Degradation of pyrene by indigenous fungi from a former gasworks site
Ambujom Saraswathy,Rolf Hallberg +1 more
TLDR
Indigenous fungi isolated from soil of a former gasworks site were investigated in submerged cultures with pyrene as the sole carbon source for the first time, and may be ideal candidates for effective bioremediation of polycyclic aromatic hydrocarbons.Abstract:
Indigenous fungi isolated from soil of a former gasworks site were investigated in submerged cultures with pyrene as the sole carbon source. Five fungal strains capable of degrading pyrene included one strain of Trichoderma harzianum and four strains with characteristics of the genus Penicillium. These are identified as Penicillium simplicissimum, Penicillium janthinellum, Penicillium funiculosum and Penicillium terrestre. A maximum of 75% of 50 mg l−1 and 67% of 100 mg l−1 of pyrene was removed by the fast degrading strain P. terrestre at 22°C during 28 days of incubation. The slower degrader P. janthinellum was able to remove 57% of 50 mg l−1 and about 31.5% of 100 mg l−1 pyrene. Degradation of pyrene is directly correlated with biomass development. To the best of our knowledge, this is the first time that fungi have been reported to use pyrene as the sole carbon and energy source. They may be ideal candidates for effective bioremediation of polycyclic aromatic hydrocarbons.read more
Citations
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Journal ArticleDOI
Geomycology: biogeochemical transformations of rocks, minerals, metals and radionuclides by fungi, bioweathering and bioremediation
TL;DR: This article seeks to emphasize the fundamental importance of fungi in several key areas including organic and inorganic transformations and element cycling, rock and mineral transformations, bioweathering, mycogenic mineral formation, fungal-clay interactions, metal-fungal interactions, and the significance of such processes in the environment and their relevance to areas of environmental biotechnology such as bioremediation.
Journal ArticleDOI
Antagonistic fungi, trichoderma spp.: panoply of biological control
TL;DR: This review focuses on Trichoderma spp.
Journal ArticleDOI
Potential of Penicillium Species in the Bioremediation Field
TL;DR: Several studies conducted with different strains of imperfecti fungi, Penicillium spp.
Journal ArticleDOI
Bacterial metabolism of polycyclic aromatic hydrocarbons: strategies for bioremediation.
TL;DR: Important strategies adopted for PAH bioremediation are summarized, the potential for their improvement is discussed and several approaches such as improvement in PAH solubilization and entry into the cell, pathway and enzyme engineering and control of enzyme expression etc are discussed.
Journal ArticleDOI
Bioremediation of an aged hydrocarbon-contaminated soil by a combined system of biostimulation–bioaugmentation with filamentous fungi ☆
M. E. Mancera-Lopez,F. Esparza-Garcia,B. Chavez-Gomez,Refugio Rodríguez-Vázquez,Gerardo Saucedo-Castañeda,J. Barrera-Cortés +5 more
TL;DR: In this article, the effect of a combined biostimulation-bioaugmentation treatment applied to a silty-loam soil polluted with a complex mixture of total petroleum hydrocarbons (TPH) was investigated.
References
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Journal ArticleDOI
ES&T Special Report: Priority pollutants: I-a perspective view
Larry. Keith,William A. Telliard +1 more
Journal ArticleDOI
Degradation and mineralization of high-molecular-weight polycyclic aromatic hydrocarbons by defined fungal-bacterial cocultures
TL;DR: Inoculation of fungal-bacterial cocultures into PAH-contaminated soil resulted in significantly improved degradation of high-molecular-weight PAHs, benzo[a]pyrene mineralization, and reduction in the mutagenicity of organic soil extracts, compared with the indigenous microbes and soil amended with only axenic inocula.
Book ChapterDOI
Microbial metabolism of polycyclic aromatic hydrocarbons.
TL;DR: Studies on PAH metabolism are entering a new era; biochemical genetic techniques such as gene cloning and transposon mutagenesis will provide new insight into the biochemistry and regulation of PAH degradative pathways.
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