Impacts of dibenzopyrenes on bacterial community isolated from Gulf of Mexico sediment.
Microbiologyopen
; 9(7): e1039, 2020 07.
Article
em En
| MEDLINE
| ID: mdl-32282132
The presence of polycyclic aromatic hydrocarbons (PAHs) in marine environments as a result of contamination is an environmental concern, especially in regions where oil spills such as the Deepwater Horizon have occurred. While numerous PAHs have been studied for their effects on microbes, the family of dibenzopyrenes has yet to be investigated. In this preliminary study, the impacts of these molecules on the community structure of a bacterial consortium isolated from oil-impacted Gulf of Mexico sediment were examined using high-throughput sequencing, demonstrating intriguing negative impacts on species diversity and abundance. While no measurable degradation of the dibenzopyrenes was observed after 28-day incubation, the abundance of known oil-degrading bacteria from orders such as Oceanospirillales, Caulobacterales, Sphingomonadales, and Nitrosococcales were shown to be enhanced. Of the five isomers of dibenzopyrene studied, dibenzo[a,h]pyrene supported the fewer number of microbial species suggesting the isomer was more toxic compared to the other isomers.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Hidrocarbonetos Policíclicos Aromáticos
/
Bactérias
/
Poluentes Químicos da Água
/
Benzopirenos
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Sedimentos Geológicos
País/Região como assunto:
Mexico
Idioma:
En
Revista:
Microbiologyopen
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Estados Unidos
País de publicação:
Reino Unido