Abstract
Soil samples from an agricultural field contaminated with 10 ppm14C-benz(a)anthracene in glass tubes were brought into contact with cultures of wood-rotting fungi, precultivated on wheat straw substrate. Forty-five strains of white-rot fungi and four brown-rot fungi were tested for their ability to colonize the soil and to mineralize14C-benz(a)anthracene to14CO2 within a 20-week incubation time. Twenty-two white-rot fungi and all brown-rot fungi were unable to colonize the soil. Twenty-three strains of white-rot fungi, all belonging to the genusPleurotus, colonized the soil. During the experiment the noncolonizing fungi and their substrate disintegrated more and more to a nonstructured pulp from which water diffused into the soil. The same phenomenon was observed in the control which contained only straw without fungus and contaminated soil. In samples with colonizing fungi the substrate as well as the mycelia in the soil remained visibly unchanged during the entire experiment. Surprisingly, most samples with fungi not colonizing the soil and the control without fungus liberated between 40 and 58 % of the applied radioactivity as14CO2 whereas the samples with the colonizing fungi respired only 15–25 % as14CO2. This was 3–5 times more14CO2 than that liberated from the control (4.9 %) which contained only contaminated soil without straw and fungus. A similar result was obtained with selected colonizing and noncolonizing fungi and soil contaminated with 10 ppm14C-pyrene. However, in pure culture studies in which14C-pyrene was added to the straw substrate,Pleurotus sp. (P2), as a representative of the colonizing fungi, mineralized 40.3 % of the added radioactivity to14CO2. The noncolonizing fungiDichomitus squalens andFlammulina velutipes liberated only 17.2 or 1.7 %, respectively, as14CO2. These results lead to the hypothesis that the native soil microflora stimulated by the formed products of straw lysis is responsible for high degradation rates found with noncolonizing fungi.
Similar content being viewed by others
References
Bumpus J.A., Aust S.D.: Mineralization of recalcitrant environmental pollutants by a white rot fungus, pp. 146–151 inProc. Nat. Conf. Hazardous Wastes and Hazardous Materials. Hazardous Materials Control Research Institute, Silver Spring (Md) 1987.
Bumpus J.A., Tien M., Wright D., Aust S.D.: Oxidation of persistent environmental pollutants by a white rot fungus.Science 228, 1434–1436 (1985).
Cerniglia C.E., Campbell W.L., Freeman J.P., Evans F.E.: Identification of a novel metabolite in phenanthrene metabolism by the fungusCunninghamella elegans.Appl. Environ. Microbiol. 55, 2275–2279 (1989).
Cerniglia C.E., Gibson D.T.: Fungal oxidation of benzo(a)pyrene and (+)-trans-7,8-dihydroxy-7,8-dihydro-benzo(a)pyrene.J. Biol. Chem. 255, 5159–5163 (1980a).
Cerniglia C.E., Gibson D.T.: Fungal oxidation of (+)-9,10-dihydrobenzo(a)pyrene: Formation of diastereomeric benzo(a)-pyrene-9,10-diol-7,8-epoxides.Proc. Nat. Acad. Sci. USA 77, 4554–4558 (1980b).
Cerniglia C.E., Herbert R.L., Szaniszlo P.J., Gibson D.T.: Fungal transformation of naphthalene.Arch. Microbiol. 117, 135–143 (1978).
Cerniglia C.E., White G.L., Heflich R.H.: Fungal metabolism and detoxification of polycyclic aromatic hydrocarbons.Arch. Microbiol. 143, 105–110 (1985).
Davis M.W., Glaser J.A., Evans J.W., Lamar R.T.: Field evaluation of the lignin-degrading fungusPhanerochœte sordia to treat creosote-contaminated soil.Environ. Sci. Technol. 27, 2572–2576 (1993).
Eaton D.C.: Mineralization of polychlorinated biphenyls byPhanerochœte chrysosporium a lignolytic fungus.Enzyme Microb. Technol. 7, 194–196 (1985).
Kästner M., Mahro B., Wienberg R.:Hamburger Berichte, Band 5 (R. Stegmann, Ed.):Biologischer Schadstoffabbau in kontaminierten Böden unter besonderer Berücksichtigung der polycyclischen aromatischen Kohlenwasserstoffe. Economia Verlag, Bonn 1993.
Gibson D.T., Subramanian V.: Microbial degradation of aromatic hydrocarbons, pp. 184–252 inMicrobial Degradation of Organic Compounds (D.T. Gibson, Ed). Marcel Dekker, New York-Basel 1984.
Higson F.K.: Degradation of xenobiotics by white rot fungi, pp. 111–152 inReviews of Environmental Contamination and Toxicology (W.W. Ware, H.N. Nigg, A. Benvenue, Eds), Vol. 122. Springer, Berlin-Heidelberg-New York 1991.
Lamar R.T., Davis M.W., Dietrich D.M., Glaser J.A.: Treatment of a pentachlorophenol- and creosote-contaminated soil using the lignin-degrading fungusPhanerochœte sordia: A field demonstration.Soil Biol. Biochem. 26, 1603–1611 (1994).
Loske D., Hüttermann A., Majcherczyk A., Zadrazil F., Lorsen H.: Use of white rot fungi for the clean-up of contaminated sites, pp. 311–321 inAdvances in Biological Treatment of Lignocellulosic Materials (M.P. Coughlan, M.T.A. Collaco, Eds). Elsevier Applied Science, London 1990.
Mueller J.G., Chapman P.J., Blatimann B.O., Pritchard P.H.: Isolation and characterization of a fluoranthene-utilizing strain ofPseudomonas paucimobolis.Appl Environ. Microbiol. 56, 1076–1086 (1990).
Mueller J.G., Chapman P.J., Pritchard P.H.: Action of fluoranthene-utilizing bacterial community on polycyclic aromatic hydrocarbon components of creosote.Appl. Environ. Microbiol. 55, 3085–3090 (1989).
National Research Council: In SituBioremediation. When Does It Work? National Academy Press, Washington (DC) 1993.
Sanglard D., Leisola M.S.A., Fletscher A.: Role of extracellular ligninases in biodegradation of benzo(a)pyrene byPhanerochœte chrysosporium.Enzyme Microb. Technol. 8, 209–212 (1986).
Walter U., Beyer M., Klein J., Rehm H.J.: Degradation of pyrene byRhodococcus sp. UW1.Appl. Microbiol. Biotechnol. 34, 671–676 (1991).
Weissenfels W.D., Beyer M., Klein J.: Degradation of phenanthrene fluorene and fluoranthene by pure bacterial cultures.Appl. Microbiol. Biotechnol. 32, 479–484 (1990).
Weissenfels W.D., Beyer M., Klein J., Rehm H.J.: Microbial metabolism of fluoranthene: Isolation and identification of ring fission products.Appl. Microbiol. Biotechnol. 34 528–535 (1991).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Martens, R., Zadrazil, F. Screening of white-rot fungi for their ability to mineralize polycyclic aromatic hydrocarbons in soil. Folia Microbiol 43, 97–103 (1998). https://doi.org/10.1007/BF02815552
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02815552