Microbial Communities across Global Marine Basins Show Important Compositional Similarities by Depth

ABSTRACT The environmental surveys following the 2010 Deepwater Horizon (DWH) spill identified a variety of hydrocarbon-degrading microorganisms, and laboratory studies with field-collected water samples then demonstrated faster-than-expected hydrocarbon biodegradation rates at 5°C. Knowledge about...

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Autores principales:	John I. Miller, Stephen Techtmann, Dominique Joyner, Nagissa Mahmoudi, Julian Fortney, James A. Fordyce, Nargiz GaraJayeva, Faig S. Askerov, Claudio Cravid, Maarten Kuijper, Oliver Pelz, Terry C. Hazen
Formato:	article
Lenguaje:	EN
Publicado:	American Society for Microbiology 2020
Materias:	genomics marine microbiology microbial communities microbial ecology oil biodegradation Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/d7cc49da10614c1095b22004156ea48a
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spelling	oai:doaj.org-article:d7cc49da10614c1095b22004156ea48a2021-11-15T15:56:43ZMicrobial Communities across Global Marine Basins Show Important Compositional Similarities by Depth10.1128/mBio.01448-202150-7511https://doaj.org/article/d7cc49da10614c1095b22004156ea48a2020-08-01T00:00:00Zhttps://journals.asm.org/doi/10.1128/mBio.01448-20https://doaj.org/toc/2150-7511ABSTRACT The environmental surveys following the 2010 Deepwater Horizon (DWH) spill identified a variety of hydrocarbon-degrading microorganisms, and laboratory studies with field-collected water samples then demonstrated faster-than-expected hydrocarbon biodegradation rates at 5°C. Knowledge about microbial community composition, diversity, and functional metabolic capabilities aids in understanding and predicting petroleum biodegradation by microbial communities in situ and is therefore an important component of the petroleum spill response decision-making process. This study investigates the taxonomic composition of microbial communities in six different global basins where petroleum and gas activities occur. Shallow-water communities were strikingly similar across basins, while deep-water communities tended to show subclusters by basin, with communities from the epipelagic, mesopelagic, and bathypelagic zones sometimes appearing within the same cluster. Microbial taxa that were enriched in the water column in the Gulf of Mexico following the DWH spill were found across marine basins. Several hydrocarbon-degrading genera (e.g., Actinobacteria, Pseudomonas, and Rhodobacteriacea) were common across all basins. Other genera such as Pseudoalteromonas and Oleibacter were highly enriched in specific basins. IMPORTANCE Marine microbial communities are a vital component of global carbon cycling, and numerous studies have shown that populations of petroleum-degrading bacteria are ubiquitous in the oceans. Few studies have attempted to distinguish all of the taxa that might contribute to petroleum biodegradation (including, e.g., heterotrophic and nondesignated microbes that respond positively to petroleum and microbes that grow on petroleum as the sole carbon source). This study quantifies the subpopulations of microorganisms that are expected to be involved in petroleum hydrocarbon biodegradation, which is important information during the decision-making process in the event of a petroleum spill accident.John I. MillerStephen TechtmannDominique JoynerNagissa MahmoudiJulian FortneyJames A. FordyceNargiz GaraJayevaFaig S. AskerovClaudio CravidMaarten KuijperOliver PelzTerry C. HazenAmerican Society for Microbiologyarticlegenomicsmarine microbiologymicrobial communitiesmicrobial ecologyoil biodegradationMicrobiologyQR1-502ENmBio, Vol 11, Iss 4 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	genomics marine microbiology microbial communities microbial ecology oil biodegradation Microbiology QR1-502
spellingShingle	genomics marine microbiology microbial communities microbial ecology oil biodegradation Microbiology QR1-502 John I. Miller Stephen Techtmann Dominique Joyner Nagissa Mahmoudi Julian Fortney James A. Fordyce Nargiz GaraJayeva Faig S. Askerov Claudio Cravid Maarten Kuijper Oliver Pelz Terry C. Hazen Microbial Communities across Global Marine Basins Show Important Compositional Similarities by Depth
description	ABSTRACT The environmental surveys following the 2010 Deepwater Horizon (DWH) spill identified a variety of hydrocarbon-degrading microorganisms, and laboratory studies with field-collected water samples then demonstrated faster-than-expected hydrocarbon biodegradation rates at 5°C. Knowledge about microbial community composition, diversity, and functional metabolic capabilities aids in understanding and predicting petroleum biodegradation by microbial communities in situ and is therefore an important component of the petroleum spill response decision-making process. This study investigates the taxonomic composition of microbial communities in six different global basins where petroleum and gas activities occur. Shallow-water communities were strikingly similar across basins, while deep-water communities tended to show subclusters by basin, with communities from the epipelagic, mesopelagic, and bathypelagic zones sometimes appearing within the same cluster. Microbial taxa that were enriched in the water column in the Gulf of Mexico following the DWH spill were found across marine basins. Several hydrocarbon-degrading genera (e.g., Actinobacteria, Pseudomonas, and Rhodobacteriacea) were common across all basins. Other genera such as Pseudoalteromonas and Oleibacter were highly enriched in specific basins. IMPORTANCE Marine microbial communities are a vital component of global carbon cycling, and numerous studies have shown that populations of petroleum-degrading bacteria are ubiquitous in the oceans. Few studies have attempted to distinguish all of the taxa that might contribute to petroleum biodegradation (including, e.g., heterotrophic and nondesignated microbes that respond positively to petroleum and microbes that grow on petroleum as the sole carbon source). This study quantifies the subpopulations of microorganisms that are expected to be involved in petroleum hydrocarbon biodegradation, which is important information during the decision-making process in the event of a petroleum spill accident.
format	article
author	John I. Miller Stephen Techtmann Dominique Joyner Nagissa Mahmoudi Julian Fortney James A. Fordyce Nargiz GaraJayeva Faig S. Askerov Claudio Cravid Maarten Kuijper Oliver Pelz Terry C. Hazen
author_facet	John I. Miller Stephen Techtmann Dominique Joyner Nagissa Mahmoudi Julian Fortney James A. Fordyce Nargiz GaraJayeva Faig S. Askerov Claudio Cravid Maarten Kuijper Oliver Pelz Terry C. Hazen
author_sort	John I. Miller
title	Microbial Communities across Global Marine Basins Show Important Compositional Similarities by Depth
title_short	Microbial Communities across Global Marine Basins Show Important Compositional Similarities by Depth
title_full	Microbial Communities across Global Marine Basins Show Important Compositional Similarities by Depth
title_fullStr	Microbial Communities across Global Marine Basins Show Important Compositional Similarities by Depth
title_full_unstemmed	Microbial Communities across Global Marine Basins Show Important Compositional Similarities by Depth
title_sort	microbial communities across global marine basins show important compositional similarities by depth
publisher	American Society for Microbiology
publishDate	2020
url	https://doaj.org/article/d7cc49da10614c1095b22004156ea48a
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Microbial Communities across Global Marine Basins Show Important Compositional Similarities by Depth

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