• CNR Antarctic Data Center
  •   Search
  •   Map
  •   Sign in

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

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
principalInvestigator
  University of Rome Tor Vergata - Daniela Billi
pointOfContact
  University of Tuscia - Laura Selbmann
Maintenance and update frequency
As needed

SCAR Gazetteer of Antarctica

  • Concordia Station

GEMET - INSPIRE themes, version 1.0

  • Soil

GCMD - Science Keywords

  • SNOW/ICE

  • TERRESTRIAL ECOSYSTEMS

Keywords
  • microbial diversity

PNRA project

  • MIDAS PNRA16_00101

Research Organization

  • Università di Roma Tor Vergata

  • Università della Tuscia

GCMD - Providers

  • IT/PNRA

Use limitation
Creative-Commons CC BY-NC-SA 4.0
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
N
S
E
W
thumbnail


Unique resource identifier
WGS84
Distribution format
  • ( 1 )

OnLine resource
PNRA project ( WWW:LINK-1.0-http--link )
Hierarchy level
Dataset

Domain consistency

Conformance result

Date (Publication)
2010-12-08
Explanation

This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services

Pass
Yes
Statement

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
2025-05-12T14:21:08
Metadata standard name

ISO 19139

Metadata standard version

1.0

principalInvestigator
  University of Rome Tor Vergata - Daniela Billi
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GCMD - Providers
IT/PNRA
GCMD - Science Keywords
SNOW/ICE TERRESTRIAL ECOSYSTEMS
GEMET - INSPIRE themes, version 1.0
Soil
PNRA project
MIDAS PNRA16_00101
Research Organization
Università della Tuscia Università di Roma Tor Vergata
SCAR Gazetteer of Antarctica
Concordia Station

Provided by

logo

Share on social sites

Access to the portal
Read here the full details and access to the data.

Associated resources

Not available


  •   About
  •   Github
  •