The prospects of using bacteria of the genus Rhodococcus and microbial surfactants for the degradation of oil pollutants

Karpenko, Elena; Вільданова-Марцишин, Р. І.; Shcheglova, N. S.; Пирог, Т. П.; Волошина, Ирина Николаевна

doi:10.1134/s0003683806020074

Cited by 16 publications

(6 citation statements)

References 9 publications

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“…According to , these strains possess oxygenases, making them capable to biodegrade the constituents of petroleum such as n-alkanes, isoalkanes, cycloalkanes, and aromatic compounds (Atlas, 1981;Hamamura et al, 2008). For example, R. erythropolis was able to use 20,000 ppmv of crude oil as the only energy source (Karpenko et al, 2006) demonstrating the potential of Rhodococcus strains to bioremediation. The success of members of the genus Rhodococcus in degrading aromatic compounds is based upon the possession of a wide range of dioxygenases (Larkin et al, 2005).…”

Section: Percentage Of Diesel Degradation and Total Petroleum Hydrocamentioning

confidence: 99%

Characterization and Evaluation of the Potential of a Diesel-Degrading Bacterial Consortium Isolated from Fresh Mangrove Sediment

Lang

Destain

Delvigne

et al. 2016

Water Air Soil Pollut

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Hydrocarbons are ubiquitous and persistent organic pollutants in the environment. In wetlands and marine environments, particularly in mangrove ecosystems, their increase and significant accumulation result from human activities such as oil and gas exploration and exploitation operations. Remediation of these ecosystems requires the development of adequate and effective strategies. Natural attenuation, biostimulation, and bioaugmentation are all biological soil treatment techniques that can be adapted to mangroves. Our experiments were performed on samples of fresh mangrove sediments from the Cameroon estuary and mainly from the Wouri River in Cameroon. This study aims to assess the degradation potential of a bacterial consortium isolated from mangrove sediment. The principle of our bioremediation experiments is based on a series of tests designed to evaluate the potential of an active indigenous microflora and three exogenous pure strains, to degrade diesel with/without adding nutrients. The experiments were conducted in laboratory flasks and a greenhouse in microcosms. In one case, as in the other, the endogenous microflora showed that it was able to degrade diesel. Under stress of the pollutant, the endogenous microflora fits well enough in the middle to enable metabolism of the pollutant. However, the Rhodococcus strain was more effective over time. The degradation rate was 77 and 90 % in the vials containing the sterile sediments and non-sterile sediments, respectively. The results are comparable with those obtained in the microcosms in a greenhouse where only the endogenous microflora were used. The results of this study show that mangrove sediment contains an active microflora that can metabolize diesel. Indigenous and active microflora show an interesting potential for diesel degradation.

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Section: Percentage Of Diesel Degradation and Total Petroleum Hydrocamentioning

confidence: 99%

Characterization and Evaluation of the Potential of a Diesel-Degrading Bacterial Consortium Isolated from Fresh Mangrove Sediment

Lang

Destain

Delvigne

et al. 2016

Water Air Soil Pollut

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“…This is illustrated by the increased desulphurisation of fuel by R. erythropolis in the presence of surfactants (Feng et al, 2006;Patel et al, 1997). A similar observation was made with R. erythropolis EK-1 and surfactants produced by a Pseudomonas strain (Karpenko et al, 2006). Similarly, mycolic acids enhanced the degradation of diesel by Rhodococcus baikonurensis (Lee et al, 2006).…”

Section: Production Of Biosurfactantsmentioning

confidence: 72%

Starvation/stationary-phase survival of Rhodococcus erythropolis SQ1: a physiological and genetic analysis

Fanget

Foley

2010

Arch Microbiol

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The adaptation of Rhodocccus erythropolis SQ1 to energy and carbon starvation was investigated in terms of both the capacity to survive starvation and the contribution of a nutrient-induced stationary phase to cross-protection to other types of environmental stress. It was found that R. erythropolis SQ1 survives for at least 43 days in LB and distilled water, and 65 days in chemically defined medium (CDM) containing high (1%) or low (0.1%) glucose. Furthermore, early stationary-phase R. erythropolis SQ1 grown in CDM 0.1% exhibited enhanced resistance to heat and oxidative stress compared with exponential-phase cells. A second objective of this study was to identify genetic elements involved in starvation/stationary-phase survival. A mutant bank of R. erythropolis SQ1 generated by random transposon insertion mutagenesis was screened; four mutants lost culturability when grown in CDM 1%. No drop in culturability was observed when these mutants were grown in CDM 0.1%. The DNA flanking transposon insertion could be recovered from three mutants. Transposon insertions were found in uvrB (UvrB, part of the DNA excision repair mechanism), between a putative guaB gene and another guaB-like gene, and between a gene encoding a putative phosphoglycerate mutase and putative thioredoxin/cytochrome c biogenesis genes. This represents a first study of the starvation/stationary-phase survival response of Rhodococcus, an organism of immense significance in environmental bioremediation and a number of industrial processes.

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“…There is a conflict between the increased needs of the world community and the inability of the biosphere to meet them. And as a result, the most acute problems arise in an avalanche, such as: climate change, water scarcity and pollution, the disappearance of animal populations, the exhaustion of non-renewable resources, as well as many other negative consequences [16][17][18] that undermine the ability of the system to achieve "sustainable development" [19,20].…”

Section: Resultsmentioning

confidence: 99%

Socio-economic model of sustainable development

et al. 2021

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The article considers the socio-economic model of sustainable development. The study analyzes the conceptual and theoretical foundations of the political, social, economic, spiritual, environmental, scientific, technical and information stability of the state and development of the socioeconomic system. The definition of the concept of the “sustainable state and development” was given, the structural model of the stability of the socioeconomic system was developed. The characteristics of the varieties of the sustainable state and development were defined. The prerequisites for further development of the theoretical foundations of the sustainable development of the socio-economic system were determined.

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The prospects of using bacteria of the genus Rhodococcus and microbial surfactants for the degradation of oil pollutants

Cited by 16 publications

References 9 publications

Characterization and Evaluation of the Potential of a Diesel-Degrading Bacterial Consortium Isolated from Fresh Mangrove Sediment

Characterization and Evaluation of the Potential of a Diesel-Degrading Bacterial Consortium Isolated from Fresh Mangrove Sediment

Starvation/stationary-phase survival of Rhodococcus erythropolis SQ1: a physiological and genetic analysis

Socio-economic model of sustainable development

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