Effect of Co-contamination by PAHs and Heavy Metals on Bacterial Communities of Diesel Contaminated Soils of South Shetland Islands, Antarctica

Gran‐Scheuch, Alejandro; Ramos-Zuñiga, Javiera; Fuentes, Edwar; Bravo, Daniela; Pérez-Donoso, José M.

doi:10.3390/microorganisms8111749

Cited by 43 publications

(16 citation statements)

References 85 publications

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“…Further evidence of the degradation of anthracene and pyrene by the consortium of sponge symbiont bacteria was the decrease in their abundance after an interaction lasting several days (Table 5), as a function of the peak height (Figure 4A-E), changes in the percentage of degraded components (Table 5), formation of new peaks corresponding to biodegradation products (Figure 4), and percentage of biodegradation products (Table 5). The new peaks formed were attributed to simple organic compounds in the form of alcohols, aldehydes, ketones, carboxylic acids, and aromatic components (Table 4; Figure 5) [2,40,57].…”

Section: Discussionmentioning

confidence: 99%

Anthracene and Pyrene Biodegradation Performance of Marine Sponge Symbiont Bacteria Consortium

et al. 2021

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Every petroleum-processing plant produces sewage sludge containing several types of polycyclic aromatic hydrocarbons (PAHs). The degradation of PAHs via physical, biological, and chemical methods is not yet efficient. Among biological methods, the use of marine sponge symbiont bacteria is considered an alternative and promising approach in the degradation of and reduction in PAHs. This study aimed to explore the potential performance of a consortium of sponge symbiont bacteria in degrading anthracene and pyrene. Three bacterial species (Bacillus pumilus strain GLB197, Pseudomonas stutzeri strain SLG510A3-8, and Acinetobacter calcoaceticus strain SLCDA 976) were mixed to form the consortium. The interaction between the bacterial consortium suspension and PAH components was measured at 5 day intervals for 25 days. The biodegradation performance of bacteria on PAH samples was determined on the basis of five biodegradation parameters. The analysis results showed a decrease in the concentration of anthracene (21.89%) and pyrene (7.71%), equivalent to a ratio of 3:1, followed by a decrease in the abundance of anthracene (60.30%) and pyrene (27.52%), equivalent to a ratio of 2:1. The level of pyrene degradation was lower than that of the anthracene due to fact that pyrene is more toxic and has a more stable molecular structure, which hinders its metabolism by bacterial cells. The products from the biodegradation of the two PAHs are alcohols, aldehydes, carboxylic acids, and a small proportion of aromatic hydrocarbon components.

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Section: Discussionmentioning

confidence: 99%

Anthracene and Pyrene Biodegradation Performance of Marine Sponge Symbiont Bacteria Consortium

et al. 2021

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“…Potentially Toxic Elements can be transported over long distances through the atmospheric circulation, and eventually deposited through dry and wet deposition to the Antarctic regions (Bargagli, 2006(Bargagli, , 2008Trevizani et al, 2018;Liu et al, 2021). They were determined in fossil fuels contaminated soils in different regions of Antarctica (Padeiro et al, 2016;Smykla et al, 2018;Alekseev and Abakumov, 2020;Gran-Scheuch et al, 2020). Also these elements have carcinogenic and mutagenic effects and can damage cellular membranes, proteins, enzymes, and DNA (Beyersmann and Hartwig, 2008;Ali et al, 2013;Padeiro et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Polycyclic Aromatic Hydrocarbons and Potentially Toxic Elements in Soils of the Vicinity of the Bulgarian Antarctic Station “St. Kliment Ohridski” (Antarctic Peninsula)

Abakumov

Nizamutdinov

Yaneva

et al. 2021

Front. Environ. Sci.

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The investigation conducted was dialed to quantitative and qualitative evaluation of 15 priority polycyclic aromatic hydrocarbons (PAHs) and Potentially Toxic Elements (Cu, Pb, Zn, Cd, Ni, and Cr) is soils and cryoconites on “St. Kliment Ohridski” Antarctic station territory and its vicinities. Estimation of benzo(a)pyrene (BaP)–equivalents, PAHs and different PAHs isomer pair ratios were used for identification of general toxicity, nature and origin of individual PAHs and their groups. Total concentrations of PAHs in BaP–equivalents showed, that ∑15PAH of all selected points was higher than the threshold concentration (20 μg × kg−1–Russian environmental legislation) for benzo(a)pyrene. Different PAHs isomer ratios showed the natural (petrogenic) source of PAHs at all soils examples (except Cryosol Toxic Transportic). The maximum content among potentially toxic elements was recorded for Zn (75.7 mg × kg−1 at L26), the minimum for Cd (0.201 mg × kg−1 at L1A). Average concentrations of potentially toxic elements are generally lower compared to the results of previous studies. Application of Igeo index, characterizes the majority of the studied soils as unpolluted or practically unpolluted. Data obtained indicates that there is no current critical anthropogenic load on the environmental components of the landscapes investigated.

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“…The new peaks formed are simple organic compounds in the form of alcohols, aldehydes, ketones, carboxylic acids, aromatic components with their respective characteristics (Table 4; Fig. 5) [2,40,57].…”

Section: Discussionmentioning

confidence: 99%

Comparison of Biodegradation Performance of Marine Sponge Symbiont Bacteria Consortium Against Anthracene and Pyrene

Marzuki¹,

Asaf²,

Paena³

et al. 2021

Preprint

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Every petroleum processing industry produces sewage sludge containing several types of poly-cyclic aromatic hydrocarbon (PAHs) components. The degradation of PAH components by physical, biological and chemical methods is not efficient. The use of marine sponge symbiont bacteria is considered an alternative method in the degradation and reduction of PAHs com-pared to the previous method. This study aims to explore the potential and performance of a consortium of sponge symbiont bacteria in degrading anthracene and pyrene. There are three types of bacteria (Bacillus pumilus strain GLB197, Pseudomonas stutzeri strain SLG510A3-8, Acineto-bacter calcoaceticus strain SLCDA 976) were mixed to form a consortium. The interaction between the bacterial consortium suspension and PAH components was measured at 5-day intervals for 25 days. The biodegradation performance of bacteria on PAHs samples was determined based on five biodegradation parameters. The analysis results showed a decrease in the concentration of anthracene (21.89%) and pyrene (7.71%), equivalent to a ratio of 3: 1. The data was followed by a decrease in the abundance of anthracene (60.30%) and pyrene (27.52%), an equivalent ratio of 2: 1. The level of degradation of the pyrene component is lower than that of the anthracene compo-nent, presumably due to the higher toxicity of pyrene and the more stable molecular structure, making it difficult for bacterial cells to destroy it. The biodegradation products are organic compounds of alcohol, aldehyde, carboxylic acids and a small proportion of aromatic hydrocarbon components. Keywords: performance; biodegradation; bacterial consortium; marine sponge; PAHs

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Effect of Co-contamination by PAHs and Heavy Metals on Bacterial Communities of Diesel Contaminated Soils of South Shetland Islands, Antarctica

Cited by 43 publications

References 85 publications

Anthracene and Pyrene Biodegradation Performance of Marine Sponge Symbiont Bacteria Consortium

Anthracene and Pyrene Biodegradation Performance of Marine Sponge Symbiont Bacteria Consortium

Polycyclic Aromatic Hydrocarbons and Potentially Toxic Elements in Soils of the Vicinity of the Bulgarian Antarctic Station “St. Kliment Ohridski” (Antarctic Peninsula)

Comparison of Biodegradation Performance of Marine Sponge Symbiont Bacteria Consortium Against Anthracene and Pyrene

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