Genome Analysis and Physiology of Pseudomonas sp. Strain OVF7 Degrading Naphthalene and n-Dodecane

Ivanova, Anastasia A.; Сазонова, О. И.; Zvonarev, Anton; Delegan, Yanina; Streletskii, Rostislav; Shishkina, L. A.; Богун, А. Г.; Vetrova, Anna

doi:10.3390/microorganisms11082058

Cited by 3 publications

(2 citation statements)

References 81 publications

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“…Many studies reported that some microorganisms can degrade both PAHs and alkanes [ 21 , 22 ]. Moreover, many studies found that some microorganisms included the PAH and alkane degradation genes, such as benzene, toluene, ethylbenzene, xylene, and naphthalene, can be linked to similar genes, and isolated the function microorganisms in different environments [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, many studies found that some microorganisms included the PAH and alkane degradation genes, such as benzene, toluene, ethylbenzene, xylene, and naphthalene, can be linked to similar genes, and isolated the function microorganisms in different environments [ 23 , 24 ]. For example, Ivanova et al reported that Paraburkholderia aromaticivorans strain BN5 included a total of 29 monooxygenase and 54 dioxygenase genes related to the biodegradation of different hydrocarbons [ 21 ]. Therefore, the utilization of the microorganisms that degraded the PAHs has been a focus worldwide.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Polycyclic Aromatic Hydrocarbons on the Composition of the Soil Bacterial Communities in the Tidal Flat Wetlands of the Yellow River Delta of China

Qi,

Wu,

Zhi

et al. 2024

Microorganisms

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Polycyclic aromatic hydrocarbons (PAHs) are pervasive organic pollutants in coastal ecosystems, especially in tidal flat wetlands. However, the mechanisms through which PAHs impact the soil bacterial communities of wetlands featuring a simple vegetation structure in the Yellow River Delta (China) remain largely unclear. In this study, we examined soil samples from two sites featuring a single vegetation type (Suaeda salsa) in the Yellow River Delta. Specifically, we investigated the impacts of PAHs on the diversity and composition of soil bacteria communities through high-throughput 16 S rRNA sequencing. PAHs significantly increased the soil organic carbon content but decreased the total phosphorus content (p = 0.02). PAH contamination notably reduced soil bacterial community α diversity (Shannon index) and β diversity. Furthermore, PAHs significantly altered the relative abundance of bacterial phyla, classes, and genera (p < 0.05). Specifically, PAHs increased the relative abundance of the bacterial phyla Acidobacteriota and Gemmatimonadota (p < 0.05), while decreasing the relative abundance of Bacteroidota, Desulfobacterota, and Firmicutes compared to the control wetland (p < 0.05). Moreover, PAHs and certain soil properties [total nitrogen (TN), soil organic carbon (SOC), total phosphorus (TP), and total salt (TS)] were identified as key parameters affecting the community of soil bacteria, with the abundance of specific bacteria being both negatively and positively affected by PAHs, SOC, and TN. In summary, our findings could facilitate the identification of existing environmental problems and offer insights for improving the protection and management of tidal flat wetland ecosystems in the Yellow River Delta of China.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Polycyclic Aromatic Hydrocarbons on the Composition of the Soil Bacterial Communities in the Tidal Flat Wetlands of the Yellow River Delta of China

Qi,

Wu,

Zhi

et al. 2024

Microorganisms

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Bacteria degrading both n-alkanes and aromatic hydrocarbons are prevalent in soils

Brzeszcz,

Steliga,

Ryszka

et al. 2023

Environ Sci Pollut Res

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This study was undertaken to determine the distribution of soil bacteria capable of utilizing both n-alkanes and aromatic hydrocarbons. These microorganisms have not been comprehensively investigated so far. Ten contaminated (4046–43,861 mg of total petroleum hydrocarbons (TPH) kg−1 of dry weight of soil) and five unpolluted (320–2754 mg TPH kg−1 of dry weight of soil) soil samples from temperate, arid, and Alpine soils were subjected to isolation of degraders with extended preferences and shotgun metagenomic sequencing (selected samples). The applied approach allowed to reveal that (a) these bacteria can be isolated from pristine and polluted soils, and (b) the distribution of alkane monooxygenase (alkB) and aromatic ring hydroxylating dioxygenases (ARHDs) encoding genes is not associated with the contamination presence. Some alkB and ARHD genes shared the same taxonomic affiliation; they were most often linked with the Rhodococcus, Pseudomonas, and Mycolicibacterium genera. Moreover, these taxa together with the Paeniglutamicibacter genus constituted the most numerous groups among 132 culturable strains growing in the presence of both n-alkanes and aromatic hydrocarbons. All those results indicate (a) the prevalence of the hydrocarbon degraders with extended preferences and (b) the potential of uncontaminated soil as a source of hydrocarbon degraders applied for bioremediation purposes.

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N-Alkane Assimilation by Pseudomonas aeruginosa and Its Interactions with Virulence and Antibiotic Resistance

Libisch

2024

Antibiotics

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Pseudomonas aeruginosa strains with potential for degrading n-alkanes are frequently cultured from hydrocarbon-contaminated sites. The initial hydroxylation step of long-chain n-alkanes is mediated by the chromosomally encoded AlkB1 and AlkB2 alkane hydroxylases. The acquisition of an additional P. putida GPo1-like alkane hydroxylase gene cluster can extend the substrate range assimilated by P. aeruginosa to <C12 n-alkanes. Efficient niche colonization of hydrocarbon-contaminated sites is facilitated by avid iron-uptake systems, such as pyoverdine, and the production of several compounds with antimicrobial activities. A GPo1-like gene cluster can facilitate detoxification and solvent tolerance in P. aeruginosa. The overproduction of various multidrug efflux pumps, in particular, the MexAB-OprM system, can also contribute to solvent tolerance, which is often associated with reduced susceptibility or full resistance to certain clinically relevant antibiotics. These characteristics, together with the remarkable conservation of P. aeruginosa virulence determinants among human, animal, and environmental isolates, necessitate further studies from a One Health perspective into the acquired antibiotic resistance mechanisms of environmental P. aeruginosa strains and possible ways for their dissemination into the human population.

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Genome Analysis and Physiology of Pseudomonas sp. Strain OVF7 Degrading Naphthalene and n-Dodecane

Cited by 3 publications

References 81 publications

Effects of Polycyclic Aromatic Hydrocarbons on the Composition of the Soil Bacterial Communities in the Tidal Flat Wetlands of the Yellow River Delta of China

Effects of Polycyclic Aromatic Hydrocarbons on the Composition of the Soil Bacterial Communities in the Tidal Flat Wetlands of the Yellow River Delta of China

Bacteria degrading both n-alkanes and aromatic hydrocarbons are prevalent in soils

N-Alkane Assimilation by Pseudomonas aeruginosa and Its Interactions with Virulence and Antibiotic Resistance

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