Correction: Microbial Community Analysis of a Coastal Salt Marsh Affected by the Deepwater Horizon Oil Spill

Beazley, Melanie J.; Martinez, Robert J.; Rajan, Suja; Powell, Jessica; Piceno, Yvette; Tom, Lauren M.; Andersen, Gary L.; Hazen, Terry C.; Nostrand, Joy D. Van; Zhou, Jizhong; Mortazavi, Behzad; Sobecky, Patricia A.

doi:10.1371/annotation/72b08ecf-1e78-4668-a094-c818def0e03f

Cited by 36 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar transitions in community composition have been observed in microcosm experiments following amendment of seawater samples with petroleum hydrocarbons (21,22). These analyses support, in general, a paradigm of successive blooms of taxonomically distinct indigenous microbial populations as the oil weathers and labile components are sequentially degraded, leaving less-readily degraded components to feed subsequent blooms (2,17,(23)(24)(25)(26)(27).…”

supporting

confidence: 69%

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

Miller

Techtmann

Joyner

et al. 2020

mBio

Self Cite

View full text Add to dashboard Cite

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.

show abstract

supporting

confidence: 69%

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

Miller

Techtmann

Joyner

et al. 2020

mBio

Self Cite

View full text Add to dashboard Cite

show abstract

“…Notably, greater than two-fold higher molecular complexity was estimated for buried oil from Pensacola Beach compared to the Macondo crude oil from the DWH wellhead, attributed to microbial and geochemical hydrocarbon modifications and transformations during the degradation . The transport, distribution, and breakdown of petroleum hydrocarbons in marine sediments are also a function of the supply of oxygen, which depends on sediment permeability, the flow rate of gas and water through the sediment pores, and microbial consumption. − Previous studies have shown that the rates of oil degradation are extremely slow in anaerobic sediments, ,− especially in ecosystems like wetlands, saltmarshes, and mudflats where the degradation of oil and transport is mass transfer limited . However, in intertidal sediments, such as those studied here, advective transport enhances the rate of oxygen and nutrient exchange .…”

Section: Discussionmentioning

confidence: 99%

Integrated Omics Elucidate the Mechanisms Driving the Rapid Biodegradation of Deepwater Horizon Oil in Intertidal Sediments Undergoing Oxic–Anoxic Cycles

Karthikeyan

Kim

Heritier‐Robbins

et al. 2020

Environ. Sci. Technol.

View full text Add to dashboard Cite

Crude oil buried in intertidal sands may be exposed to alternating oxic and anoxic conditions but the effect of this tidally induced biogeochemical oscillation remains poorly understood, limiting the effectiveness of remediation and managing efforts after oil spills. Here, we used a combination of metatranscriptomics and genome-resolved metagenomics to study microbial activities in oil-contaminated sediments during oxic–anoxic cycles in laboratory chambers that closely emulated in situ conditions. Approximately 5-fold higher reductions in the total petroleum hydrocarbons were observed in the oxic as compared to the anoxic phases with a relatively constant ratio between aerobic and anaerobic oil decomposition rates even after prolonged anoxic conditions. Metatranscriptomics analysis indicated that the oxic phases promoted oil biodegradation in subsequent anoxic phases by microbially mediated reoxidation of alternative electron acceptors like sulfide and by providing degradation-limiting nitrogen through biological nitrogen fixation. Most population genomes reconstructed from the mesocosm samples represented uncultured taxa and were present typically as members of the rare biosphere in metagenomic data from uncontaminated field samples, implying that the intertidal communities are adapted to changes in redox conditions. Collectively, these results have important implications for enhancing oil spill remediation efforts in beach sands and coastal sediments and underscore the role of uncultured taxa in such efforts.

show abstract

“…The severe ponds had higher microbial diversity than the moderate ponds, possibly because the wastewater discharged to ponds not long before we collected samples. In contrast to long-term polluted ponds, new wastewater emission may increase certain microbial communities, especially those functioning in livestock wastewater contaminant degradation, which causes an increasing of overall bacterial diversity [49,50]. However, the α diversity of bacterial communities in sediment samples decreased significantly with increasing wastewater contamination.…”

Section: The Alpha Diversity Was Significantly Different For Differenmentioning

confidence: 99%

Pollution Gradients Altered the Bacterial Community Composition and Stochastic Process of Rural Polluted Ponds

Tai

Bao

et al. 2020

Microorganisms

View full text Add to dashboard Cite

Understanding the effects of pollution on ecological communities and the underlying mechanisms that drive them will helpful for selecting a method to mediate polluted ecosystems. Quantifying the relative importance of deterministic and stochastic processes is a very important issue in ecology. However, little is known about their effects on the succession of microbial communities in different pollution levels rural ponds. Also, the processes that govern bacterial communities in polluted ponds are poorly understood. In this study, the microbial communities in water and sediment from the ponds were investigated by using the 16S rRNA gene high-throughput sequencing technology. Meanwhile, we used null model analyses based on a taxonomic and phylogenetic metrics approach to test the microbial community assembly processes. Pollution levels were found to significantly alter the community composition and diversity of bacteria. In the sediment samples, the bacterial diversity indices decreased with increasing pollutant levels. Between-community analysis revealed that community assembly processes among water and sediment samples stochastic ratio both gradually decreased with the increased pollution levels, indicating a potential deterministic environmental filtering that is elicited by pollution. Our results identified assemblage drivers of bacterial community is important for improving the efficacies of ecological evaluation and remediation for contaminated freshwater systems.

show abstract

Correction: Microbial Community Analysis of a Coastal Salt Marsh Affected by the Deepwater Horizon Oil Spill

Cited by 36 publications

References 0 publications

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

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

Integrated Omics Elucidate the Mechanisms Driving the Rapid Biodegradation of Deepwater Horizon Oil in Intertidal Sediments Undergoing Oxic–Anoxic Cycles

Pollution Gradients Altered the Bacterial Community Composition and Stochastic Process of Rural Polluted Ponds

Contact Info

Product

Resources

About