The white rot fungus Phanerochaete chrysosporium degraded DDT [1,1,-bis(4-chlorophenyl)-2,2,2-trichloroethane], 3,4,3',4'-tetrachlorobiphenyl, 2,4,5,2',-4',5'-hexachlorobiphenyl, 2,3,7,8-tetrachlorodibenzo-p-dioxin, lindane (1,2,3,4,5,6-hexachlorocylohexane), and benzo[a]pyrene to carbon dioxide. Model studies, based on the use of DDT, suggest that ability metabolize these compounds is dependent extracellular lignin-degrading enzyme system this fungus.

Biodegradation of Orange II, Tropaeolin O, Congo Red, and Azure B in cultures the white rot fungus, Phanerochaete chrysosporium, was demonstrated by decolarization culture medium, extent which determined monitoring decrease absorbance at or near wavelength maximum for each dye. Metabolite formation also monitored. Decolorization these dyes most extensive ligninolytic cultures, but substantial decolorization occurred nonligninolytic cultures. Incubation with crude lignin peroxidase resulted...

The ability of the white rot fungus Phanerochaete chrysosporium to degrade polycyclic aromatic hydrocarbons (PAHs) that are present in anthracene oil (a distillation product obtained from coal tar) was demonstrated. Analysis by capillary gas chromatography and high-performance liquid showed at least 22 PAHs, including all most abundant PAH components oil, underwent 70 100% disappearance during 27 days incubation with nutrient nitrogen-limited cultures this fungus. Because phenanthrene is...

Biodegradation of crystal violet (N,N,N',N',N'',N''-hexamethylpararosaniline) in ligninolytic (nitrogen-limited) cultures the white rot fungus Phanerochaete chrysosporium was demonstrated by disappearance and identification three metabolites (N,N,N',N',N''-pentamethylpararosaniline, N,N,N',N''-tetramethylpararosaniline, N,N',N''-trimethylpararosaniline) formed sequential N-demethylation parent compound. Metabolite formation also occurred when incubated with extracellular fluid obtained from...

Extensive biodegradation of pentachlorophenol (PCP) by the white rot fungus Phanerochaete chrysosporium was demonstrated disappearance and mineralization [14C]PCP in nutrient nitrogen-limited culture. Mass balance analyses formation water-soluble metabolites during degradation. Involvement lignin-degrading system this suggested fact time onset, course, eventual decline rate PCP were similar to those observed for [14C]lignin Also, a purified ligninase shown be able catalyze initial oxidation...

Extensive biodegradation of 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane (DDT) by the white rot fungus Phanerochaete chrysosporium was demonstrated disappearance and mineralization [14C]DDT in nutrient nitrogen-deficient cultures. Mass balance studies formation polar water-soluble metabolites during degradation. Hexane-extractable identified gas chromatography-mass spectrometry included 1,1,-dichloro-2,2-bis(4-chlorophenyl)ethane (DDD), 2,2,2-trichloro-1,1-bis(4-chlorophenyl)ethanol...

Extensive biodegradation of TNT (2,4,6-trinitrotoluene) by the white rot fungus Phanerochaete chrysosporium was observed. At an initial concentration 1.3 mg/liter, 35.4 +/- 3.6% [14C]TNT degraded to 14CO2 in 18 days. The addition glucose 12 days after did not stimulate mineralization, and, incubation with only, about 3.3% could be recovered. Mineralization adsorbed on soil also examined. Ground corncobs served as nutrient for slow but sustained degradation such that 6.3 0.6% initially...

Abstract The white‐rot fungus Phanrochaete chrysosporium has the ability to degrade a wide variety of structurally diverse organic compounds, including number environmentally persistent organopollutants. unique biodegradative abilities this appears be dependent upon its lignin‐degrading system. non‐specific and partially extracellular nature system suggests that it may useful as supplementary means treat organochemical wastes.

Instructional interest at the undergraduate and graduate levels in computational quantum chemistry molecular modeling as it applies to environmentally important processes is increasing. This a reflection of research this emerging area. We describe detail data handling, construction thermodynamic cycles, resolution standard-state conventions required compare theoretically predicted experimentally measured one- two-electron reduction potentials. achieved within context specific examples that...

The ability of Phanerochaete chrysosporium to degrade six alkyl halide insecticides (aldrin, dieldrin, heptachlor, chlordane, lindane, and mirex) in liquid soil-corncob matrices was compared by using 14C-labeled compounds. Of these, only [14C]lindane [14C]chlordane underwent extensive biodegradation, as evidenced the fact that 9.4 23.4% these compounds were degraded 14CO2 30 days cultures 60 inoculated with P. chrysosporium. Although [14C]aldrin, [14C]dieldrin, [14C]heptachlor, [14D]mirex...

The azo dye Congo Red, was degraded extensively by the wood rotting basidiomycete, Phanerochaete chrysosporium in agitated liquid cultures and solid malt agar cultures. Upon addition of Red to cultures, adsorbed mycelial pellets both ligninolytic non-ligninolytic followed extensive degradation only This fungus, grown from conidiospores, readily up 718 μM (500 mg/l) 2.0% agar. Decolorization plates suppressed supplemental nutrient nitrogen indicating that lignin degrading system P. may be...

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTJ. Chem. Educ. 2004, 81, 596–604Donald G. Truhlar , Christopher J. Cramer Anne Lewis and John A. Bumpus View Author InformationDepartment of Chemistry Supercomputing Institute, University Minnesota, Minneapolis, MN 55455-0431Department Chemistry, Northern Iowa, Cedar Falls, IA 50614Cite this: 2007, 84, 6, 934Publication Date (Web):June 1, 2007Publication History Received3 August 2009Published online1 June 2007Published inissue 1...

Melamine toxicity in mammals has been attributed to the blockage of kidney tubules by insoluble complexes melamine with cyanuric acid or uric acid. Bacteria metabolize via three consecutive deamination reactions generate The second reaction, which ammeline is substrate, common many bacteria, but genes and enzymes responsible have not previously identified. Here, we combined bioinformatics experimental data identify guanine deaminase as enzyme for this biotransformation. degradation phenotype...

The explosives TNT, HMX, and RDX are integral components of many munitions. wastes from the manufacture use these other has resulted in substantial contamination water soil. White rot fungi have been proposed for bioremediation contaminated soil water. Strains Phanerochaete chrysosporium Pleurotus ostreatus adapted to grow on high concentrations TNT were studied with regard their ability degrade liquid cultures. Both strains able cause extensive degradation TNT. Field studies using P....

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRemediation of Water Contaminated with an Azo Dye: An Undergraduate Laboratory Experiment Utilizing Inexpensive Photocatalytic ReactorMatthew Tatarko , Jennifer Tricker Ken Andrzejewski John A. Bumpus and Heather Rhoads View Author Information Department Biological Sciences Center for Bioengineering Pollution Control, University Notre Dame, IN 46556 Marian High School, Mishawaka, 46544 Chemistry The Environmental Science Program, Northern Iowa,...

The cage compound CL-20 (a.k.a., 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane, HNIW, or 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.0 3,11 .0 5,9 ]dodecane) is a well-studied high-energy-density material (HEDM). high positive gas- <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:msub><mml:mrow><mml:mi...