Chemical dispersant enhances microbial exopolymer (EPS) production and formation of marine oil/dispersant snow in surface waters of the subarctic northeast Atlantic
This manuscript contains work conducted during a Ph.D. study undertaken as part of the Natural Environment Research Council (NERC) Centre for Doctoral Training (CDT) in Oil and Gas. It is sponsored by Heriot-Watt University via their James Watt Scholarship Scheme to LS and whose support is gratefull...
Published in: | Frontiers in Microbiology |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://hdl.handle.net/10023/17375 https://doi.org/10.3389/fmicb.2019.00553 |
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/17375 2024-04-21T08:08:26+00:00 Chemical dispersant enhances microbial exopolymer (EPS) production and formation of marine oil/dispersant snow in surface waters of the subarctic northeast Atlantic Suja, Laura Duran Chen, Xindi Summers, Stephen Paterson, David M. Gutierrez, Tony University of St Andrews. School of Biology University of St Andrews. Sediment Ecology Research Group University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Scottish Oceans Institute University of St Andrews. St Andrews Sustainability Institute University of St Andrews. Coastal Resources Management Group 2019-03-26T13:30:06Z 13 1144491 application/pdf https://hdl.handle.net/10023/17375 https://doi.org/10.3389/fmicb.2019.00553 eng eng Frontiers in Microbiology 258320672 a67f04b8-d400-418b-9c3e-a026ed7a9643 85066429235 000461808300001 Suja , L D , Chen , X , Summers , S , Paterson , D M & Gutierrez , T 2019 , ' Chemical dispersant enhances microbial exopolymer (EPS) production and formation of marine oil/dispersant snow in surface waters of the subarctic northeast Atlantic ' , Frontiers in Microbiology , vol. 10 , 553 . https://doi.org/10.3389/fmicb.2019.00553 1664-302X RIS: urn:9362700026ACB78982B903D67B3B48AC ORCID: /0000-0003-1174-6476/work/55901216 https://hdl.handle.net/10023/17375 doi:10.3389/fmicb.2019.00553 Marine oil snow Marine dispersant snow Faroe-Shetland Channel Hydrocarbon-degrading bacteria EPS QH301 Biology DAS SDG 12 - Responsible Consumption and Production SDG 14 - Life Below Water QH301 Journal article 2019 ftstandrewserep https://doi.org/10.3389/fmicb.2019.00553 2024-03-27T15:07:39Z This manuscript contains work conducted during a Ph.D. study undertaken as part of the Natural Environment Research Council (NERC) Centre for Doctoral Training (CDT) in Oil and Gas. It is sponsored by Heriot-Watt University via their James Watt Scholarship Scheme to LS and whose support is gratefully acknowledged. Partial support was also provided through a Royal Society Research Grant (RG140180) and a Society for Applied Microbiology grant to TG. DP received funding from the MASTS pooling initiative (The Marine Alliance for Science and Technology for Scotland) and their support is gratefully acknowledged. A notable feature of the Deepwater Horizon oil spill was the unprecedented formation of marine oil snow (MOS) that was observed in large quantities floating on the sea surface and that subsequently sedimented to the seafloor. Whilst the physical and chemical processes involved in MOS formation remain unclear, some studies have shown that extracellular polymeric substances (EPS) play a role in this process. Here, we report that during exposure of subarctic northeast Atlantic seawater to a chemical dispersant, whether in the presence/absence of crude oil, the dispersant stimulates the production of significant quantities of EPS that we posit serves as a key building block in the formation of MOS. This response is likely conferred via de-novo synthesis of EPS by natural communities of bacteria. We also describe the formation of marine dispersant snow (MDS) as a product of adding chemical dispersants to seawater. Differential staining confirmed that MDS, like MOS, is composed of glycoprotein, though MDS is more protein rich. Using barcoded-amplicon Illumina MiSeq sequencing, we analyzed, for the first time, the bacterial communities associated with MDS and report that their diversity is not significantly dissimilar to those associated with MOS aggregates. Our findings emphasize the need to conduct further work on the effects of dispersants when applied to oil spills at sea, particularly at different sites, and ... Article in Journal/Newspaper Northeast Atlantic Subarctic University of St Andrews: Digital Research Repository Frontiers in Microbiology 10 |
institution |
Open Polar |
collection |
University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
Marine oil snow Marine dispersant snow Faroe-Shetland Channel Hydrocarbon-degrading bacteria EPS QH301 Biology DAS SDG 12 - Responsible Consumption and Production SDG 14 - Life Below Water QH301 |
spellingShingle |
Marine oil snow Marine dispersant snow Faroe-Shetland Channel Hydrocarbon-degrading bacteria EPS QH301 Biology DAS SDG 12 - Responsible Consumption and Production SDG 14 - Life Below Water QH301 Suja, Laura Duran Chen, Xindi Summers, Stephen Paterson, David M. Gutierrez, Tony Chemical dispersant enhances microbial exopolymer (EPS) production and formation of marine oil/dispersant snow in surface waters of the subarctic northeast Atlantic |
