Biodiversity of UV-Resistant Bacteria in Antarctic Aquatic Environments
Antarctica is an untapped reservoir of bacterial communities, which are able to adapt to a huge variety of strategies to cope with extreme conditions and, therefore, are capable of producing potentially valuable compounds for biotechnological applications. In this study, 31 UV-resistant bacteria col...
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ftunivnapoliiris:oai:www.iris.unina.it:11588/955976 2024-06-23T07:46:32+00:00 Biodiversity of UV-Resistant Bacteria in Antarctic Aquatic Environments Coppola, Daniela Lauritano, Chiara Zazo, Gianluca Nuzzo, Genoveffa Fontana, Angelo Ianora, Adrianna Costantini, Maria Verde, Cinzia Giordano, Daniela Coppola, Daniela Lauritano, Chiara Zazo, Gianluca Nuzzo, Genoveffa Fontana, Angelo Ianora, Adrianna Costantini, Maria Verde, Cinzia Giordano, Daniela 2023 https://hdl.handle.net/11588/955976 https://doi.org/10.3390/jmse11050968 unknown info:eu-repo/semantics/altIdentifier/wos/WOS:000997027000001 volume:11 issue:5 firstpage:968 journal:JOURNAL OF MARINE SCIENCE AND ENGINEERING https://hdl.handle.net/11588/955976 doi:10.3390/jmse11050968 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85160922470 info:eu-repo/semantics/openAccess UV radiation UV-C assay UV-resistance marine bacterium lake microorganism pigment info:eu-repo/semantics/article 2023 ftunivnapoliiris https://doi.org/10.3390/jmse11050968 2024-06-10T14:58:45Z Antarctica is an untapped reservoir of bacterial communities, which are able to adapt to a huge variety of strategies to cope with extreme conditions and, therefore, are capable of producing potentially valuable compounds for biotechnological applications. In this study, 31 UV-resistant bacteria collected from different Antarctic aquatic environments (surface sea waters/ice and shallow lake sediments) were isolated by UV-C assay and subsequently identified. A phylogenetic analysis based on 16S rRNA gene sequence similarities showed that the isolates were affiliated with Proteobacteria, Actinobacteria and Firmicutes phyla, and they were clustered into 15 bacterial genera, 5 of which were Gram negative (Brevundimonas, Qipengyuania, Sphingorhabdus, Sphingobium, and Psychrobacter) and 10 of which were Gram positive (Staphylococcus, Bacillus, Mesobacillus, Kocuria, Gordonia, Rhodococcus, Micrococcus, Arthrobacter, Agrococcus, and Salinibacterium). Strains belonging to Proteobacteria and Actinobacteria phyla were the most abundant species in all environments. The genus Psychrobacter was dominant in all collection sites, whereas bacteria belonging to Actinobacteria appeared to be the most diverse and rich in terms of species among the investigated sites. Many of these isolates (20 of 31 isolates) were pigmented. Bacterial pigments, which are generally carotenoid-type compounds, are often involved in the protection of cells against the negative effects of UV radiation. For this reason, these pigments may help bacteria to successfully tolerate Antarctic extreme conditions of low temperature and harmful levels of UV radiation. Article in Journal/Newspaper Antarc* Antarctic Antarctica IRIS Università degli Studi di Napoli Federico II Antarctic Journal of Marine Science and Engineering 11 5 968 |
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IRIS Università degli Studi di Napoli Federico II |
op_collection_id |
ftunivnapoliiris |
language |
unknown |
topic |
UV radiation UV-C assay UV-resistance marine bacterium lake microorganism pigment |
spellingShingle |
UV radiation UV-C assay UV-resistance marine bacterium lake microorganism pigment Coppola, Daniela Lauritano, Chiara Zazo, Gianluca Nuzzo, Genoveffa Fontana, Angelo Ianora, Adrianna Costantini, Maria Verde, Cinzia Giordano, Daniela Biodiversity of UV-Resistant Bacteria in Antarctic Aquatic Environments |
topic_facet |
UV radiation UV-C assay UV-resistance marine bacterium lake microorganism pigment |
description |
Antarctica is an untapped reservoir of bacterial communities, which are able to adapt to a huge variety of strategies to cope with extreme conditions and, therefore, are capable of producing potentially valuable compounds for biotechnological applications. In this study, 31 UV-resistant bacteria collected from different Antarctic aquatic environments (surface sea waters/ice and shallow lake sediments) were isolated by UV-C assay and subsequently identified. A phylogenetic analysis based on 16S rRNA gene sequence similarities showed that the isolates were affiliated with Proteobacteria, Actinobacteria and Firmicutes phyla, and they were clustered into 15 bacterial genera, 5 of which were Gram negative (Brevundimonas, Qipengyuania, Sphingorhabdus, Sphingobium, and Psychrobacter) and 10 of which were Gram positive (Staphylococcus, Bacillus, Mesobacillus, Kocuria, Gordonia, Rhodococcus, Micrococcus, Arthrobacter, Agrococcus, and Salinibacterium). Strains belonging to Proteobacteria and Actinobacteria phyla were the most abundant species in all environments. The genus Psychrobacter was dominant in all collection sites, whereas bacteria belonging to Actinobacteria appeared to be the most diverse and rich in terms of species among the investigated sites. Many of these isolates (20 of 31 isolates) were pigmented. Bacterial pigments, which are generally carotenoid-type compounds, are often involved in the protection of cells against the negative effects of UV radiation. For this reason, these pigments may help bacteria to successfully tolerate Antarctic extreme conditions of low temperature and harmful levels of UV radiation. |
author2 |
Coppola, Daniela Lauritano, Chiara Zazo, Gianluca Nuzzo, Genoveffa Fontana, Angelo Ianora, Adrianna Costantini, Maria Verde, Cinzia Giordano, Daniela |
format |
Article in Journal/Newspaper |
author |
Coppola, Daniela Lauritano, Chiara Zazo, Gianluca Nuzzo, Genoveffa Fontana, Angelo Ianora, Adrianna Costantini, Maria Verde, Cinzia Giordano, Daniela |
author_facet |
Coppola, Daniela Lauritano, Chiara Zazo, Gianluca Nuzzo, Genoveffa Fontana, Angelo Ianora, Adrianna Costantini, Maria Verde, Cinzia Giordano, Daniela |
author_sort |
Coppola, Daniela |
title |
Biodiversity of UV-Resistant Bacteria in Antarctic Aquatic Environments |
title_short |
Biodiversity of UV-Resistant Bacteria in Antarctic Aquatic Environments |
title_full |
Biodiversity of UV-Resistant Bacteria in Antarctic Aquatic Environments |
title_fullStr |
Biodiversity of UV-Resistant Bacteria in Antarctic Aquatic Environments |
title_full_unstemmed |
Biodiversity of UV-Resistant Bacteria in Antarctic Aquatic Environments |
title_sort |
biodiversity of uv-resistant bacteria in antarctic aquatic environments |
publishDate |
2023 |
url |
https://hdl.handle.net/11588/955976 https://doi.org/10.3390/jmse11050968 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000997027000001 volume:11 issue:5 firstpage:968 journal:JOURNAL OF MARINE SCIENCE AND ENGINEERING https://hdl.handle.net/11588/955976 doi:10.3390/jmse11050968 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85160922470 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/jmse11050968 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
11 |
container_issue |
5 |
container_start_page |
968 |
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1802646551090167808 |