Cultivable Bacterial Communities in Brines from Perennially Ice-Covered and Pristine Antarctic Lakes: Ecological and Biotechnological Implications
The diversity and biotechnological potentialities of bacterial isolates from brines of three Antarctic lakes of the Northern Victoria Land (namely Boulder Clay and Tarn Flat areas) were first explored. Cultivable bacterial communities were analysed mainly in terms of bacterial response to contaminan...
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ftpubmed:oai:pubmedcentral.nih.gov:7355736 2023-05-15T13:51:33+02:00 Cultivable Bacterial Communities in Brines from Perennially Ice-Covered and Pristine Antarctic Lakes: Ecological and Biotechnological Implications Rizzo, Carmen Conte, Antonella Azzaro, Maurizio Papale, Maria Rappazzo, Alessandro C. Battistel, Dario Roman, Marco Lo Giudice, Angelina Guglielmin, Mauro 2020-05-29 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7355736/ http://www.ncbi.nlm.nih.gov/pubmed/32486118 https://doi.org/10.3390/microorganisms8060819 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7355736/ http://www.ncbi.nlm.nih.gov/pubmed/32486118 http://dx.doi.org/10.3390/microorganisms8060819 © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). CC-BY Microorganisms Article Text 2020 ftpubmed https://doi.org/10.3390/microorganisms8060819 2020-07-26T00:25:45Z The diversity and biotechnological potentialities of bacterial isolates from brines of three Antarctic lakes of the Northern Victoria Land (namely Boulder Clay and Tarn Flat areas) were first explored. Cultivable bacterial communities were analysed mainly in terms of bacterial response to contaminants (i.e., antibiotics and heavy metals) and oxidation of contaminants (i.e., aliphatic and aromatic hydrocarbons and polychlorobiphenyls). Moreover, the biosynthesis of biomolecules (antibiotics, extracellular polymeric substances and enzymes) with applications for human health and environmental protection was assayed. A total of 74 and 141 isolates were retrieved from Boulder Clay and Tarn Flat brines, respectively. Based on 16S rRNA gene sequence similarities, bacterial isolates represented three phyla, namely Proteobacteria (i.e., Gamma- and Alphaproteobacteria), Bacteroidetes and Actinobacteria, with differences encountered among brines. At genus level, Rhodobacter, Pseudomonas, Psychrobacter and Leifsonia members were dominant. Results obtained from this study on the physiological and enzymatic features of cold-adapted isolates from Antarctic lake brines provide interesting prospects for possible applications in the biotechnological field through future targeted surveys. Finally, findings on contaminant occurrence and bacterial response suggest that bacteria might be used as bioindicators for tracking human footprints in these remote polar areas. Text Antarc* Antarctic Victoria Land PubMed Central (PMC) Antarctic Tarn Flat ENVELOPE(162.500,162.500,-75.067,-75.067) Victoria Land Microorganisms 8 6 819 |
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Article Rizzo, Carmen Conte, Antonella Azzaro, Maurizio Papale, Maria Rappazzo, Alessandro C. Battistel, Dario Roman, Marco Lo Giudice, Angelina Guglielmin, Mauro Cultivable Bacterial Communities in Brines from Perennially Ice-Covered and Pristine Antarctic Lakes: Ecological and Biotechnological Implications |
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Article |
description |
The diversity and biotechnological potentialities of bacterial isolates from brines of three Antarctic lakes of the Northern Victoria Land (namely Boulder Clay and Tarn Flat areas) were first explored. Cultivable bacterial communities were analysed mainly in terms of bacterial response to contaminants (i.e., antibiotics and heavy metals) and oxidation of contaminants (i.e., aliphatic and aromatic hydrocarbons and polychlorobiphenyls). Moreover, the biosynthesis of biomolecules (antibiotics, extracellular polymeric substances and enzymes) with applications for human health and environmental protection was assayed. A total of 74 and 141 isolates were retrieved from Boulder Clay and Tarn Flat brines, respectively. Based on 16S rRNA gene sequence similarities, bacterial isolates represented three phyla, namely Proteobacteria (i.e., Gamma- and Alphaproteobacteria), Bacteroidetes and Actinobacteria, with differences encountered among brines. At genus level, Rhodobacter, Pseudomonas, Psychrobacter and Leifsonia members were dominant. Results obtained from this study on the physiological and enzymatic features of cold-adapted isolates from Antarctic lake brines provide interesting prospects for possible applications in the biotechnological field through future targeted surveys. Finally, findings on contaminant occurrence and bacterial response suggest that bacteria might be used as bioindicators for tracking human footprints in these remote polar areas. |
format |
Text |
author |
Rizzo, Carmen Conte, Antonella Azzaro, Maurizio Papale, Maria Rappazzo, Alessandro C. Battistel, Dario Roman, Marco Lo Giudice, Angelina Guglielmin, Mauro |
author_facet |
Rizzo, Carmen Conte, Antonella Azzaro, Maurizio Papale, Maria Rappazzo, Alessandro C. Battistel, Dario Roman, Marco Lo Giudice, Angelina Guglielmin, Mauro |
author_sort |
Rizzo, Carmen |
title |
Cultivable Bacterial Communities in Brines from Perennially Ice-Covered and Pristine Antarctic Lakes: Ecological and Biotechnological Implications |
title_short |
Cultivable Bacterial Communities in Brines from Perennially Ice-Covered and Pristine Antarctic Lakes: Ecological and Biotechnological Implications |
title_full |
Cultivable Bacterial Communities in Brines from Perennially Ice-Covered and Pristine Antarctic Lakes: Ecological and Biotechnological Implications |
title_fullStr |
Cultivable Bacterial Communities in Brines from Perennially Ice-Covered and Pristine Antarctic Lakes: Ecological and Biotechnological Implications |
title_full_unstemmed |
Cultivable Bacterial Communities in Brines from Perennially Ice-Covered and Pristine Antarctic Lakes: Ecological and Biotechnological Implications |
title_sort |
cultivable bacterial communities in brines from perennially ice-covered and pristine antarctic lakes: ecological and biotechnological implications |
publisher |
MDPI |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7355736/ http://www.ncbi.nlm.nih.gov/pubmed/32486118 https://doi.org/10.3390/microorganisms8060819 |
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ENVELOPE(162.500,162.500,-75.067,-75.067) |
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Antarctic Tarn Flat Victoria Land |
geographic_facet |
Antarctic Tarn Flat Victoria Land |
genre |
Antarc* Antarctic Victoria Land |
genre_facet |
Antarc* Antarctic Victoria Land |
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Microorganisms |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7355736/ http://www.ncbi.nlm.nih.gov/pubmed/32486118 http://dx.doi.org/10.3390/microorganisms8060819 |
op_rights |
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
op_doi |
https://doi.org/10.3390/microorganisms8060819 |
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Microorganisms |
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8 |
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6 |
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819 |
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1766255465027600384 |