A First Glimpse on Cold-Adapted PCB-Oxidizing Bacteria in Edmonson Point Lakes (Northern Victoria Land, Antarctica)
Antarctic freshwater ecosystems are especially vulnerable to human impacts. Polychlorobiphenyls (PCBs) are persistent organic pollutants that have a long lifetime in the environment. Despite their use having either been phased out or restricted, they are still found in nature, also in remote areas....
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2022
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ftdoajarticles:oai:doaj.org/article:0fb70844cfbb49bf9bc3cddfdfd011e6 2023-05-15T13:44:17+02:00 A First Glimpse on Cold-Adapted PCB-Oxidizing Bacteria in Edmonson Point Lakes (Northern Victoria Land, Antarctica) Maria Papale Angelina Lo Giudice Alessandro Ciro Rappazzo Maurizio Azzaro Carmen Rizzo 2022-01-01T00:00:00Z https://doi.org/10.3390/w14010109 https://doaj.org/article/0fb70844cfbb49bf9bc3cddfdfd011e6 EN eng MDPI AG https://www.mdpi.com/2073-4441/14/1/109 https://doaj.org/toc/2073-4441 doi:10.3390/w14010109 2073-4441 https://doaj.org/article/0fb70844cfbb49bf9bc3cddfdfd011e6 Water, Vol 14, Iss 109, p 109 (2022) polychlorobiphenyls cold-adapted bacteria bph A gene Antarctic coastal lakes Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 article 2022 ftdoajarticles https://doi.org/10.3390/w14010109 2022-12-31T16:31:25Z Antarctic freshwater ecosystems are especially vulnerable to human impacts. Polychlorobiphenyls (PCBs) are persistent organic pollutants that have a long lifetime in the environment. Despite their use having either been phased out or restricted, they are still found in nature, also in remote areas. Once in the environment, the fate of PCBs is strictly linked to bacteria which represent the first step in the transfer of toxic compounds to higher trophic levels. Data on PCB-oxidizing bacteria from polar areas are still scarce and fragmented. In this study, the occurrence of PCB-oxidizing cold-adapted bacteria was evaluated in water and sediment of four coastal lakes at Edmonson Point (Northern Victoria Land, Antarctica). After enrichment with biphenyl, 192 isolates were obtained with 57 of them that were able to grow in the presence of the PCB mixture Aroclor 1242, as the sole carbon source. The catabolic gene bph A, as a proxy for PCB degradation potential, was harbored by 37 isolates (out of 57), mainly affiliated to the genera Salinibacterium , Arthrobacter (among Actinobacteria) and Pusillimonas (among Betaproteobacteria). Obtained results enlarge our current knowledge on cold-adapted PCB-oxidizing bacteria and pose the basis for their potential application as a valuable eco-friendly tool for the recovery of PCB-contaminated cold sites. Article in Journal/Newspaper Antarc* Antarctic Antarctica Victoria Land Directory of Open Access Journals: DOAJ Articles Antarctic Edmonson Point ENVELOPE(165.133,165.133,-74.333,-74.333) Victoria Land Water 14 1 109 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
polychlorobiphenyls cold-adapted bacteria bph A gene Antarctic coastal lakes Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
spellingShingle |
polychlorobiphenyls cold-adapted bacteria bph A gene Antarctic coastal lakes Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Maria Papale Angelina Lo Giudice Alessandro Ciro Rappazzo Maurizio Azzaro Carmen Rizzo A First Glimpse on Cold-Adapted PCB-Oxidizing Bacteria in Edmonson Point Lakes (Northern Victoria Land, Antarctica) |
topic_facet |
polychlorobiphenyls cold-adapted bacteria bph A gene Antarctic coastal lakes Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
description |
Antarctic freshwater ecosystems are especially vulnerable to human impacts. Polychlorobiphenyls (PCBs) are persistent organic pollutants that have a long lifetime in the environment. Despite their use having either been phased out or restricted, they are still found in nature, also in remote areas. Once in the environment, the fate of PCBs is strictly linked to bacteria which represent the first step in the transfer of toxic compounds to higher trophic levels. Data on PCB-oxidizing bacteria from polar areas are still scarce and fragmented. In this study, the occurrence of PCB-oxidizing cold-adapted bacteria was evaluated in water and sediment of four coastal lakes at Edmonson Point (Northern Victoria Land, Antarctica). After enrichment with biphenyl, 192 isolates were obtained with 57 of them that were able to grow in the presence of the PCB mixture Aroclor 1242, as the sole carbon source. The catabolic gene bph A, as a proxy for PCB degradation potential, was harbored by 37 isolates (out of 57), mainly affiliated to the genera Salinibacterium , Arthrobacter (among Actinobacteria) and Pusillimonas (among Betaproteobacteria). Obtained results enlarge our current knowledge on cold-adapted PCB-oxidizing bacteria and pose the basis for their potential application as a valuable eco-friendly tool for the recovery of PCB-contaminated cold sites. |
format |
Article in Journal/Newspaper |
author |
Maria Papale Angelina Lo Giudice Alessandro Ciro Rappazzo Maurizio Azzaro Carmen Rizzo |
author_facet |
Maria Papale Angelina Lo Giudice Alessandro Ciro Rappazzo Maurizio Azzaro Carmen Rizzo |
author_sort |
Maria Papale |
title |
A First Glimpse on Cold-Adapted PCB-Oxidizing Bacteria in Edmonson Point Lakes (Northern Victoria Land, Antarctica) |
title_short |
A First Glimpse on Cold-Adapted PCB-Oxidizing Bacteria in Edmonson Point Lakes (Northern Victoria Land, Antarctica) |
title_full |
A First Glimpse on Cold-Adapted PCB-Oxidizing Bacteria in Edmonson Point Lakes (Northern Victoria Land, Antarctica) |
title_fullStr |
A First Glimpse on Cold-Adapted PCB-Oxidizing Bacteria in Edmonson Point Lakes (Northern Victoria Land, Antarctica) |
title_full_unstemmed |
A First Glimpse on Cold-Adapted PCB-Oxidizing Bacteria in Edmonson Point Lakes (Northern Victoria Land, Antarctica) |
title_sort |
first glimpse on cold-adapted pcb-oxidizing bacteria in edmonson point lakes (northern victoria land, antarctica) |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/w14010109 https://doaj.org/article/0fb70844cfbb49bf9bc3cddfdfd011e6 |
long_lat |
ENVELOPE(165.133,165.133,-74.333,-74.333) |
geographic |
Antarctic Edmonson Point Victoria Land |
geographic_facet |
Antarctic Edmonson Point Victoria Land |
genre |
Antarc* Antarctic Antarctica Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Victoria Land |
op_source |
Water, Vol 14, Iss 109, p 109 (2022) |
op_relation |
https://www.mdpi.com/2073-4441/14/1/109 https://doaj.org/toc/2073-4441 doi:10.3390/w14010109 2073-4441 https://doaj.org/article/0fb70844cfbb49bf9bc3cddfdfd011e6 |
op_doi |
https://doi.org/10.3390/w14010109 |
container_title |
Water |
container_volume |
14 |
container_issue |
1 |
container_start_page |
109 |
_version_ |
1766199759081570304 |