Microbial communities could have considerable potential
to remedy oil-contaminated sediment and remove chrysene from
aqueous solution [10,11]. High-molecular-weight PAHs such as
chrysene and benzo[a]pyrene are hard to be biodegraded whereas
lower-molecular-weight PAHs such as phenanthrene and naphthalene
are efficiently degraded [12–14]. The efficiency in which PAHis
biodegraded in sediment differs from that in liquid medium. Some
reports showed that the biodegradation was reduced by sorption
to sediments as highly lipophilic PAHs tended to sorb tightly limiting
their availability to microorganisms [15,16]. In addition, fungi
also play an important role in the degradation of many chemicals,
including aromatic hydrocarbons. Fungal oxidation of aromatic
hydrocarbons results in the production of metabolites with higher
aqueous solubility and less biological reactivity than the parent
compound. However, several metabolites generally still toxic as
same as the parent compound. White rot fungi possess a number
of advantages not associated with other bioremediation systems.
The key components of their degrading system are extracellular
so the fungi can degrade compounds that are not easily taken up
by the cell such as lignin and many hazardous environmental pollutants
[17,18]. A diverse group of ligninolytic and non-ligninolytic
fungi have the ability to oxidize PAHs. Of these, a number of isolates
have been shown to transform chrysene to polar metabolites after