Potency of Phlebia species of white rot fungi for the aerobic degradation, transformation and mineralization of lindane

Xiao, Pengfei; Kondo, Ryuichiro

doi:10.1007/s12275-020-9492-x

Cited by 14 publications

(6 citation statements)

References 45 publications

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“…Growth inhibition ranging from 3.68 to 40.1% were found among 10 white-rot fungi evaluated by Bisht et al [25], cultured in soil extract agar containing 100 mg L − 1 of endosulfan. Dealing with four strains of the basidiomycete genus Phlebia, Xiao & Kondo [26] observed growth inhibition from 30 to 60.3% in PDA medium with 50 mg L − 1 of lindane. Only Pleurotus sp.…”

Section: Discussionmentioning

confidence: 99%

Biodegradation of atrazine and ligninolytic enzyme production by basidiomycete strains

et al. 2020

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Background: Atrazine is one of the most widespread chlorinated herbicides, leaving large bulks in soils and groundwater. The biodegradation of atrazine by bacteria is well described, but many aspects of the fungal metabolism of this compound remain unclear. Thus, we investigated the toxicity and degradation of atrazine by 13 rainforest basidiomycete strains. Results: In liquid medium, Pluteus cubensis SXS320, Gloelophyllum striatum MCA7, and Agaricales MCA17 removed 30, 37, and 38%, respectively, of initial 25 mg L − 1 of the herbicide within 20 days. Deficiency of nitrogen drove atrazine degradation by Pluteus cubensis SXS320; this strain removed 30% of atrazine within 20 days in a culture medium with 2.5 mM of N, raising three metabolites; in a medium with 25 mM of N, only 21% of initial atrazine were removed after 40 days, and two metabolites appeared in culture extracts. This is the first report of such different outcomes linked to nitrogen availability during the biodegradation of atrazine by basidiomycetes. The herbicide also induced synthesis and secretion of extracellular laccases by Datronia caperata MCA5, Pycnoporus sanguineus MCA16, and Polyporus tenuiculus MCA11. Laccase levels produced by of P. tenuiculus MCA11 were 13.3fold superior in the contaminated medium than in control; the possible role of this enzyme on atrazine biodegradation was evaluated, considering the strong induction and the removal of 13.9% of the herbicide in vivo. Although 88% of initial laccase activity remained after 6 h, no evidence of in vitro degradation was observed, even though ABTS was present as mediator. Conclusions: This study revealed a high potential for atrazine biodegradation among tropical basidiomycete strains. Further investigations, focusing on less explored ligninolytic enzymes and cell-bound mechanisms, could enlighten key aspects of the atrazine fungal metabolism and the role of the nitrogen in the process.

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Section: Discussionmentioning

confidence: 99%

Biodegradation of atrazine and ligninolytic enzyme production by basidiomycete strains

et al. 2020

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“…Fungi can oxidize PAHs to quinones by secreting ligninolytic enzymes into the extracellular compartment, and then PAHs are degraded by hydrogenation and dehydration [46]. PB is a common cytochrome P450s inhibitor that has been used in many studies to determine if cytochrome P450s is involved in the degradation of organic pollutants [37,[47][48][49]. After 8 days of incubation, the degradation rate of BaP was about 33% and PB had no effect on the degradation of BaP (Figure 5).…”

Section: Bap Degradation Effects Of Cytochrome P450s On Bap Degradati...mentioning

confidence: 99%

Biodegradation of Benzo[a]pyrene by a White-Rot Fungus Phlebia acerina: Surfactant-Enhanced Degradation and Possible Genes Involved

