Microbiome enrichment from contaminated marine sediments unveils novel bacterial strains for petroleum hydrocarbon and heavy metal bioremediation

Dell’Anno, Filippo; Zyl, Leonardo Joaquim van; Trindade, Marla; Buschi, Emanuela; Cannavacciuolo, Antonio; Pepi, Milva; Sansone, Clementina; Brunet, Christophe; Ianora, Adrianna; Pascale, Donatella de; Golyshin, Peter N.; Dell’Anno, Antonio; Rastelli, Eugenio

doi:10.1016/j.envpol.2022.120772

Cited by 13 publications

(4 citation statements)

References 147 publications

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“…Our results confirmed the dramatic effect that environmental xenobiotics have on microbial communities, shaping their composition and boosting the selection of strains with degrading capacity. Indeed, the effect of petroleum hydrocarbon, heavy metals and microplastic contamination on the soil and marine microbiome was reported 42 , 43 . Zrimec and colleagues 44 showed that the plastic pollution patterns in global soils and oceans correlate with the relative abundance and diversity of plastic-degrading microbial enzymes, demonstrating the plasticity of the gut microbiome, which can quickly adapt in response to external perturbations 45 , 46 .…”

Section: Discussionmentioning

confidence: 99%

Exposure to environmental pollutants selects for xenobiotic-degrading functions in the human gut microbiome

De Filippis,

Valentino,

Sequino

et al. 2024

Nat Commun

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Environmental pollutants from different chemical families may reach the gut microbiome, where they can be metabolized and transformed. However, how our gut symbionts respond to the exposure to environmental pollution is still underexplored. In this observational, cohort study, we aim to investigate the influence of environmental pollution on the gut microbiome composition and potential activity by shotgun metagenomics. We select as a case study a population living in a highly polluted area in Campania region (Southern Italy), proposed as an ideal field for exposomic studies and we compare the fecal microbiome of 359 subjects living in areas with high, medium and low environmental pollution. We highlight changes in gut microbiome composition and functionality that were driven by pollution exposure. Subjects from highly polluted areas show higher blood concentrations of dioxin and heavy metals, as well as an increase in microbial genes related to degradation and/or resistance to these molecules. Here we demonstrate the dramatic effect that environmental xenobiotics have on gut microbial communities, shaping their composition and boosting the selection of strains with degrading capacity. The gut microbiome can be considered as a pivotal player in the environment-health interaction that may contribute to detoxifying toxic compounds and should be taken into account when developing risk assessment models. The study was registered at ClinicalTrials.gov with the identifier NCT05976126.

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Section: Discussionmentioning

confidence: 99%

Exposure to environmental pollutants selects for xenobiotic-degrading functions in the human gut microbiome

De Filippis,

Valentino,

Sequino

et al. 2024

Nat Commun

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“…These provide the basis of utilizing microorganisms for remediation of chemical contaminants from the environment. In addition, studies have indicated that these adaptive features of microorganisms in different media is a necessary requirement for selecting the type of microorganism for bioremediation (Dell'Anno et al, 2023;Gosai et al, 2022;Sharma et al, 2021a).…”

Section: Synopsis Of Metagenomics As a Predictive Tool For Environmen...mentioning

confidence: 99%

Metagenomics: an emerging tool for the chemistry of environmental remediation

Offiong,

Edet,

Shaibu

et al. 2023

Front. Environ. Chem.

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Metagenomics is the study of genetic information, including the sequences and genomes of microorganisms present in an environment. Since 1998, the full-scale application of this technique to environmental chemistry has brought significant advances in the characterization of the nature and chemical composition/distribution of contaminants present in environmental matrices of contaminated and/or remediated sites. This has been critical in the selection of microorganisms and has contributed significantly to the success of this biological treatment over the years. Metagenomics has gone through different phases of development, which ranges from initial sequencing strategies to next-generation sequencing (NGS), which is a recently developed technology to obtain more robust deoxyribonucleic acid (DNA) profile of microorganisms devoid of chimeric sequences which reduces the quality of metagenomic data. Therefore, the objective of this review is to evaluate the applications of metagenomics in the understanding of environmental dynamics of chemical contaminants during remediation studies. Also, this review presents the relationship between biological characteristics of microorganisms and chemical properties of chemical compounds, which forms the basis of bioremediation and could be useful in developing predictive models that could enhance remediation efficiency. In conclusion, metagenomic techniques have improved the characterisation of chemical contaminants in the environment and provides a correlation for useful prediction of the type of contaminant expected in various environmental matrices.

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“…Pollution from the oil industry has always caused short-, medium-, and long-term environmental impacts, such as the contamination of water, air, and soil, with adverse effects on both fauna and flora [1][2][3][4][5], as well as economic impacts, mainly affecting fisheries, tourism, and coastal areas. All complications generated by the oil industry can be mitigated by a combination of rigorous regulations, advances in clean technologies, and a global commitment to the transition to renewable energy sources [6,7].…”

Section: Introductionmentioning

confidence: 99%

Treatment of Oily Effluents Using a Bacterial Cellulose Membrane as the Filter Bed

Medeiros,

Silva Junior,

Durval

et al. 2024

Preprint

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One of the main challenges in the treatment of industrial wastewater is the removal of oil-in-water emulsions, which are stable and therefore difficult to treat. Bacterial cellulose (BC) has structural characteristics that make it an ideal filtration membrane. The present study investigated the effectiveness of a BC membrane filtration system for the treatment of oily industrial wastewaters. The results demonstrated that BC is highly effective at removing oily contaminants (~99%), reducing the colour and particulate matter of wastewater, as well as eliminating nearly the entire microbiological load (~99%). SEM, MEV, FTIR, XRD, and TGA demonstrated the presence of oil in the interior of the membrane after filtration, characteristic peaks of its chemical composition, and a 40% reduction in crystallinity. TGA revealed an increase from three (pre-filtration) to five (post-filtration) stages of thermal degradation, indicating the retention of the contaminant in the BC. The mechanical tests demonstrated that the membrane has tensile strength of 72.13 ± 8.22 MPa and tolerated elongation of up to 21.11 ± 4.81% prior to tearing. The BC membrane also exhibited excellent flexibility, as it could be folded &gt; 100 times at the same point without exhibiting signs of tearing. The BC surpasses traditional methods, such as activated charcoal and effluent treatment stations, in the removal of emulsified oils. The findings demonstrate that BC is promising for the treatment of industrial wastewaters, which is a field that requires continual technological innovations to mitigate the environmental impacts of the oil industry.

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Microbiome enrichment from contaminated marine sediments unveils novel bacterial strains for petroleum hydrocarbon and heavy metal bioremediation

Cited by 13 publications

References 147 publications

Exposure to environmental pollutants selects for xenobiotic-degrading functions in the human gut microbiome

Exposure to environmental pollutants selects for xenobiotic-degrading functions in the human gut microbiome

Metagenomics: an emerging tool for the chemistry of environmental remediation

Treatment of Oily Effluents Using a Bacterial Cellulose Membrane as the Filter Bed

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