title: Bioremediation potential of basidiomycetes isolated from compost.
abstract: The potential of a consortium of three basidiomycete mycelia isolated from compost to degrade polycyclic aromatic hydrocarbons (PAH) was first evaluated using a test based on decolorization of Poly R-478 dye. When pre-grown on straw, the consortium decolorized the dye by 83% in 7 days and generated a laccase activity of 663 IU l(-1). Its ability to degrade naphthalene was investigated in soil microcosms specially suited for this volatile PAH. The kinetic study was conducted at a maximal naphthalene concentration of 500 mg kg(-1) of soil. Naphthalene concentration, CO(2) evolution and phytotoxicity (germination index, GI%) on Lepidium sativum seeds were monitored. The naphthalene concentration decreased by about 70% in three weeks in the presence of metabolic activity, while the GI% increased indicating reduced phytotoxicity.
authors.affiliation: Dipartimento di Biologia Vegetale, Università degli Studi di Torino, Viale Mattioli 25, 10125 Torino, Italy.
authors.forename: Antonella
authors.initials: A
authors.lastname: Anastasi
authors.forename: Giovanna C
authors.initials: GC
authors.lastname: Varese
authors.forename: Francesca
authors.initials: F
authors.lastname: Bosco
authors.forename: Fabiana
authors.initials: F
authors.lastname: Chimirri
authors.forename: Valeria Filipello
authors.initials: VF
authors.lastname: Marchisio
mesh_terms: D001487:Basidiomycota / Q000201:enzymology / Q000302:isolation & purification / Q000378:metabolism*; D003116:Color; D052918:Environmental Restoration and Remediation / Q000379:methods*; D007700:Kinetics; D042845:Laccase / Q000378:metabolism; D031220:Lepidium sativum / Q000196:embryology; D009281:Naphthalenes / Q000032:analysis / Q000633:toxicity; D011083:Polycyclic Compounds / Q000378:metabolism*; D012639:Seeds / Q000187:drug effects; D012987:Soil; D014835:Volatilization
chemical_list: D009281:Naphthalenes; D011083:Polycyclic Compounds; D012987:Soil; C031721:naphthalene; D042845:Laccase