Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions
The Pasvik River experiences chemical, physical, and biological stressors due to the direct discharges of domestic sewage from settlements located within the catchment and runoff from smelter and mine wastes. Sediments, as a natural repository of organic matter and associated contaminants, are of gl...
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Online Access: | http://hdl.handle.net/11568/1143458 https://doi.org/10.3390/microorganisms10051022 https://www.mdpi.com/2076-2607/10/5/1022 |
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ftunivpisairis:oai:arpi.unipi.it:11568/1143458 2024-04-21T08:10:01+00:00 Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions Papale, Maria Rizzo, Carmen Giannarelli, Stefania Caruso, Gabriella Amalfitano, Stefano Aspholm, Paul Eric Maimone, Giovanna Miserocchi, Stefano Rappazzo, Alessandro Ciro Lo Giudice, Angelina Azzaro, Maurizio Papale, Maria Rizzo, Carmen Giannarelli, Stefania Caruso, Gabriella Amalfitano, Stefano Aspholm, Paul Eric Maimone, Giovanna Miserocchi, Stefano Rappazzo, Alessandro Ciro Lo Giudice, Angelina Azzaro, Maurizio 2022 ELETTRONICO http://hdl.handle.net/11568/1143458 https://doi.org/10.3390/microorganisms10051022 https://www.mdpi.com/2076-2607/10/5/1022 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000802435000001 volume:10 issue:5 numberofpages:26 journal:MICROORGANISMS http://hdl.handle.net/11568/1143458 doi:10.3390/microorganisms10051022 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85130163032 https://www.mdpi.com/2076-2607/10/5/1022 info:eu-repo/semantics/openAccess anthropogenic contamination microbial community bacterial diversity Arctic river info:eu-repo/semantics/article 2022 ftunivpisairis https://doi.org/10.3390/microorganisms10051022 2024-03-28T01:44:14Z The Pasvik River experiences chemical, physical, and biological stressors due to the direct discharges of domestic sewage from settlements located within the catchment and runoff from smelter and mine wastes. Sediments, as a natural repository of organic matter and associated contaminants, are of global concern for the possible release of pollutants in the water column, with detrimental effects on aquatic organisms. The present study was aimed at characterizing the riverine benthic microbial community and evaluating its ecological role in relation to the contamination level. Sediments were sampled along the river during two contrasting environmental periods (i.e., beginning and ongoing phases of ice melting). Microbial enzymatic activities, cell abundance, and morphological traits were evaluated, along with the phylogenetic community composition. Amplified 16S rRNA genes from bacteria were sequenced using a next-generation approach. Sediments were also analyzed for a variety of chemical features, namely particulate material characteristics and concentration of polychlorobiphenyls, polycyclic aromatic hydrocarbons, and pesticides. Riverine and brackish sites did not affect the microbial community in terms of main phylogenetic diversity (at phylum level), morphometry, enzymatic activities, and abundance. Instead, bacterial diversity in the river sediments appeared to be influenced by the micro-niche conditions, with differences in the relative abundance of selected taxa. In particular, our results highlighted the occurrence of bacterial taxa directly involved in the C, Fe, and N cycles, as well as in the degradation of organic pollutants and toxic compounds. Article in Journal/Newspaper Pasvik ARPI - Archivio della Ricerca dell'Università di Pisa Microorganisms 10 5 1022 |
institution |
Open Polar |
collection |
ARPI - Archivio della Ricerca dell'Università di Pisa |
op_collection_id |
ftunivpisairis |
language |
English |
topic |
anthropogenic contamination microbial community bacterial diversity Arctic river |
spellingShingle |
anthropogenic contamination microbial community bacterial diversity Arctic river Papale, Maria Rizzo, Carmen Giannarelli, Stefania Caruso, Gabriella Amalfitano, Stefano Aspholm, Paul Eric Maimone, Giovanna Miserocchi, Stefano Rappazzo, Alessandro Ciro Lo Giudice, Angelina Azzaro, Maurizio Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
topic_facet |
anthropogenic contamination microbial community bacterial diversity Arctic river |
description |
The Pasvik River experiences chemical, physical, and biological stressors due to the direct discharges of domestic sewage from settlements located within the catchment and runoff from smelter and mine wastes. Sediments, as a natural repository of organic matter and associated contaminants, are of global concern for the possible release of pollutants in the water column, with detrimental effects on aquatic organisms. The present study was aimed at characterizing the riverine benthic microbial community and evaluating its ecological role in relation to the contamination level. Sediments were sampled along the river during two contrasting environmental periods (i.e., beginning and ongoing phases of ice melting). Microbial enzymatic activities, cell abundance, and morphological traits were evaluated, along with the phylogenetic community composition. Amplified 16S rRNA genes from bacteria were sequenced using a next-generation approach. Sediments were also analyzed for a variety of chemical features, namely particulate material characteristics and concentration of polychlorobiphenyls, polycyclic aromatic hydrocarbons, and pesticides. Riverine and brackish sites did not affect the microbial community in terms of main phylogenetic diversity (at phylum level), morphometry, enzymatic activities, and abundance. Instead, bacterial diversity in the river sediments appeared to be influenced by the micro-niche conditions, with differences in the relative abundance of selected taxa. In particular, our results highlighted the occurrence of bacterial taxa directly involved in the C, Fe, and N cycles, as well as in the degradation of organic pollutants and toxic compounds. |
author2 |
Papale, Maria Rizzo, Carmen Giannarelli, Stefania Caruso, Gabriella Amalfitano, Stefano Aspholm, Paul Eric Maimone, Giovanna Miserocchi, Stefano Rappazzo, Alessandro Ciro Lo Giudice, Angelina Azzaro, Maurizio |
format |
Article in Journal/Newspaper |
author |
Papale, Maria Rizzo, Carmen Giannarelli, Stefania Caruso, Gabriella Amalfitano, Stefano Aspholm, Paul Eric Maimone, Giovanna Miserocchi, Stefano Rappazzo, Alessandro Ciro Lo Giudice, Angelina Azzaro, Maurizio |
author_facet |
Papale, Maria Rizzo, Carmen Giannarelli, Stefania Caruso, Gabriella Amalfitano, Stefano Aspholm, Paul Eric Maimone, Giovanna Miserocchi, Stefano Rappazzo, Alessandro Ciro Lo Giudice, Angelina Azzaro, Maurizio |
author_sort |
Papale, Maria |
title |
Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
title_short |
Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
title_full |
Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
title_fullStr |
Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
title_full_unstemmed |
Benthic Microbial Communities in a Seasonally Ice-Covered Sub-Arctic River (Pasvik River, Norway) Are Shaped by Site-Specific Environmental Conditions |
title_sort |
benthic microbial communities in a seasonally ice-covered sub-arctic river (pasvik river, norway) are shaped by site-specific environmental conditions |
publishDate |
2022 |
url |
http://hdl.handle.net/11568/1143458 https://doi.org/10.3390/microorganisms10051022 https://www.mdpi.com/2076-2607/10/5/1022 |
genre |
Pasvik |
genre_facet |
Pasvik |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000802435000001 volume:10 issue:5 numberofpages:26 journal:MICROORGANISMS http://hdl.handle.net/11568/1143458 doi:10.3390/microorganisms10051022 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85130163032 https://www.mdpi.com/2076-2607/10/5/1022 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/microorganisms10051022 |
container_title |
Microorganisms |
container_volume |
10 |
container_issue |
5 |
container_start_page |
1022 |
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1796951306943856640 |