Investigating the biodiversity of microbial communities in the McMurdo Dry Valleys, Antarctica: an inter-valley comparison study.
Extreme environments provide a unique source of often highly adapted and tolerant organisms. Research on organisms in these habitats has led to the discovery of novel and useful compounds and may assist in understanding the impact of global change on biodiversity. The Dry Valleys of Eastern Antarcti...
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ftawi:oai:epic.awi.de:22365 2024-09-09T19:06:30+00:00 Investigating the biodiversity of microbial communities in the McMurdo Dry Valleys, Antarctica: an inter-valley comparison study. Barbier, Béatrice Lee, C. K. Bottos, E. M. McDonald, I. R. Cary, S. C. 2010 https://epic.awi.de/id/eprint/22365/ https://hdl.handle.net/10013/epic.34668 unknown Barbier, B. , Lee, C. K. , Bottos, E. M. , McDonald, I. R. and Cary, S. C. (2010) Investigating the biodiversity of microbial communities in the McMurdo Dry Valleys, Antarctica: an inter-valley comparison study. , Jahrestagung der Vereinigung für Allgemeine und Angewandte Mikrobiologie (VAAM)März 2010. . hdl:10013/epic.34668 EPIC3Jahrestagung der Vereinigung für Allgemeine und Angewandte Mikrobiologie (VAAM)März 2010., 28 Conference notRev 2010 ftawi 2024-06-24T04:01:54Z Extreme environments provide a unique source of often highly adapted and tolerant organisms. Research on organisms in these habitats has led to the discovery of novel and useful compounds and may assist in understanding the impact of global change on biodiversity. The Dry Valleys of Eastern Antarctica are vast, ice-free regions believed to be the coldest, driest desert on Earth. Despite these harsh conditions, there is an increasing amount of evidence demonstrating that the soil ecosystems of the Dry Valleys sustain a wide diversity of microorganisms. The research presented is an inter-valley comparison study which aimed to scrutinize microbial communities and environmental factors driving their distribution in the Dry Valleys. Automated ribosomal intergenic spacer analysis (ARISA) was used to provide a snapshot of bacterial and cyanobacterial communities living in the mineral sands in Miers Valley, Beacon Valley, Upper Wright Valley and at Battleship Promontory. Rigorous analysis of physico-chemical differences between the soils of these four valleys was undertaken in hope to understand the environmental parameters driving the distribution and biodiversity of microbial communities present. Multivariate statistical analysis and ordination of ARISA and physico-chemical data revealed that bacterial communities from each valley form distinctive clusters. Conversely, cyanobacterial communities showed less diversity and a more even distribution between valleys. Furthermore, 454 pyrosequencing using bar-coded primers was undertaken in order to identify the majority of species representatives in each of the four valleys. Conference Object Antarc* Antarctica McMurdo Dry Valleys Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Battleship ENVELOPE(-160.917,-160.917,-76.917,-76.917) Battleship Promontory ENVELOPE(160.917,160.917,-76.917,-76.917) Beacon Valley ENVELOPE(160.650,160.650,-77.817,-77.817) McMurdo Dry Valleys Miers ENVELOPE(163.850,163.850,-78.100,-78.100) Miers Valley ENVELOPE(164.200,164.200,-78.100,-78.100) Wright Valley ENVELOPE(161.833,161.833,-77.517,-77.517) |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Extreme environments provide a unique source of often highly adapted and tolerant organisms. Research on organisms in these habitats has led to the discovery of novel and useful compounds and may assist in understanding the impact of global change on biodiversity. The Dry Valleys of Eastern Antarctica are vast, ice-free regions believed to be the coldest, driest desert on Earth. Despite these harsh conditions, there is an increasing amount of evidence demonstrating that the soil ecosystems of the Dry Valleys sustain a wide diversity of microorganisms. The research presented is an inter-valley comparison study which aimed to scrutinize microbial communities and environmental factors driving their distribution in the Dry Valleys. Automated ribosomal intergenic spacer analysis (ARISA) was used to provide a snapshot of bacterial and cyanobacterial communities living in the mineral sands in Miers Valley, Beacon Valley, Upper Wright Valley and at Battleship Promontory. Rigorous analysis of physico-chemical differences between the soils of these four valleys was undertaken in hope to understand the environmental parameters driving the distribution and biodiversity of microbial communities present. Multivariate statistical analysis and ordination of ARISA and physico-chemical data revealed that bacterial communities from each valley form distinctive clusters. Conversely, cyanobacterial communities showed less diversity and a more even distribution between valleys. Furthermore, 454 pyrosequencing using bar-coded primers was undertaken in order to identify the majority of species representatives in each of the four valleys. |
format |
Conference Object |
author |
Barbier, Béatrice Lee, C. K. Bottos, E. M. McDonald, I. R. Cary, S. C. |
spellingShingle |
Barbier, Béatrice Lee, C. K. Bottos, E. M. McDonald, I. R. Cary, S. C. Investigating the biodiversity of microbial communities in the McMurdo Dry Valleys, Antarctica: an inter-valley comparison study. |
author_facet |
Barbier, Béatrice Lee, C. K. Bottos, E. M. McDonald, I. R. Cary, S. C. |
author_sort |
Barbier, Béatrice |
title |
Investigating the biodiversity of microbial communities in the McMurdo Dry Valleys, Antarctica: an inter-valley comparison study. |
title_short |
Investigating the biodiversity of microbial communities in the McMurdo Dry Valleys, Antarctica: an inter-valley comparison study. |
title_full |
Investigating the biodiversity of microbial communities in the McMurdo Dry Valleys, Antarctica: an inter-valley comparison study. |
title_fullStr |
Investigating the biodiversity of microbial communities in the McMurdo Dry Valleys, Antarctica: an inter-valley comparison study. |
title_full_unstemmed |
Investigating the biodiversity of microbial communities in the McMurdo Dry Valleys, Antarctica: an inter-valley comparison study. |
title_sort |
investigating the biodiversity of microbial communities in the mcmurdo dry valleys, antarctica: an inter-valley comparison study. |
publishDate |
2010 |
url |
https://epic.awi.de/id/eprint/22365/ https://hdl.handle.net/10013/epic.34668 |
long_lat |
ENVELOPE(-160.917,-160.917,-76.917,-76.917) ENVELOPE(160.917,160.917,-76.917,-76.917) ENVELOPE(160.650,160.650,-77.817,-77.817) ENVELOPE(163.850,163.850,-78.100,-78.100) ENVELOPE(164.200,164.200,-78.100,-78.100) ENVELOPE(161.833,161.833,-77.517,-77.517) |
geographic |
Battleship Battleship Promontory Beacon Valley McMurdo Dry Valleys Miers Miers Valley Wright Valley |
geographic_facet |
Battleship Battleship Promontory Beacon Valley McMurdo Dry Valleys Miers Miers Valley Wright Valley |
genre |
Antarc* Antarctica McMurdo Dry Valleys |
genre_facet |
Antarc* Antarctica McMurdo Dry Valleys |
op_source |
EPIC3Jahrestagung der Vereinigung für Allgemeine und Angewandte Mikrobiologie (VAAM)März 2010., 28 |
op_relation |
Barbier, B. , Lee, C. K. , Bottos, E. M. , McDonald, I. R. and Cary, S. C. (2010) Investigating the biodiversity of microbial communities in the McMurdo Dry Valleys, Antarctica: an inter-valley comparison study. , Jahrestagung der Vereinigung für Allgemeine und Angewandte Mikrobiologie (VAAM)März 2010. . hdl:10013/epic.34668 |
_version_ |
1809820555965104128 |