Petroleum-influenced beach sediments of the Campeche Bank, Mexico: Diversity and bacterial community structure assessment

Rosano-Hernández, María C.; Ramírez-Saad, Hugo; Fernández-Linares, Luis

doi:10.1016/j.jenvman.2011.06.046

Cited by 34 publications

(19 citation statements)

References 32 publications

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“…However, highest diversity occurred in the sample with highest pH (9.62) in the present study. Biodiversity was reported to be negatively affected by petroleum contamination in many environments , whereas these results showed a completely opposite trend. Shannon index and microbial abundance reached highest as TPH increased.…”

Section: Discussionmentioning

confidence: 95%

Microbial Community Structures in Petroleum Contaminated Soils at an Oil Field, Hebei, China

Sheng

Wang

Xie

et al. 2016

CLEAN Soil Air Water

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Petroleum hydrocarbons consisting of complicated mixtures of non-aqueous and hydrophobic components have raised a widespread environmental problem and influenced the subsurface microbial ecology. Three subsurface soil samples were collected at an oil field (Hebei, China) to investigate the microbial diversity patterns and their responds to different petroleum hydrocarbon contaminations by using 16S rRNA gene cloning analysis combined with multivariate statistical analysis. The results showed that bacterial clone libraries fell into 16 phylogenetic divisions and 184 operational taxonomic units. Gammaproteobacteria ubiquitously dominated in all samples, while the relative abundance was lowest in the sample with the highest total petroleum hydrocarbon concentration. Known petroleum degrading bacterial genera Alcanivorax, Stenotrophomonas, Pseudomonas, Pseudoxanthomonas, Sphingomonas, and Acidobacterium were abundantly observed, whereas their relative abundances differed greatly under a selection pressure by the complex hydrocarbons. For example, Alcanivorax spp. were the most abundant genera in polycyclic aromatic hydrocarbons and chlorinated hydrocarbons contaminated soils, while both Alcanivorax spp. and Stenotrophomonas spp. dominated in benzene, toluene, ethylbenzene, and xylenes contaminated soils. Additionally, a large fraction of bacterial clones were expectedly affiliated to some uncultured bacteria originated from several similar polluted ecosystems, and bacteria without certain petroleum degrading capacities. These observations indicated that microbial diversity, abundance and community were highly influenced by the concentrations of petroleum constituents in the contaminated soil ecosystems. Understanding the underlying factors that control the abundance of these heterotrophic microorganisms may be advantageous in the bioremediation of petroleum contaminated environments.

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Section: Discussionmentioning

confidence: 95%

Microbial Community Structures in Petroleum Contaminated Soils at an Oil Field, Hebei, China

Sheng

Wang

Xie

et al. 2016

CLEAN Soil Air Water

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“…as substrates have been successfully applied in Microbial fuel cells (MFCs) with satisfied application prospects . On the other hand, with the rapid development of petroleum industry, more attentions were drawn to the crisis of petroleum hydrocarbon pollution because of the unavoidable oil transportation leaking resulting in soil or aquatic system contamination, environmental deterioration as well as influencing on human health . The classical approaches for biodegradation of petroleum hydrocarbon pollution have been reported .…”

Section: Introductionmentioning

confidence: 99%

Microbial Electricity Generation and Isolation of Exoelectrogenic Bacteria Based on Petroleum Hydrocarbon‐contaminated Soil

et al. 2016

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In this study, the petroleum hydrocarbon‐contaminated soil was used as both inoculation and carbon source simultaneously to enrich exoelectrogenic bacteria for using in microbial fuel cell system and it demonstrated working output power density at around 220 mW m−2. The feasible electrochemical properties have displayed by means of cyclic voltammetry and dual‐chamber MFCs experiments. Moreover, two species of exoelectrogens were isolated belonging to Geobacter sp. and Ochrobactrum sp., respectively. This work evaluates the capability of naturally occurring petroleum‐degrading species to produce electric current in bioelectrochemical system. To the best of our knowledge, this is the first time when ecological information on electroactive, petroleum‐degrading consortium is provided.

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“…since the phylum was first identified in 1997 by Ludwig et al [49] and accounts for ∼20% of the soil bacterial community. Acidobacteriarelated bacteria have been proved in the degradation of petroleum [50], PAHs [33,50], and PCBs [32,50] in various habitats. To date, SIP has been successfully applied to investigate the ability of Acidobacterium to metabolize propionate [51], biocide [52], herbicide [53], and benzene [29].…”

Section: Discussionmentioning

confidence: 99%

Bacteria capable of degrading anthracene, phenanthrene, and fluoranthene as revealed by DNA based stable-isotope probing in a forest soil

Song

Jiang

Zhang

et al. 2016

Journal of Hazardous Materials

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h i g h l i g h t s• Investigate PAHs degraders in forest carbon-rich soils via DNA-SIP.• Rhodanobacter is identified to metabolite anthracene for the first time.• The first fluoranthene degrader belongs to Acidobacteria.• Different functions of PAHs degraders in forest soils from contaminated soils. a r t i c l e i n f o a b s t r a c tInformation on microorganisms possessing the ability to metabolize different polycyclic aromatic hydrocarbons (PAHs) in complex environments helps in understanding PAHs behavior in natural environment and developing bioremediation strategies. In the present study, stable-isotope probing (SIP) was applied to investigate degraders of PAHs in a forest soil with the addition of individually 13 C-labeled phenanthrene, anthracene, and fluoranthene. Three distinct phylotypes were identified as the active phenanthrene-, anthracene-and fluoranthene-degrading bacteria. The putative phenanthrene degraders were classified as belonging to the genus Sphingomona. For anthracene, bacteria of the genus Rhodanobacter were the putative degraders, and in the microcosm amended with fluoranthene, the putative degraders were identified as belonging to the phylum Acidobacteria. Our results from DNA-SIP are the first to directly link Rhodanobacter-and Acidobacteria-related bacteria with anthracene and fluoranthene degradation, respectively. The results also illustrate the specificity and diversity of three-and four-ring PAHs degraders in forest soil, contributes to our understanding on natural PAHs biodegradation processes, and also proves the feasibility and practicality of DNA-based SIP for linking functions with identity especially uncultured microorganisms in complex microbial biota.

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Petroleum-influenced beach sediments of the Campeche Bank, Mexico: Diversity and bacterial community structure assessment

Cited by 34 publications

References 32 publications

Microbial Community Structures in Petroleum Contaminated Soils at an Oil Field, Hebei, China

Microbial Community Structures in Petroleum Contaminated Soils at an Oil Field, Hebei, China

Microbial Electricity Generation and Isolation of Exoelectrogenic Bacteria Based on Petroleum Hydrocarbon‐contaminated Soil

Bacteria capable of degrading anthracene, phenanthrene, and fluoranthene as revealed by DNA based stable-isotope probing in a forest soil

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