Biodegradation of environmental pollutants by the white rot fungus <i>Phanerochaete chrysosporium</i>: Involvement of the lignin degrading system

Bumpus, John A.; Aust, Steven D.

doi:10.1002/bies.950060405

Cited by 246 publications

(142 citation statements)

References 22 publications

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“…Congo red is the sodium salt of benzidinediazo-bis-1-naphthylamine-4-sulfonic acid (formula: and Manganese Peroxidases (MnP), or at least one of these enzymes (13). The lignin-degrading system of these fungi is able to degrade a wide range of structurally diverse organic pollutants (8). Although azo dyes are generally considered to be nonbiodegradable under aerobic conditions, we hypothesized that the nonspecific nature of the lignindegrading system could reasonably be expected to be effective in degrading these dyes.…”

Section: Introductionmentioning

confidence: 99%

Mycoremediation of Congo red dye by filamentous fungi

Bhattacharya¹,

Mangai.²,

Vignesh.³

et al. 2011

Braz. J. Microbiol.

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Azo, anthroquinone and triphenylmethane dyes are the major classes of synthetic colourants, which are difficult to degrade and have received considerable attention. Congo red, a diazo dye, is considered as a xenobiotic compound, and is recalcitrant to biodegradative processes. Nevertheless, during the last few years it has been demonstrated that several fungi, under certain environmental conditions, are able to transfer azo dyes to non toxic products using laccases. The aim of this work was to study the factors influencing mycoremediation of Congo red. Several basidiomycetes and deuteromycetes species were tested for the decolourisation of Congo red (0.05 g/l) in a semi synthetic broth at static and shaking conditions. Poor decolourisation was observed when the dye acted as the sole source of nitrogen, whereas semi synthetic broth supplemented with fertilizer resulted in better decolourisation. Decolourisation of Congo red was checked in the presence of salts of heavy metals such as mercuric chloride, lead acetate and zinc sulphate.Decolourisation parameters such as temperature, pH, and rpm were optimized and the decolourisation obtained at optimized conditions varied between 29.25-97.28% at static condition and 82.1-100% at shaking condition. Sodium dodecyl sulphate polyacrylamide gel electrophoretic analysis revealed bands with molecular weights ranging between 66.5 to 71 kDa, a characteristic of the fungal laccases. High efficiency decolourisation of Congo red makes these fungal forms a promising choice in biological treatment of waste water containing Congo red.

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Section: Introductionmentioning

confidence: 99%

Mycoremediation of Congo red dye by filamentous fungi

Bhattacharya¹,

Mangai.²,

Vignesh.³

et al. 2011

Braz. J. Microbiol.

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“…The idea of using fungi for environmental bioremediation sets its basis in the late 80's (Bumpus and Aust 1987), when a direct connection between the degradation of aromatic compounds and the fungal enzymatic pattern involved in the delignification of wood was hypothesized for the first time.…”

Section: Fungal Treatmentmentioning

confidence: 99%

Fungal Bioremediation of Emerging Micropollutants in Municipal Wastewaters

Spina

Varese

2016

Fungal Applications in Sustainable Environmental Biotechnology

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“…The enzyme systems of the white rot fungi include a group of non-specific extra cellular enzymes, which catalyze degradation of several aromatic and halogenated dye compounds (Bumpus & Aust, 1987). The enzymatic systems of Phanerocheate chrysosporium have also been considered responsible for azo dye degradation (Paszczynski et al, 1986, Cripps et al, 1990, Paszczynski & Crawford, 1991.…”

Section: Moturi and Singara Charya (Swj):28-33mentioning

confidence: 99%

Decolourisation of Crystal Violet and Malachite Green By Fungi

Moturi¹,

Charya²

2010

Science World Journal

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Decolourisation of crystal violet and malachite green by white rot fungi, Polyporus elegans, Trametes versicolor, Lenzites betulina and soil fungus Mucor mucedo isolated from dye effluent amended soils was studied. There was no toxic effect of crystal violet on the growth of the four fungi but malachite green showed retardation of growth. Mucor mucedo decolourised 78% of the crystal violet and 65% of malachite green. The white rot fungi showed more than 60% decolourisation of crystal violet and 26 to 57% decolourisation of malachite green. In the process of decolourisation, lignin peroxidase production was high at 15 days incubation by all the organisms. Manganese peroxidase was secreted more after 10 days of incubation and laccase production was high after 15 days of incubation by Polyporus elegans and Trametes versicolor and after 10 days in the case of Lengites betulina. Mucor mucedo failed to secrete manganese peroxidase and laccase in all its incubations.

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Biodegradation of environmental pollutants by the white rot fungus Phanerochaete chrysosporium: Involvement of the lignin degrading system

Cited by 246 publications

References 22 publications

Mycoremediation of Congo red dye by filamentous fungi

Mycoremediation of Congo red dye by filamentous fungi

Fungal Bioremediation of Emerging Micropollutants in Municipal Wastewaters

Decolourisation of Crystal Violet and Malachite Green By Fungi

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