Effective bioremediation of a petroleum-polluted saline soil by a surfactant-producing Pseudomonas aeruginosa consortium

Ebadi, Ali; Sima, Nayer Azam Khoshkholgh; Olamaee, M; Hashemi, Maryam; Nasrabadi, Reza Ghorbani

doi:10.1016/j.jare.2017.06.008

Cited by 100 publications

(42 citation statements)

References 30 publications

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“…The role of non-clinical environments as a reservoir or a transient recipient of P. aeruginosa is still under debate (Deredjian et al 2014). Based on the absence of several virulence genes (Divya et al 2018), or their non-haemolytic phenotype (Radhapriya et al 2015), environmental P. aeruginosa isolates are sometimes considered as 'non-pathogenic' and are recommended for bioremediation (Ebadi et al 2017), or plant protection purposes (Yasmin et al 2017). Virulence models could provide tools for the reliable assessment of the actual virulence of these strains such as wax moth (Galleria mellonella), a non-mammalian test organism, introduced as an in vivo model for the study of P. aeruginosa (Velikova et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Groundwater, soil and compost, as possible sources of virulent and antibiotic-resistant Pseudomonas aeruginosa

Kaszab

Radó

Kriszt

et al. 2019

International Journal of Environmental Health Research

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Pseudomonas aeruginosa is a major public health concern all around the world. In the frame of this work, a set of diverse environmental P. aeruginosa isolates with various antibiotic resistance profiles were examined in a Galleria mellonella virulence model. Motility, serotypes, virulence factors and biofilm-forming ability were also examined. Molecular types were determined by pulsed-field gel electrophoresis (PFGE). Based on our results, the majority of environmental isolates were virulent in the G. mellonella test and twitching showed a positive correlation with mortality. Resistance against several antibiotic agents such as Imipenem correlated with a lower virulence in the applied G. mellonella model. PFGE revealed that five examined environmental isolates were closely related to clinically detected pulsed-field types. Our study demonstrated that industrial wastewater effluents, composts, and hydrocarboncontaminated sites should be considered as hot spots of high-risk clones of P. aeruginosa.

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Section: Introductionmentioning

confidence: 99%

Groundwater, soil and compost, as possible sources of virulent and antibiotic-resistant Pseudomonas aeruginosa

Kaszab

Radó

Kriszt

et al. 2019

International Journal of Environmental Health Research

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“…As well salinity has an adverse effect on some key enzymes activity which involved in hydrocarbon degradation. Kerr and Capone (1988) and Ebadi et al, (2017) reported that a positive relationship between oil degradation and salinity in estuarine sediments, while Ward and Brock (1978) reported that a great reduction of oil degradation with increasing of salinity in range between 3.3-28.4%, as a result of the general decline in microbial metabolism.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Crude Oil Biodegradation by Pseudomonas reinekei MT1

Selim

Ashour

Alqathafi

2019

Journal of Agricultural Chemistry and Biotechnology

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One of the greatest challenges facing today is endangering living organisms as a result of environmental pollution caused by petroleum crude oil. Therefore it was necessary, to find out a way to remediate these pollutants biologically. An oil degrading bacterial isolate was isolated from oil polluted soils and optimized for oil biodegradation. Psuedomonas reinekei MT1 was able to produce biosurfactants which play a major role in the availability of oil for bacterial biodegradation. Ps. reinekei MT1 gives maximum oil degradation on 30ºC, pH 7, sodium nitrate as nitrogen source and addition of gasoline and triton X100. Oil degradation reaches 69.62% after 15 days of incubation. Salinity decreased oil degradation, although Ps. reinekei MT1 had the ability of growing and degrading oil in salinity reaches 2%, while there was neither bacterial growth nor oil degradation at 3%.

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“…Environmental damage also arises due to the intentional discharge of oil and oily wastes into the environment (Lai et al, 2009). With the modern economy's continued dependence on petroleum and increasing world demand for fuel, contamination from these sources is a continuing environmental risk (Ebadi et al, 2017;Urum et al, 2006;Rahman et al, 2003), also potentially leading to increased economic losses (Mao et al, 2015). The widespread use of PHC has invariably led to PHCs being a persistent and long-standing source of soil pollution (Paria, 2008).…”

Section: Environmental Pollutionmentioning

confidence: 99%

“…To combat environmental pollution due to petroleum, environmentally friendly innovative and effective technologies are required (Ebadi et al, 2017;Lai et al, 2009). Cost efficient, cutting-edge technologies are required to remediate and reclaim contaminated soils/sites (Mao et al, 2015).…”

Section: Remediation Techniquesmentioning

confidence: 99%

“…In developing effective bioremediation strategies, the effectiveness of the method on soils polluted by PHC is dependent on both the biotic and abiotic elements due to the effects these elements have on growth and activity of the microorganisms capable of degrading the petroleum hydrocarbons (Ebadi et al, 2017). Factors affecting microorganism growth and consequently the quantity and quality of biosurfactant production are broadly classified into environmental and nutritional factors.…”

Section: Introductionmentioning

confidence: 99%

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Bioremediation of drill cuttings and petroleum-contaminated soil using biosurfactant-enhanced soil washing, biostimulation, and bioaugmentation

Olasanmi¹

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Innovative technologies to combat environmental pollution are a significant part of sustainability research due to their increasing economic and environmental impact. The present biological process-based research study described herein was conducted in three phases. It investigated the effects of rhamnolipid-enhanced soil washing (phase 1), bioremediation treatment using indigenous microorganisms (phase 2), and the effect of four specific environmental and nutritional conditions (phase 3) on the biodegradation of petroleum hydrocarbons (PHC) in drill cuttings and petroleum-contaminated soil obtained from sites in northeastern British Columbia. For phase 1, maximum PHC reduction recorded for total petroleum hydrocarbon (TPH) and the petroleum hydrocarbon fractions-F2, F3 and F4 fractions was 58.5%, 48.4%, 63.5% and 59.8% respectively for petroleum-contaminated soil, and 76.8%, 85.4%, 71.3% and 76.9% respectively for drill cuttings. In phase 2, maximum PHC reduction of TPH, F2 and F3 fractions was 94.9%, 98.8% and 94.0% respectively for petroleum-contaminated soil and 82.6%, 94.9% and 59.5% respectively for drill cuttings following 50 days of rhamnolipid-mediated biodegradation treatment. Results from experiments conducted in phase 3 confirmed the importance of oxygen availability in biodegradation and indicated the inhibitory effects of excessive addition of biosurfactants and nutrients to hydrocarbon biodegradation treatments. Promising TPH degradation results were observed in conditions that normally slow down biodegradation. TPH degradation of 59.0%, 59.8% and 56.7% were observed in experiments conducted at an average temperature of-7.46 °C, and in waterlogged and airtight conditions respectively. These results provide important insight on rhamnolipid-mediated biodegradation and indicate the high potential of rhamnolipid iii washing and bioremediation treatments as a combined approach to reduce PHC to levels within regulatory standards. iv

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Effective bioremediation of a petroleum-polluted saline soil by a surfactant-producing Pseudomonas aeruginosa consortium

Abstract: Graphical abstract

Cited by 100 publications

References 30 publications

Groundwater, soil and compost, as possible sources of virulent and antibiotic-resistant Pseudomonas aeruginosa

Groundwater, soil and compost, as possible sources of virulent and antibiotic-resistant Pseudomonas aeruginosa

Enhancement of Crude Oil Biodegradation by Pseudomonas reinekei MT1

Bioremediation of drill cuttings and petroleum-contaminated soil using biosurfactant-enhanced soil washing, biostimulation, and bioaugmentation

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