federico de Vera, Jean Pierre Onofri, Silvano Selbmann, Laura 2021 http://hdl.handle.net/2067/45929 https://doi.org/10.1111/1462-2920.15419 https://api.elsevier.com/content/abstract/scopus_id/85100991349 en eng ENVIRONMENTAL MICROBIOLOGY 4002-4016 4016 23 7 1462-2912 http://hdl.handle.net/2067/45929 doi:10.1111/1462-2920.15419 33538384 2-s2.0-85100991349 https://api.elsevier.com/content/abstract/scopus_id/85100991349 restricted article 2021 ftunivtuscia https://doi.org/10.1111/1462-2920.15419 2022-05-01T15:20:32Z The diversity and composition of Antarctic cryptoendolithic microbial communities in the Mars-analogue site of Helliwell Hills (Northern Victoria Land, Continental Antarctica) are investigated, for the first time, applying both culture-dependent and high-throughput sequencing approaches. The study includes all the domains of the tree of life: Eukaryotes, Bacteria and Archaea to give a complete overview of biodiversity and community structure. Furthermore, to explore the geographic distribution of endoliths throughout the Victoria Land (Continental Antarctica), we compared the fungal and bacterial community composition and structure of endolithically colonized rocks, collected in >30 sites in 10 years of Italian Antarctic Expeditions. Compared with the fungi and other eukaryotes, the prokaryotic communities were richer in species, more diverse and highly heterogeneous. Despite the diverse community compositions, shared populations were found and were dominant in all sites. Local diversification was observed and included prokaryotes as members of Alphaproteobacteria and Crenarchaeota (Archaea), the last detected for the first time in these cryptoendolithic communities. Few eukaryotes, namely lichen-forming fungal species as Lecidella grenii, were detected in Helliwell Hills only. These findings suggest that geographic distance and isolation in these remote areas may promote the establishment of peculiar locally diversified microorganisms. sì Article in Journal/Newspaper Antarc* Antarctic Antarctica Victoria Land Università degli studi della Tuscia: Unitus DSpace Antarctic Victoria Land Helliwell Hills ENVELOPE(161.200,161.200,-71.833,-71.833) Environmental Microbiology 23 7 4002 4016 |
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Università degli studi della Tuscia: Unitus DSpace |
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ftunivtuscia |
language |
English |
description |
The diversity and composition of Antarctic cryptoendolithic microbial communities in the Mars-analogue site of Helliwell Hills (Northern Victoria Land, Continental Antarctica) are investigated, for the first time, applying both culture-dependent and high-throughput sequencing approaches. The study includes all the domains of the tree of life: Eukaryotes, Bacteria and Archaea to give a complete overview of biodiversity and community structure. Furthermore, to explore the geographic distribution of endoliths throughout the Victoria Land (Continental Antarctica), we compared the fungal and bacterial community composition and structure of endolithically colonized rocks, collected in >30 sites in 10 years of Italian Antarctic Expeditions. Compared with the fungi and other eukaryotes, the prokaryotic communities were richer in species, more diverse and highly heterogeneous. Despite the diverse community compositions, shared populations were found and were dominant in all sites. Local diversification was observed and included prokaryotes as members of Alphaproteobacteria and Crenarchaeota (Archaea), the last detected for the first time in these cryptoendolithic communities. Few eukaryotes, namely lichen-forming fungal species as Lecidella grenii, were detected in Helliwell Hills only. These findings suggest that geographic distance and isolation in these remote areas may promote the establishment of peculiar locally diversified microorganisms. sì |
format |
Article in Journal/Newspaper |
author |
Coleine, Claudia Biagioli, Federico de Vera, Jean Pierre Onofri, Silvano Selbmann, Laura |
spellingShingle |
Coleine, Claudia Biagioli, Federico de Vera, Jean Pierre Onofri, Silvano Selbmann, Laura Endolithic microbial composition in Helliwell Hills, a newly investigated Mars-like area in Antarctica |
author_facet |
Coleine, Claudia Biagioli, Federico de Vera, Jean Pierre Onofri, Silvano Selbmann, Laura |
author_sort |
Coleine, Claudia |
title |
Endolithic microbial composition in Helliwell Hills, a newly investigated Mars-like area in Antarctica |
title_short |
Endolithic microbial composition in Helliwell Hills, a newly investigated Mars-like area in Antarctica |
title_full |
Endolithic microbial composition in Helliwell Hills, a newly investigated Mars-like area in Antarctica |
title_fullStr |
Endolithic microbial composition in Helliwell Hills, a newly investigated Mars-like area in Antarctica |
title_full_unstemmed |
Endolithic microbial composition in Helliwell Hills, a newly investigated Mars-like area in Antarctica |
title_sort |
endolithic microbial composition in helliwell hills, a newly investigated mars-like area in antarctica |
publishDate |
2021 |
url |
http://hdl.handle.net/2067/45929 https://doi.org/10.1111/1462-2920.15419 https://api.elsevier.com/content/abstract/scopus_id/85100991349 |
long_lat |
ENVELOPE(161.200,161.200,-71.833,-71.833) |
geographic |
Antarctic Victoria Land Helliwell Hills |
geographic_facet |
Antarctic Victoria Land Helliwell Hills |
genre |
Antarc* Antarctic Antarctica Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Victoria Land |
op_relation |
ENVIRONMENTAL MICROBIOLOGY 4002-4016 4016 23 7 1462-2912 http://hdl.handle.net/2067/45929 doi:10.1111/1462-2920.15419 33538384 2-s2.0-85100991349 https://api.elsevier.com/content/abstract/scopus_id/85100991349 |
op_rights |
restricted |
op_doi |
https://doi.org/10.1111/1462-2920.15419 |
container_title |
Environmental Microbiology |
container_volume |
23 |
container_issue |
7 |
container_start_page |
4002 |
op_container_end_page |
4016 |
_version_ |
1766256825849610240 |