Zhang,

Li,

Wang

et al. 2023

JoF

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Polycyclic aromatic hydrocarbons (PAHs) are persistent environmental pollutants that pose a threat to human health. Among these PAHs, benzo[a]pyrene (BaP), a five-ring compound, exhibits high resistance to biodegradation. White-rot fungus Phlebia acerina S-LWZ20190614-6 has demonstrated higher BaP degradation capabilities compared with Phanerochaete chrysosporium and P. sordida YK-624, achieving a degradation rate of 57.7% after 32 days of incubation under a ligninolytic condition. To further enhance the biodegradation rate, three nonionic surfactants were used, and the addition of 1 or 2 g·L−1 of polyethylene glycol monododecyl ether (Brij 30) resulted in nearly complete BaP biodegradation by P. acerina S-LWZ20190614-6. Interestingly, Brij 30 did not significantly affect the activity of manganese peroxidase and lignin peroxidase, but it did decrease laccase activity. Furthermore, the impact of cytochrome P450 on BaP degradation by P. acerina S-LWZ20190614-6 was found to be relatively mild. Transcriptomic analysis provided insights into the degradation mechanism of BaP, revealing the involvement of genes related to energy production and the synthesis of active enzymes crucial for BaP degradation. The addition of Brij 30 significantly upregulated various transferase and binding protein genes in P. acerina S-LWZ20190614-6. Hence, the bioremediation potential of BaP by the white-rot fungus P. acerina S-LWZ20190614-6 holds promise and warrants further exploration.

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“…Fungi are generally more tolerant to high concentrations of contaminant chemicals than bacteria, and white rot fungi (WRF) have been especially well studied. In previous studies, WRF was able to oxidize a wider variety of refractory compounds, such as lindane, lignin, dichlorodiphenyltrichloroethane (DDT) ( Xiao et al, 2011b ; Hou et al, 2020 ; Xiao and Kondo, 2020 ). Therefore, WRF are potentially biodegradable fungi that are seen as a promising bioremediation agent, especially for compounds that are not easily degraded by bacteria.…”

Section: Degradation Of Aldrin and Dieldrinmentioning

confidence: 99%

Microbial Degradation of Aldrin and Dieldrin: Mechanisms and Biochemical Pathways

Pang

Lin

et al. 2022

Front. Microbiol.

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As members of the organochlorine group of insecticides, aldrin and dieldrin are effective at protecting agriculture from insect pests. However, because of excessive use and a long half-life, they have contributed to the major pollution of the water/soil environments. Aldrin and dieldrin have been reported to be highly toxic to humans and other non-target organisms, and so their use has gradually been banned worldwide. Various methods have been tried to remove them from the environment, including xenon lamps, combustion, ion conversion, and microbial degradation. Microbial degradation is considered the most promising treatment method because of its advantages of economy, environmental protection, and convenience. To date, a few aldrin/dieldrin-degrading microorganisms have been isolated and identified, including Pseudomonas fluorescens, Trichoderma viride, Pleurotus ostreatus, Mucor racemosus, Burkholderia sp., Cupriavidus sp., Pseudonocardia sp., and a community of anaerobic microorganisms. Many aldrin/dieldrin resistance genes have been identified from insects and microorganisms, such as Rdl, bph, HCo-LGC-38, S2-RDLA302S, CSRDL1A, CSRDL2S, HaRdl-1, and HaRdl-2. Aldrin degradation includes three pathways: the oxidation pathway, the reduction pathway, and the hydroxylation pathway, with dieldrin as a major metabolite. Degradation of dieldrin includes four pathways: oxidation, reduction, hydroxylation, and hydrolysis, with 9-hydroxydieldrin and dihydroxydieldrin as major products. Many studies have investigated the toxicity and degradation of aldrin/dieldrin. However, few reviews have focused on the microbial degradation and biochemical mechanisms of aldrin/dieldrin. In this review paper, the microbial degradation and degradation mechanisms of aldrin/dieldrin are summarized in order to provide a theoretical and practical basis for the bioremediation of aldrin/dieldrin-polluted environment.

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Potency of Phlebia species of white rot fungi for the aerobic degradation, transformation and mineralization of lindane

Cited by 14 publications

References 45 publications

Biodegradation of atrazine and ligninolytic enzyme production by basidiomycete strains

Biodegradation of atrazine and ligninolytic enzyme production by basidiomycete strains

Biodegradation of Benzo[a]pyrene by a White-Rot Fungus Phlebia acerina: Surfactant-Enhanced Degradation and Possible Genes Involved

Microbial Degradation of Aldrin and Dieldrin: Mechanisms and Biochemical Pathways

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