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Muratova, A. Yu.; Turkovskaya, O. V.; Hübner, T.; Kuschk, Peter

doi:10.1023/a:1026238720268

Cited by 47 publications

(8 citation statements)

References 10 publications

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“…Also, the removal of the oil may be the result of root exudates produced by the D. reflexa plant which enhanced the activities of soil microorganisms in mineralizing the oil in the soil. This is supported by the findings of different authors, who stated that flavonoids and other compounds released by roots can stimulates growth and activity of hydrocarbon degrading bacteria 12), 33) . In addition, root growth and death are known to promote soil aeration which can enhance oxidative degradation of organic contaminants 33),34) .…”

Section: Plant Uptake Of Diesel Hydrocarbonssupporting

confidence: 67%

“…The results are similar to the finding of who reported heterotrophic microorganisms that are able to degraded oil was significantly increasing by stimulating plant compare to no plant contaminated soil. They observed that the amount of PAH oxidizing microorganisms was seven times higher in the rhizosphere of alfalfa and in the case of reed was four times lower in the rhizosphere than control soil 30) . The HUB isolated from the contaminated soil was identified as species of Pseudomonas, .…”

Section: Bacterial Countsmentioning

confidence: 99%

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Diesel Fuel Degradation from Contaminated Soil by <i>Dracaena reflexa</i> Using Organic Waste Supplementation

Dadrasnia

Pariatamby

2013

J. Jpn. Petrol. Inst.

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The phytoremediation potential of Dracaena reflexa to remediate diesel contaminated soil was determined in a greenhouse study. D. reflexa was planted in soil contaminated with different concentrations of diesel fuel (1, 2.5 and 5 wt%). 5 (wt%) of three different organic wastes [tea leaf (TL), soy cake (SC) and potato skin (PS)] were mixed with the soil and monitored for 270 days. The results of the biodegradation of oil and its fractions showed a reduction of 90 % and 98 % of total petroleum hydrocarbons (TPHs) in soil amended with SC, at 2.5 % and 1 % fuel, respectively. It was observed that in the non-cultivated polluted soil the TPHs, were reduced by 24-27 %. Soil amended with SC provided the greatest diesel fuel loss when compared to other organic waste supplements. D. reflexa roots did not accumulate hydrocarbons from the soil, but the number of hydrocarbon utilizing bacteria was high in the rhizosphere, thus suggesting that the mechanism of the oil degradation was via rhizodegradation. This study has shown that D. reflexa amended with organic wastes has a potential for biodegrading hydrocarboncontaminated soil.

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Section: Plant Uptake Of Diesel Hydrocarbonssupporting

confidence: 67%

Section: Bacterial Countsmentioning

confidence: 99%

Diesel Fuel Degradation from Contaminated Soil by <i>Dracaena reflexa</i> Using Organic Waste Supplementation

Dadrasnia

Pariatamby

2013

J. Jpn. Petrol. Inst.

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“…While shaping microbial diversity by stimulating some microbial populations, plant root exudates could favor PAH degradation through rhizodegradation processes [11][12][13] and modify HM speciation, mobility, and availability [10] in the rhizosphere. Among different plant species used in rhizoremediation assays, alfalfa is described as tolerant to pollution and interesting for PAH remediation [14,15], similarly to other legumes such as red lentil [16]. A contribution of mycorrhizal colonization of plant roots to PAH dissipation [17] and HM tolerance [18] has also been shown.…”

Section: Introductionmentioning

confidence: 99%

The Bacterial and Fungal Diversity of an Aged PAH- and Heavy Metal-Contaminated Soil is Affected by Plant Cover and Edaphic Parameters

Bourceret

Cébron

Tisserant³

et al. 2015

Microb Ecol

107

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Industrial wasteland soils with aged PAH and heavy metal contaminations are environments where pollutant toxicity has been maintained for decades. Although the communities may be well adapted to the presence of stressors, knowledge about microbial diversity in such soils is scarce. Soil microbial community dynamics can be driven by the presence of plants, but the impact of plant development on selection or diversification of microorganisms in these soils has not been established yet. To test these hypotheses, aged-contaminated soil samples from a field trial were collected. Plots planted with alfalfa were compared to bare soil plots, and bacterial and fungal diversity and abundance were assessed after 2 and 6 years. Using pyrosequencing of 16S rRNA gene and ITS amplicons, we showed that the bacterial community was dominated by Proteobacteria, Actinobacteria, and Bacteroidetes and was characterized by low Acidobacteria abundance, while the fungal community was mainly represented by members of the Ascomycota. The short-term toxic impact of pollutants usually reduces the microbial diversity, yet in our samples bacterial and fungal species richness and diversity was high suggesting that the community structure and diversity adapted to the contaminated soil over decades. The presence of plants induced higher bacterial and fungal diversity than in bare soil. It also increased the relative abundance of bacterial members of the Actinomycetales, Rhizobiales, and Xanthomonadales orders and of most fungal orders. Multivariate analysis showed correlations between microbial community structure and heavy metal and PAH concentrations over time, but also with edaphic parameters (C/N, pH, phosphorus, and nitrogen concentrations).

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“…The next stage was to determine correlation between time in days and the number of cells of bacterial strain BS 101 in culture on liquid medium containing diesel oil. Experimental data were fitted to exponential equation (2), obtaining the value of the coefficient R = 0.9988, and the proportion of explained variance 0.9977 ( Fig. 3).…”

Section: Resultsmentioning

confidence: 99%

“…Petroleum derived products in environment are subject to transformations of abiotic character (evaporation, leaching, chemical and photochemical oxidation etc.) as well as biotic ones where plants [1,2] and soil microflora [3,4] take part in the remediation of soils contaminated with petroleum derived products. A biological method of cleaning the environment contaminated with petroleum derived product is one of the most rapidly developing fields of environmental restoration [5], involving native microbial populations [6] or exogenous microorganisms [7,8].…”

Section: Introductionmentioning

confidence: 99%

An attempt at mathematical modelling of the process of microbiological biodegradation of diesel oil

Hawrot-Paw

Nowak

2012

Environ. Protect. Eng.

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A mathematical model has been created describing the process of biodegradation of diesel oil. Data for model development were obtained from two previously conducted laboratory experiments. The correlation between the measured and calculated of the biodegradation of diesel fuel data indicates the existing connection between them. It was found that the proposed mathematical approach of the biological process showed similar direction and nature of changes occurring in these two data sets.

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Cited by 47 publications

References 10 publications

Diesel Fuel Degradation from Contaminated Soil by <i>Dracaena reflexa</i> Using Organic Waste Supplementation

Diesel Fuel Degradation from Contaminated Soil by <i>Dracaena reflexa</i> Using Organic Waste Supplementation

The Bacterial and Fungal Diversity of an Aged PAH- and Heavy Metal-Contaminated Soil is Affected by Plant Cover and Edaphic Parameters

An attempt at mathematical modelling of the process of microbiological biodegradation of diesel oil

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