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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ftdoajarticles:oai:doaj.org/article:fe2091d2f7254914bd33284ae54625f5 2023-05-15T13:46:10+02:00 Cultivable Bacterial Communities in Brines from Perennially Ice-Covered and Pristine Antarctic Lakes: Ecological and Biotechnological Implications Carmen Rizzo Antonella Conte Maurizio Azzaro Maria Papale Alessandro C. Rappazzo Dario Battistel Marco Roman Angelina Lo Giudice Mauro Guglielmin 2020-05-01T00:00:00Z https://doi.org/10.3390/microorganisms8060819 https://doaj.org/article/fe2091d2f7254914bd33284ae54625f5 EN eng MDPI AG https://www.mdpi.com/2076-2607/8/6/819 https://doaj.org/toc/2076-2607 doi:10.3390/microorganisms8060819 2076-2607 https://doaj.org/article/fe2091d2f7254914bd33284ae54625f5 Microorganisms, Vol 8, Iss 819, p 819 (2020) brine lenses Antarctic cultivable bacteria contaminants bioprospecting Biology (General) QH301-705.5 article 2020 ftdoajarticles https://doi.org/10.3390/microorganisms8060819 2022-12-31T05:44:35Z 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. Article in Journal/Newspaper Antarc* Antarctic Victoria Land Directory of Open Access Journals: DOAJ Articles Antarctic Tarn Flat ENVELOPE(162.500,162.500,-75.067,-75.067) Victoria Land Microorganisms 8 6 819 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
brine lenses Antarctic cultivable bacteria contaminants bioprospecting Biology (General) QH301-705.5 |
spellingShingle |
brine lenses Antarctic cultivable bacteria contaminants bioprospecting Biology (General) QH301-705.5 Carmen Rizzo Antonella Conte Maurizio Azzaro Maria Papale Alessandro C. Rappazzo Dario Battistel Marco Roman Angelina Lo Giudice Mauro Guglielmin Cultivable Bacterial Communities in Brines from Perennially Ice-Covered and Pristine Antarctic Lakes: Ecological and Biotechnological Implications |
topic_facet |
brine lenses Antarctic cultivable bacteria contaminants bioprospecting Biology (General) QH301-705.5 |
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 |
Article in Journal/Newspaper |
author |
Carmen Rizzo Antonella Conte Maurizio Azzaro Maria Papale Alessandro C. Rappazzo Dario Battistel Marco Roman Angelina Lo Giudice Mauro Guglielmin |
author_facet |
Carmen Rizzo Antonella Conte Maurizio Azzaro Maria Papale Alessandro C. Rappazzo Dario Battistel Marco Roman Angelina Lo Giudice Mauro Guglielmin |
author_sort |
Carmen Rizzo |
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 AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/microorganisms8060819 https://doaj.org/article/fe2091d2f7254914bd33284ae54625f5 |
long_lat |
ENVELOPE(162.500,162.500,-75.067,-75.067) |
geographic |
Antarctic Tarn Flat Victoria Land |
geographic_facet |
Antarctic Tarn Flat Victoria Land |
genre |
Antarc* Antarctic Victoria Land |
genre_facet |
Antarc* Antarctic Victoria Land |
op_source |
Microorganisms, Vol 8, Iss 819, p 819 (2020) |
op_relation |
https://www.mdpi.com/2076-2607/8/6/819 https://doaj.org/toc/2076-2607 doi:10.3390/microorganisms8060819 2076-2607 https://doaj.org/article/fe2091d2f7254914bd33284ae54625f5 |
op_doi |
https://doi.org/10.3390/microorganisms8060819 |
container_title |
Microorganisms |
container_volume |
8 |
container_issue |
6 |
container_start_page |
819 |
_version_ |
1766237947161477120 |