Mineralization of benzo[a]pyrene by Marasmiellus troyanus, a mushroom isolated from a toxic waste site.
Mycelia from the mushroom Marasmiellus troyanus were grown in the presence of radiolabeled benzo[a]pyrene in liquid culture. After 15 days, 8.1% of the label from M. troyanus cultures was recovered in CO2 as compared to 1.1% for Phanerochaete chrysosporium and 0.2% for Aspergillus niger. M. troyanus efficiently transformed B[a]P into water soluble metabolites with 64% of the label recovered in the water soluble fraction as compared to 11.7% for P. chrysosporium and 4.1% for A. niger. Glucuronic acid and sulfate conjugates of B[a]P were identified from the aqueous fraction of cultures of M. troyanus, after 17 days.
Wunch
K G
KG
Department of Cell and Molecular Biology, Tulane University, New Orleans, LA 70118, USA. kwunch@mailhost.tcs.tulane.edu
Alworth
W L
WL
Bennett
J W
JW
D001234:Aspergillus niger / Q000378:metabolism; D001580:Benzopyrenes / Q000378:metabolism*; D001673:Biodegradation, Environmental; D005658:Fungi / Q000378:metabolism*; D005942:Gluconates / Q000032:analysis; D013058:Mass Spectrometry; D020075:Phanerochaete / Q000378:metabolism; D012988:Soil Microbiology; D013431:Sulfates / Q000032:analysis; D013997:Time Factors
D001580:Benzopyrenes; D005942:Gluconates; D013431:Sulfates; C030691:gluconic acid