fe0842d8-4254-4527-b476-46198230f60f Alessandro Cosenza CNR - ISP alessandro.cosenza@cnr.it 2025-05-12T14:21:06 ISO 19139 1.0 WGS84 Abundances and metabolism in the Northern Victoria Land and Upper Victoria Valley 2021-10-01 https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/fe0842d8-4254-4527-b476-46198230f60f Permafrost hosts a potentially large pool of microorganisms, which is supposed to be the only life forms known to have retained viability over geological time. Thawing of the permafrost renews their physiological activity and exposes ancient life to modern ecosystems (Gilichinsky et al, 2008). The adaptation mechanisms of microorganisms, at species or population level, make them susceptible to extreme environmental conditions. The survival of microorganisms in permafrost raises the question of what constitutes the limit for microbial life (Steven et al., 2006; Wagner 2008). Aim of work is devoted to test the hypothesis that Continental Antarctic permafrost harboured prokaryotic communities rich in viable cells and metabolic potentials. This study focused on three permafrost environments of the Northern Victoria Land: Boulder Clay (Continental Antarctica) and one more sample collected in the Dry Valleys (Upper Victoria Valley). The aims of this paper were to establish 1) how much prokaryotic cells inhabited the studied permafrost, 2) how much were alive and respiring, 3) which metabolic activities they could potentially carry out, and 4) the differences in the microbial behaviour, if there were, on a layer gradient. Maurizio Azzaro CNR - ISP maurizio.azzaro@cnr.it https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/fe0842d8-4254-4527-b476-46198230f60f/attachments/cartina.jpg Antarctica SCAR Gazetteer of Antarctica 2021-01-01 geonetwork.thesaurus.external.theme.scar_gazetteer_multi Coordinate reference systems GEMET - INSPIRE themes, version 1.0 2008-01-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme AQUATIC ECOSYSTEMS GCMD - Science Keywords 2015-01-01 geonetwork.thesaurus.external.theme.gcmd-sciencekeywords IT/PNRA GCMD - Providers 2023-07-24 geonetwork.thesaurus.external.theme.thesaurus CNR - Consiglio nazionale delle ricerche Research Organization 2024-03-18 geonetwork.thesaurus.external.theme.Research_Organization PNRA project 2024-03-18 geonetwork.thesaurus.external.theme.PNRAproject   Creative-Commons CC BY-NC-SA 4.0         CODICE PROGETTO PNRA NUMERO_SPEDIZIONE 1 biota 164.00 164.002 -74.0005 -74.00 COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services true General information about the data origin and how it gets transformed along the way from the instrument to the database.