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The functional potential of microbial communities in hydraulic fracturing source water and produced water from natural gas extraction characterized by metagenomic sequencing

Mohan, AM and Bibby, KJ and Lipus, D and Hammack, RW and Gregory, KB (2014) The functional potential of microbial communities in hydraulic fracturing source water and produced water from natural gas extraction characterized by metagenomic sequencing. PLoS ONE, 9 (10).

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Abstract

Microbial activity in produced water from hydraulic fracturing operations can lead to undesired environmental impacts and increase gas production costs. However, the metabolic profile of these microbial communities is not well understood. Here, for the first time, we present results from a shotgun metagenome of microbial communities in both hydraulic fracturing source water and wastewater produced by hydraulic fracturing. Taxonomic analyses showed an increase in anaerobic/facultative anaerobic classes related to Clostridia, Gammaproteobacteria, Bacteroidia and Epsilonproteobacteria in produced water as compared to predominantly aerobic Alphaproteobacteria in the fracturing source water. The metabolic profile revealed a relative increase in genes responsible for carbohydrate metabolism, respiration, sporulation and dormancy, iron acquisition and metabolism, stress response and sulfur metabolism in the produced water samples. These results suggest that microbial communities in produced water have an increased genetic ability to handle stress, which has significant implications for produced water management, such as disinfection.


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Mohan, AM
Bibby, KJbibbykj@pitt.eduBIBBYKJ
Lipus, D
Hammack, RW
Gregory, KB
Contributors:
ContributionContributors NameEmailPitt UsernameORCID
EditorForster, Robert JUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date: 22 October 2014
Date Type: Publication
Journal or Publication Title: PLoS ONE
Volume: 9
Number: 10
DOI or Unique Handle: 10.1371/journal.pone.0107682
Schools and Programs: School of Medicine > Computational and Systems Biology
Swanson School of Engineering > Civil and Environmental Engineering
Refereed: Yes
Other ID: NLM PMC4206270
PubMed Central ID: PMC4206270
PubMed ID: 25338024
Date Deposited: 12 May 2015 18:45
Last Modified: 02 Feb 2019 15:55
URI: http://d-scholarship.pitt.edu/id/eprint/24034

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