Current research on simultaneous oxidation of aliphatic and aromatic hydrocarbons by bacteria of genus Pseudomonas

Ivanova, Anastasia A.; Mullaeva, Svetlana A; Сазонова, О. И.; Petrikov, Kirill; Vetrova, Anna

doi:10.1007/s12223-022-00966-5

Cited by 16 publications

(10 citation statements)

References 108 publications

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“…The amount of research into this topic is, however, very limited. Most approaches to studies of pseudomonads capable of degrading alkanes and PAHs include merely the assessment of microbial growth ability on selected substrates, with some works analysing the genetic determinants responsible for hydrocarbon degradation 31 . It should also be kept in mind that the ability to grow on various classes of hydrocarbons is often simply not tested, which, obviously, reduces the significance of the described degraders.…”

Section: Introductionmentioning

confidence: 99%

Pseudomonas veronii strain 7–41 degrading medium-chain n-alkanes and polycyclic aromatic hydrocarbons

Mullaeva

Delegan

Streletskii

et al. 2022

Sci Rep

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Pollution of the environment by crude oil and oil products (represented by various types of compounds, mainly aliphatic, mono- and polyaromatic hydrocarbons) poses a global problem. The strain Pseudomonas veronii 7–41 can grow on medium-chain n-alkanes (C8–C12) and polycyclic aromatic hydrocarbons such as naphthalene. We performed a genetic analysis and physiological/biochemical characterization of strain 7–41 cultivated in a mineral medium with decane, naphthalene or a mixture of the hydrocarbons. The genes responsible for the degradation of alkanes and PAHs are on the IncP-7 conjugative plasmid and are organized into the alk and nah operons typical of pseudomonads. A natural plasmid carrying functional operons for the degradation of two different classes of hydrocarbons was first described. In monosubstrate systems, 28.4% and 68.8% of decane and naphthalene, respectively, were biodegraded by the late stationary growth phase. In a bisubstrate system, these parameters were 25.4% and 20.8% by the end of the exponential growth phase. Then the biodegradation stopped, and the bacterial culture started dying due to the accumulation of salicylate (naphthalene-degradation metabolite), which is toxic in high concentrations. The activity of the salicylate oxidation enzymes was below the detection limit. These results indicate that the presence of decane and a high concentration of salicylate lead to impairment of hydrocarbon degradation by the strain.

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Section: Introductionmentioning

confidence: 99%

Pseudomonas veronii strain 7–41 degrading medium-chain n-alkanes and polycyclic aromatic hydrocarbons

Mullaeva

Delegan

Streletskii

et al. 2022

Sci Rep

Self Cite

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“…Strains from the genus Pseudomonas are widespread and have diverse metabolic properties, among which is the ability to degrade alkanes [ 28 , 29 , 30 , 31 ]. Analysis of the genomic sequence of P. oleovorans strain ICTN13 revealed that this genome encodes one alkane hydroxylase, AlkB.…”

Section: Resultsmentioning

confidence: 99%

Potential of Indigenous Strains Isolated from the Wastewater Treatment Plant of a Crude Oil Refinery

et al. 2023

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Contamination of the environment with crude oil or other fuels is an enormous disaster for all organisms. The microbial communities for bioremediation have been an effective tool for eliminating pollution. This study aimed to determine individual cultures’ and a strain mixture’s ability to utilize alkanes (single alkanes and crude oil). The proper study of pure cultures is necessary to design synergistically working consortia. The Acinetobacter venetianus ICP1 and Pseudomonas oleovorans ICTN13 strains isolated from a wastewater treatment plant of a crude oil refinery can grow in media containing various aromatic and aliphatic hydrocarbons. The genome of the strain ICP1 contains four genes encoding alkane hydroxylases, whose transcription depended on the length of the alkane in the media. We observed that the hydrophobic cells of the strain ICP1 adhered to hydrophobic substrates, and their biofilm formation increased the bioavailability and biodegradation of the hydrocarbons. Although strain ICTN13 also has one alkane hydroxylase-encoding gene, the growth of the strain in a minimal medium containing alkanes was weak. Importantly, the growth of the mixture of strains in the crude oil-containing medium was enhanced compared with that of the single strains, probably due to the specialization in the degradation of different hydrocarbon classes and co-production of biosurfactants.

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“…The lack of any known polyfluorinated natural products (Murphy et al ., 2003; Fincker and Spormann, 2017) suggests that defluorination capabilities will be rare in nature. In laboratory studies, Pseudomonas strains have proven to be adept at biodegrading alkyl, alkenyl and aryl hydrocarbons and halides, including those that are fluorinated (Akkaya et al ., 2018; Ivanova et al ., 2022). They are highly resistant to fluoride (Calero et al ., 2020), making them amenable to surviving high fluxes of fluoride release by cytoplasmic defluorinating enzymes.…”

Section: Scopementioning

confidence: 99%

Pseudomonas: versatile biocatalysts for PFAS

Wackett

2022

Environmental Microbiology

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Current research on simultaneous oxidation of aliphatic and aromatic hydrocarbons by bacteria of genus Pseudomonas

Cited by 16 publications

References 108 publications

Pseudomonas veronii strain 7–41 degrading medium-chain n-alkanes and polycyclic aromatic hydrocarbons

Pseudomonas veronii strain 7–41 degrading medium-chain n-alkanes and polycyclic aromatic hydrocarbons

Potential of Indigenous Strains Isolated from the Wastewater Treatment Plant of a Crude Oil Refinery

Pseudomonas: versatile biocatalysts for PFAS

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