MIDAS: MIcrobial Diversity within the Vicinity of the Concordia Antarctic Station
The Concordia Research Station provides a unique location for preparatory activities for future human journey to Mars, to explore microbial diversity at subzero temperatures and monitor the dissemination of human-associated microorganisms within the pristine surrounding environment.
The present study was performed in the frame of the BacFinder project (European Space Agency, ESA AO-13-Concordia) with the aim to unravel the environmental- and human-associated microbial diversity in the surrounding of the Concordia Station. This is the first intensive and extensive surface snow sampling performed monthly over a two-year period at three distances (10, 500, and 1000 m) from the Concordia Station, and investigated by a high-throughput sequencing approach. Emphasis was laid on the relation between microbial presence and both seasonality and distance from the Base. Data suggested that if present the anthropogenic impact was below the detection limit of the employed DNA sequencing-based techniques. On the other hand, our study corroborated the use of DNA sequencing for revealing microbial presence in remote and hostile environments, with implications for Planetary Protections and for life-detection in astrobiology relevant targets.
Simple
- Date (Creation)
- 2021-10-01
- Identifier
- https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/fb76df45-1654-46c0-b827-b4252769fe0f
- Purpose
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A comprehensive analysis of the biodiversity in the snow/ice samples will be carried out by using molecular biology (cultivation-independent) techniques combined to bioinformatics tools. Attention will be given to the genetic diversity of bacteria, cyanobacteria and fungi in the surrounding areas of Concordia station.
The microbial community structure and genetic diversity will be characterized by amplification of ribosomal genes and metagenomics assay.
This approach will allow to : i) determine the microbial diversity outside the Concordia station, (ii) evaluate the influence on the microbial diversity of the environmental conditions, (iii) assess the anthropogenic impact from the Concordia station on the pristine Antarctic environment, and (iv) model the microbial dynamics.
Results will provide new insights into the Antarctic microbial biodiversity within the vicinity of the Concordia Station, and, by integrating the results with microclimatic data, will contribute to a better understanding of the structure and dynamics of the microbial communities with implications when monitoring and predicting climate change effects.
This proposal will contribute to the use of results of projects aimed at assessing the role of aerial dispersal in shaping the patterns of biodiversity in Antarctica. In addition, it will contribute to achieve an integrated knowledge of the microbial diversity in Antarctica, being complementary for investigated areas and colonized substrata to the proposed proposals MDV-MICRO (PI S. Ventura), AMunDsEN (PI L. Selbmann) e PermEco (PI M. Guglielmin).
Finally, given that Earth’s frozen polar regions are considered analogues of near-surface environments of Mars and of the Jupiter’s icy moon Europa, the results of this proposal will be relevant for astrobiology research programs aimed at searching life beyond Earth
- Status
- On going
- Maintenance and update frequency
- As needed
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SCAR Gazetteer of Antarctica
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Concordia Station
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GEMET - INSPIRE themes, version 1.0
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Soil
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GCMD - Science Keywords
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SNOW/ICE
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TERRESTRIAL ECOSYSTEMS
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- Keywords
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microbial diversity
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PNRA project
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MIDAS PNRA16_00101
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Research Organization
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Università di Roma Tor Vergata
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Università della Tuscia
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GCMD - Providers
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IT/PNRA
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- Unique resource identifier
- NUMERO SPEDIZIONE/SPEDIZIONI
- Association Type
- dependency
- Initiative Type
- Campaign
- Spatial representation type
- Text, table
- Denominator
- 1
- Metadata language
- English
- Character set
- UTF8
- Unique resource identifier
- WGS84
- Distribution format
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(
1
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(
1
)
- OnLine resource
- PNRA project ( WWW:LINK-1.0-http--link )
- Hierarchy level
- Dataset
Domain consistency
Conformance result
- Date (Publication)
- 2010-12-08
- Explanation
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This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services
- Pass
- Yes
- Statement
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GENERAL INFORMATION ABOUT THE DATA ORIGIN AND HOW IT GETS TRANSFORMED ALONG THE WAY FROM THE INSTRUMENT TO THE DATABASE.
- File identifier
- 6870b671-42f4-4692-9ce2-6084e10575ec XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2024-10-14T10:20:39
- Metadata standard name
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ISO 19139
- Metadata standard version
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1.0