topic_facet |
Marine oil snow Marine dispersant snow Faroe-Shetland Channel Hydrocarbon-degrading bacteria EPS QH301 Biology DAS SDG 12 - Responsible Consumption and Production SDG 14 - Life Below Water QH301 |
description |
This manuscript contains work conducted during a Ph.D. study undertaken as part of the Natural Environment Research Council (NERC) Centre for Doctoral Training (CDT) in Oil and Gas. It is sponsored by Heriot-Watt University via their James Watt Scholarship Scheme to LS and whose support is gratefully acknowledged. Partial support was also provided through a Royal Society Research Grant (RG140180) and a Society for Applied Microbiology grant to TG. DP received funding from the MASTS pooling initiative (The Marine Alliance for Science and Technology for Scotland) and their support is gratefully acknowledged. A notable feature of the Deepwater Horizon oil spill was the unprecedented formation of marine oil snow (MOS) that was observed in large quantities floating on the sea surface and that subsequently sedimented to the seafloor. Whilst the physical and chemical processes involved in MOS formation remain unclear, some studies have shown that extracellular polymeric substances (EPS) play a role in this process. Here, we report that during exposure of subarctic northeast Atlantic seawater to a chemical dispersant, whether in the presence/absence of crude oil, the dispersant stimulates the production of significant quantities of EPS that we posit serves as a key building block in the formation of MOS. This response is likely conferred via de-novo synthesis of EPS by natural communities of bacteria. We also describe the formation of marine dispersant snow (MDS) as a product of adding chemical dispersants to seawater. Differential staining confirmed that MDS, like MOS, is composed of glycoprotein, though MDS is more protein rich. Using barcoded-amplicon Illumina MiSeq sequencing, we analyzed, for the first time, the bacterial communities associated with MDS and report that their diversity is not significantly dissimilar to those associated with MOS aggregates. Our findings emphasize the need to conduct further work on the effects of dispersants when applied to oil spills at sea, particularly at different sites, and ... |
author2 |
University of St Andrews. School of Biology University of St Andrews. Sediment Ecology Research Group University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Scottish Oceans Institute University of St Andrews. St Andrews Sustainability Institute University of St Andrews. Coastal Resources Management Group |
format |
Article in Journal/Newspaper |
author |
Suja, Laura Duran Chen, Xindi Summers, Stephen Paterson, David M. Gutierrez, Tony |
author_facet |
Suja, Laura Duran Chen, Xindi Summers, Stephen Paterson, David M. Gutierrez, Tony |
author_sort |
Suja, Laura Duran |
title |
Chemical dispersant enhances microbial exopolymer (EPS) production and formation of marine oil/dispersant snow in surface waters of the subarctic northeast Atlantic |
title_short |
Chemical dispersant enhances microbial exopolymer (EPS) production and formation of marine oil/dispersant snow in surface waters of the subarctic northeast Atlantic |
title_full |
Chemical dispersant enhances microbial exopolymer (EPS) production and formation of marine oil/dispersant snow in surface waters of the subarctic northeast Atlantic |
title_fullStr |
Chemical dispersant enhances microbial exopolymer (EPS) production and formation of marine oil/dispersant snow in surface waters of the subarctic northeast Atlantic |
title_full_unstemmed |
Chemical dispersant enhances microbial exopolymer (EPS) production and formation of marine oil/dispersant snow in surface waters of the subarctic northeast Atlantic |
title_sort |
chemical dispersant enhances microbial exopolymer (eps) production and formation of marine oil/dispersant snow in surface waters of the subarctic northeast atlantic |
publishDate |
2019 |
url |
https://hdl.handle.net/10023/17375 https://doi.org/10.3389/fmicb.2019.00553 |
genre |
Northeast Atlantic Subarctic |
genre_facet |
Northeast Atlantic Subarctic |
op_relation |
Frontiers in Microbiology 258320672 a67f04b8-d400-418b-9c3e-a026ed7a9643 85066429235 000461808300001 Suja , L D , Chen , X , Summers , S , Paterson , D M & Gutierrez , T 2019 , ' Chemical dispersant enhances microbial exopolymer (EPS) production and formation of marine oil/dispersant snow in surface waters of the subarctic northeast Atlantic ' , Frontiers in Microbiology , vol. 10 , 553 . https://doi.org/10.3389/fmicb.2019.00553 1664-302X RIS: urn:9362700026ACB78982B903D67B3B48AC ORCID: /0000-0003-1174-6476/work/55901216 https://hdl.handle.net/10023/17375 doi:10.3389/fmicb.2019.00553 |
op_doi |
https://doi.org/10.3389/fmicb.2019.00553 |
container_title |
Frontiers in Microbiology |
container_volume |
10 |
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1796948744054243328 |