Extent of humification of anthracene, fluoranthene, and benzo[α]pyrene by<i>Pleurotus ostreatus</i>during growth in PAH‐contaminated soils

Bogan, Bill W.; Lamar, Richard T.; Burgos, William D.; Tien, Ming

doi:10.1046/j.1365-2672.1999.00537.x

Cited by 48 publications

(18 citation statements)

References 35 publications

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“…No correlation was observed between water solubility and recovery of PAHs (64). Recently, P. ostreatus was found to catalyze the humification of anthracene, benzo-[a]pyrene, and fluoranthene in two PAH-contaminated soils, one from a former manufactured gas facility and another from an abandoned electric coking plant (12). The toxicity of PAHs to fungi is relatively low (48), and PAHs added to straw did not affect fungal growth and PAH degradation at concentrations of up to 250 ppm (64).…”

Section: Discussionmentioning

confidence: 99%

Influence of Cadmium and Mercury on Activities of Ligninolytic Enzymes and Degradation of Polycyclic Aromatic Hydrocarbons by Pleurotus ostreatus in Soil

Baldrián

Wiesche²,

Gabriel

et al. 2000

Appl Environ Microbiol

199

110

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The white-rot fungus Pleurotus ostreatus was able to degrade the polycyclic aromatic hydrocarbons ( anthracene (41%), the fungus enhanced the disappearance of less-soluble polycyclic aromatic compounds containing five or six aromatic rings. Although the heavy metals in the soil affected the activity of ligninolytic enzymes produced by the fungus (laccase and Mn-dependent peroxidase), no decrease in PAH degradation was found in soil containing Cd or Hg at 10 to 100 ppm. In the presence of cadmium at 500 ppm in soil, degradation of PAHs by soil microflora was not affected whereas the contribution of fungus was negligible, probably due to the absence of Mn-dependent peroxidase activity. In the presence of Hg at 50 to 100 ppm or Cd at 100 to 500 ppm, the extent of soil colonization by the fungus was limited.

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Section: Discussionmentioning

confidence: 99%

Influence of Cadmium and Mercury on Activities of Ligninolytic Enzymes and Degradation of Polycyclic Aromatic Hydrocarbons by Pleurotus ostreatus in Soil

Baldrián

Wiesche²,

Gabriel

et al. 2000

Appl Environ Microbiol

199

110

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“…DSM 44126 was able to degrade phenanthrene in liquid medium. While these studies did not show that peroxidases were responsible for degradation, a strong correlation between degradation of PAHs and ionisation potential in manganese peroxidaselipid peroxidation systems was indicated [110]. Furthermore, Lee et al [111] compared the ability of P. chrysosporium with that of Streptomyces spp.…”

Section: Degradation Of Major Pollutantsmentioning

confidence: 96%

Actinobacterial Peroxidases: an Unexplored Resource for Biocatalysis

Roes‐Hill

Khan

Burton

2011

Appl Biochem Biotechnol

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Peroxidases are redox enzymes that can be found in all forms of life where they play diverse roles. It is therefore not surprising that they can also be applied in a wide range of industrial applications. Peroxidases have been extensively studied with particular emphasis on those isolated from fungi and plants. In general, peroxidases can be grouped into haem-containing and non-haem-containing peroxidases, each containing protein families that share sequence similarity. The order Actinomycetales comprises a large group of bacteria that are often exploited for their diverse metabolic capabilities, and with recent increases in the number of sequenced genomes, it has become clear that this metabolically diverse group of organisms also represents a large resource for redox enzymes. It is therefore surprising that, to date, no review article has been written on the wide range of peroxidases found within the actinobacteria. In this review article, we focus on the different types of peroxidases found in actinobacteria, their natural role in these organisms and how they compare with the more well-described peroxidases. Finally, we also focus on work remaining to be done in this research field in order for peroxidases from actinobacteria to be applied in industrial processes.

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“…In addition, some fungi degrade PAHs via mechanism similar with mammals (using intracellular cytochrome P450 enzymes) (Barnforth and Singleton 2005;Cerniglia 1997). White rot fungi (WRF) are among the most extensively studied species for they are capable of degrading a wide range of xenobiotic compounds, including PAHs (Bogan et al 1999;Collins et al 1996;Pickard et al 1999). However, the colonization potential of WRF in soil is reported to be limited (Andersson et al 2001;McErlean et al 2006), and the depletion of PAHs by WRF may be hindered by limiting environmental factors (Tortella and Diez 2005).…”

Section: Introductionmentioning

confidence: 99%

Bioremediation of polycyclic aromatic hydrocarbons contaminated soil with Monilinia sp.: degradation and microbial community analysis

Luo

Zou

et al. 2007

Biodegradation

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Microcosms were set up with a PAHs-contaminated soil using biostimulation (addition of ground corn cob) and bioaugmentation (inoculated with Monilinia sp. W5-2). Degradation of polycyclic aromatic hydrocarbons and microbial community were examined at the end of incubation period. After 30 days, bioaugmented microcosms showed a 35+/-0% decrease in total PAHs, while biostimulated and control microcosms showed 16+/-9% and 3+/-0% decrease in total PAHs, respectively. Bioaugmented microcosms also revealed 70+/-8% and 72+/-2% decreases in benzo[a]pyrene and anthracene, respectively, while the values for biostimulated and control microcosms were much lower. Detoxification of soils in bioaugmented microcosms was confirmed by genetic toxicity assay, suggesting important role of fungal remediation. Molecular fingerprint profiles and selective enumeration showed biostimulation with ground corn cob increased both number and abundance of indigenous aromatic hydrocarbons degraders and changed microbial community composition in soil, which is beneficial to natural attenuation of PAHs. At the same time, bioaugmentation with Monilinia strain W5-2 imposed negligible effect on indigenous microbial community. This study suggests that fungal remediation is promising in eliminating PAHs, especially the part of recalcitrant and highly toxic benzo[a]pyrene, in contaminated soil. It is also the first description of soil bioremediation with Monilinia sp.

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Extent of humification of anthracene, fluoranthene, and benzo[α]pyrene byPleurotus ostreatusduring growth in PAH‐contaminated soils

Cited by 48 publications

References 35 publications

Influence of Cadmium and Mercury on Activities of Ligninolytic Enzymes and Degradation of Polycyclic Aromatic Hydrocarbons by Pleurotus ostreatus in Soil

Influence of Cadmium and Mercury on Activities of Ligninolytic Enzymes and Degradation of Polycyclic Aromatic Hydrocarbons by Pleurotus ostreatus in Soil

Actinobacterial Peroxidases: an Unexplored Resource for Biocatalysis

Bioremediation of polycyclic aromatic hydrocarbons contaminated soil with Monilinia sp.: degradation and microbial community analysis

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