Microbial transformation of technical mixtures of polychlorinated biphenyls (PCB) by the fungus
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Cited by (43)
Microbial remediation progress and future prospects
2020, Bioremediation of Pollutants: From Genetic Engineering to Genome EngineeringThe effect of chlorination degree and substitution pattern on the interactions of polychlorinated biphenyls with model bacterial membranes
2019, Biochimica et Biophysica Acta - BiomembranesCitation Excerpt :It was claimed in multiple papers that the disubstituted biphenyls are relatively easy degraded by aerobic soil bacteria [52]. However, other scientists claim that some of them, especially PCB 15, can be recalcitrant and can be treated as the dead-end products of the bacterial PCB degradation [53,54]. Our studies performed on model membranes proved that the di-para-substituted PCB 15 exhibits the highest affinity to the phospholipid molecules from all the PCB molecules investigated by us.
PCB in the environment: bio-based processes for soil decontamination and management of waste from the industrial production of Pleurotus ostreatus
2017, New BiotechnologyCitation Excerpt :Fungal PCB biodegradation has also been reported. Fungi with the capacity to transform several PCB congeners in liquid medium were described [7–13]. A few studies investigated fungal transformation capacity in soils [14–17].
Potential of non-ligninolytic fungi in bioremediation of chlorinated and polycyclic aromatic hydrocarbons
2015, New BiotechnologyCitation Excerpt :It is interesting to note that, unlike white-rot fungi that decreased the extent of PCB degradation through an increase in the number of chlorines, isolated ascomycetes appear to degrade individual PCBs at similar degradation rates regardless of chlorine number in both liquid medium and soil [8–10]. However, degradation of technical mixtures of PCBs (Chlophen A) by the non-ligninolytic fungus Aspergillus niger showed that only the mixture with the lowest total chlorine content (42% chlorine PCBs) was biodegradable, whereas the composition of PCBs with higher chlorination levels (54% and 60% chlorine PCBs) remained untransformed [11]. The only evidence on the degradation pathways of PCBs by non-white-rot fungi refers to the transformation of 4-chlorobiphenyl by the non-ligninolytic fungus Paecilomyces lilacinus [12].
Autochthonous ascomycetes in depollution of polychlorinated biphenyls contaminated soil and sediment
2014, ChemosphereCitation Excerpt :In addition, they exhibit an important metabolic capacity due to the low specificity of their extracellular and intracellular oxidoreductase enzymes that enable them to degrade organic compounds belonging to different pollutant classes (Harms et al., 2011). Despite their interesting biochemical potential, most studies on mycoremediation of PCBs were conducted in liquid systems in which the pollutants are easily bioavailable and the effectiveness of numerous white-rot fungi or some filamentous ascomycetous strains toward divers PCB congeners have been evidenced (Dmochewitz and Ballschmiter, 1988; Yadav et al., 1995; Beaudette et al., 1998; Ruiz-Aguilar et al., 2002; Mouhamadou et al., 2013). Although these studies led to the selection of efficient fungal strains with high biodegradation potential, they were not transferable to a field scale, thereby preventing to assess the actual ability of fungal strains in environmental technologies.
Microbial transformation and degradation of polychlorinated biphenyls
2008, Environmental PollutionCitation Excerpt :The white-rot fungus, Phlebia brevispora, degraded TeCBp, PeCBp and HCBp congeners to methoxylated intermediates as well as para-dechlorinated methoxylated intermediates (Kamei et al., 2006). Degradation of a PCB technical mixture (Chlophen A) by the filamentous fungus, Aspergillus niger, has also been reported (Dmochewitz and Ballschmiter, 1988). Of the three Chlophen mixtures tested (A30, A50 and A60 of 42, 54 and 60% chlorine content, respectively), only the mixture with the lowest total chlorine content was biodegradable.