Reconstruction of bacterial community structure and variation for enhanced petroleum hydrocarbons degradation through biostimulation of oil contaminated soil

Shahi, Aiyoub; Aydın, Sevcan; İnce, Bahar; İnce, Orhan

doi:10.1016/j.cej.2016.07.016

Cited by 119 publications

(32 citation statements)

References 29 publications

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“…A series of studies indicated that the addition of inorganic or organic nitrogen-rich nutrients (biostimulation) is an effective approach to enhancing the bioremediation process (25). However, in our experiment, the additional inorganic nitrogen or organic nitrogen produced opposite results regarding their effect on the biodegradation of nitroaromatic compounds.…”

Section: Discussioncontrasting

confidence: 55%

Synergistic Effects of Adding a Substrate and an Organic Reductant for Stimulating the Bioremediation of 4-chloronitrobenzene-contaminated Soil

Zhang

Qian

et al. 2020

Preprint

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Background:Soil contaminated with 4-chloronitrobenzene (4NCB) is resistant to microbial degradation due to the electron-withdrawing properties of the nitro and chloro groups in 4NCB. Currently, sufficient information is not available on how to use biostimulation strategies to enhance the bioremediation of 4NCB-contaminated soil.Results:In the present study, a novel strategy was developed by utilizing the synergistic effects of adding an organic reductant (ascorbic acid, VC) and an organic nitrogen source (peptone) to stimulate the biodegradation of 4NCB-contaminated soil. Using this strategy, the bioremediation of 1 g-4NCB/ kg-1 soil could be completed within 8 days in soil batch reactors. Furthermore, the study discovered two 4NCB cometabolic intermediates in the soil reactors added with peptone and VC, and for the first time, 4NCB was transformed to 4-chlorofromanilide.Conclusion:The proposed strategy is promising because it is highly efficient, easy to control and involves a non-toxic, environmentally friendly substrate/reductant.). Finally, this approach warrants future studies to extend its applications to soils contaminated with other nitroaromatic compounds.

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Section: Discussioncontrasting

confidence: 55%

Synergistic Effects of Adding a Substrate and an Organic Reductant for Stimulating the Bioremediation of 4-chloronitrobenzene-contaminated Soil

Zhang

Qian

et al. 2020

Preprint

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“…Shahi et al . 25 reported that these taxa were among the dominant phyla that significantly increased in petroleum hydrocarbon-contaminated soils and proved to be the most influential on the biodegradation of these pollutants. Moreover, consistent with previous studies, a shift to Proteobacteria dominance (from 26.7 to 38.8% and from 23.5 to 37.5% in G and TD, respectively) in hydrocarbon 26 and heavy metal 27 polluted soils was observed.…”

Section: Resultsmentioning

confidence: 99%

“… 5 reported that Anaerolineae was associated with anaerobic degradation of oil-related compounds and that its presence in soils could be related to the natural attenuation under anoxic conditions. Verrucomicrobia was recognized as the most abundant phylum in an oil-contaminated soil sampled from major oilfields in Northern China 49 , and it was ubiquitous in multiple petroleum-contaminated soils 25 , 53 . Finally, among eukaryotes, Basidiomycota, particularly Malasseziales, could be considered a fungal biomarker in contaminated soils.…”

Section: Resultsmentioning

confidence: 99%

Comparative assessment of autochthonous bacterial and fungal communities and microbial biomarkers of polluted agricultural soils of the Terra dei Fuochi

Ventorino

Pascale

Adamo

et al. 2018

Sci Rep

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Organic and inorganic xenobiotic compounds can affect the potential ecological function of the soil, altering its biodiversity. Therefore, the response of microbial communities to environmental pollution is a critical issue in soil ecology. Here, a high-throughput sequencing approach was used to investigate the indigenous bacterial and fungal community structure as well as the impact of pollutants on their diversity and richness in contaminated and noncontaminated soils of a National Interest Priority Site of Campania Region (Italy) called “Terra dei Fuochi”. The microbial populations shifted in the polluted soils via their mechanism of adaptation to contamination, establishing a new balance among prokaryotic and eukaryotic populations. Statistical analyses showed that the indigenous microbial communities were most strongly affected by contamination rather than by site of origin. Overabundant taxa and Actinobacteria were identified as sensitive biomarkers for assessing soil pollution and could provide general information on the health of the environment. This study has important implications for microbial ecology in contaminated environments, increasing our knowledge of the capacity of natural ecosystems to develop microbiota adapted to polluted soil in sites with high agricultural potential and providing a possible approach for modeling pollution indicators for bioremediation purposes.

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“…Lysobacter , Parvibaculum , Prevotella , Bacteroides , Planomicrobium and Treponema were the predominant CRT. Anaerolinea , which positively correlated with TPH, was previously identified as the dominant bacterial group in an oil‐contaminated soil sample (Shahi, Aydin, Ince, & Ince, ). Lysobacter , Gordonia and Parvibaculum were positively correlated with the nutrient factors measured in this study, indicating their potential roles in eutrophic life strategies (Zhao et al., ).…”

Section: Discussionmentioning

confidence: 96%

Biogeography and ecological diversity patterns of rare and abundant bacteria in oil‐contaminated soils

2017

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Revealing the biogeographies and ecologies of rare and abundant microorganisms is crucial to understand ecosystem diversity and function. In this study, we investigated the biogeographic assemblies and ecological diversity patterns of rare and abundant bacteria in long-term oil-contaminated soils at intervals of 46-360 km by performing high-throughput sequencing of 16S rRNA genes. The results clearly revealed distinct distribution patterns for rare and abundant bacteria in soil samples. Rare taxa were unevenly distributed; however, abundant taxa were ubiquitous across all samples. Both rare and abundant subcommunities showed significant distance-decay relationships, and their assemblies were driven by different factors. The rare subcommunity primarily exhibited a spatially structured distribution (i.e., stochastic processes), while edaphic factors (i.e., deterministic processes) largely contributed to the structure of the abundant subcommunity. A network analysis revealed closer relationships between abundant bacteria and their heightened influence on other co-occurrences in the community compared with rare species. In conclusion, rare microbial taxa may play potential roles in maintaining ecosystem diversity, although they do not appear to be central to microbial networks. Abundant microbes are vital for microbial co-occurrences in oil-contaminated soils, and high relative abundance and ubiquitous distribution suggest potential roles in the degradation of organic pollutants.

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Reconstruction of bacterial community structure and variation for enhanced petroleum hydrocarbons degradation through biostimulation of oil contaminated soil

Cited by 119 publications

References 29 publications

Synergistic Effects of Adding a Substrate and an Organic Reductant for Stimulating the Bioremediation of 4-chloronitrobenzene-contaminated Soil

Synergistic Effects of Adding a Substrate and an Organic Reductant for Stimulating the Bioremediation of 4-chloronitrobenzene-contaminated Soil

Comparative assessment of autochthonous bacterial and fungal communities and microbial biomarkers of polluted agricultural soils of the Terra dei Fuochi

Biogeography and ecological diversity patterns of rare and abundant bacteria in oil‐contaminated soils

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