Escherichia coli out in the cold:dissemination of human-derived bacteria into the Antarctic microbiome
Discharge of untreated sewage into Antarctic environments presents a risk of introducing non-native microorganisms, but until now, adverse consequences have not been conclusively identified. Here we show that sewage disposal introduces human derived Escherichia coli carrying mobile genetic elements...
Published in: | Environmental Pollution |
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2016
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Online Access: | https://researchers.mq.edu.au/en/publications/427c9963-e7b1-48c2-9c0d-eca7c367d264 https://doi.org/10.1016/j.envpol.2016.04.013 http://www.scopus.com/inward/record.url?scp=84966339577&partnerID=8YFLogxK |
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/427c9963-e7b1-48c2-9c0d-eca7c367d264 2024-09-15T17:47:52+00:00 Escherichia coli out in the cold:dissemination of human-derived bacteria into the Antarctic microbiome Power, Michelle L. Samuel, Angelingifta Smith, James J. Stark, Jonathon S. Gillings, Michael R. Gordon, David M. 2016-08-01 https://researchers.mq.edu.au/en/publications/427c9963-e7b1-48c2-9c0d-eca7c367d264 https://doi.org/10.1016/j.envpol.2016.04.013 http://www.scopus.com/inward/record.url?scp=84966339577&partnerID=8YFLogxK eng eng info:eu-repo/semantics/closedAccess Power , M L , Samuel , A , Smith , J J , Stark , J S , Gillings , M R & Gordon , D M 2016 , ' Escherichia coli out in the cold : dissemination of human-derived bacteria into the Antarctic microbiome ' , Environmental Pollution , vol. 215 , pp. 58-65 . https://doi.org/10.1016/j.envpol.2016.04.013 Class 1 integron Human impacts Sewage ST131 ST95 Wildlife article 2016 ftmacquarieunicr https://doi.org/10.1016/j.envpol.2016.04.013 2024-07-31T23:49:40Z Discharge of untreated sewage into Antarctic environments presents a risk of introducing non-native microorganisms, but until now, adverse consequences have not been conclusively identified. Here we show that sewage disposal introduces human derived Escherichia coli carrying mobile genetic elements and virulence traits with the potential to affect the diversity and evolution of native Antarctic microbial communities. We compared E. coli recovered from environmental and animal sources in Antarctica to a reference collection of E. coli from humans and non-Antarctic animals. The distribution of phylogenetic groups and frequency of 11 virulence factors amongst the Antarctic isolates were characteristic of E. coli strains more commonly associated with humans. The rapidly emerging E. coli ST131 and ST95 clones were found amongst the Antarctic isolates, and ST95 was the predominant E. coli recovered from Weddell seals. Class 1 integrons were found in 15% of the Antarctic E. coli with 4 of 5 identified gene cassette arrays containing antibiotic resistance genes matching those common in clinical contexts. Disposing untreated sewage into the Antarctic environment does disseminate non-native microorganisms, but the extent of this impact and implications for Antarctic ecosystem health are, as yet, poorly understood. Article in Journal/Newspaper Antarc* Antarctic Antarctica Weddell Seals Macquarie University Research Portal Environmental Pollution 215 58 65 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
Class 1 integron Human impacts Sewage ST131 ST95 Wildlife |
spellingShingle |
Class 1 integron Human impacts Sewage ST131 ST95 Wildlife Power, Michelle L. Samuel, Angelingifta Smith, James J. Stark, Jonathon S. Gillings, Michael R. Gordon, David M. Escherichia coli out in the cold:dissemination of human-derived bacteria into the Antarctic microbiome |
topic_facet |
Class 1 integron Human impacts Sewage ST131 ST95 Wildlife |
description |
Discharge of untreated sewage into Antarctic environments presents a risk of introducing non-native microorganisms, but until now, adverse consequences have not been conclusively identified. Here we show that sewage disposal introduces human derived Escherichia coli carrying mobile genetic elements and virulence traits with the potential to affect the diversity and evolution of native Antarctic microbial communities. We compared E. coli recovered from environmental and animal sources in Antarctica to a reference collection of E. coli from humans and non-Antarctic animals. The distribution of phylogenetic groups and frequency of 11 virulence factors amongst the Antarctic isolates were characteristic of E. coli strains more commonly associated with humans. The rapidly emerging E. coli ST131 and ST95 clones were found amongst the Antarctic isolates, and ST95 was the predominant E. coli recovered from Weddell seals. Class 1 integrons were found in 15% of the Antarctic E. coli with 4 of 5 identified gene cassette arrays containing antibiotic resistance genes matching those common in clinical contexts. Disposing untreated sewage into the Antarctic environment does disseminate non-native microorganisms, but the extent of this impact and implications for Antarctic ecosystem health are, as yet, poorly understood. |
format |
Article in Journal/Newspaper |
author |
Power, Michelle L. Samuel, Angelingifta Smith, James J. Stark, Jonathon S. Gillings, Michael R. Gordon, David M. |
author_facet |
Power, Michelle L. Samuel, Angelingifta Smith, James J. Stark, Jonathon S. Gillings, Michael R. Gordon, David M. |
author_sort |
Power, Michelle L. |
title |
Escherichia coli out in the cold:dissemination of human-derived bacteria into the Antarctic microbiome |
title_short |
Escherichia coli out in the cold:dissemination of human-derived bacteria into the Antarctic microbiome |
title_full |
Escherichia coli out in the cold:dissemination of human-derived bacteria into the Antarctic microbiome |
title_fullStr |
Escherichia coli out in the cold:dissemination of human-derived bacteria into the Antarctic microbiome |
title_full_unstemmed |
Escherichia coli out in the cold:dissemination of human-derived bacteria into the Antarctic microbiome |
title_sort |
escherichia coli out in the cold:dissemination of human-derived bacteria into the antarctic microbiome |
publishDate |
2016 |
url |
https://researchers.mq.edu.au/en/publications/427c9963-e7b1-48c2-9c0d-eca7c367d264 https://doi.org/10.1016/j.envpol.2016.04.013 http://www.scopus.com/inward/record.url?scp=84966339577&partnerID=8YFLogxK |
genre |
Antarc* Antarctic Antarctica Weddell Seals |
genre_facet |
Antarc* Antarctic Antarctica Weddell Seals |
op_source |
Power , M L , Samuel , A , Smith , J J , Stark , J S , Gillings , M R & Gordon , D M 2016 , ' Escherichia coli out in the cold : dissemination of human-derived bacteria into the Antarctic microbiome ' , Environmental Pollution , vol. 215 , pp. 58-65 . https://doi.org/10.1016/j.envpol.2016.04.013 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.envpol.2016.04.013 |
container_title |
Environmental Pollution |
container_volume |
215 |
container_start_page |
58 |
op_container_end_page |
65 |
_version_ |
1810497545738125312 |