International Journal of Biochemistry and Biotechnology
International Journal of Biochemistry and Biotechnology ISSN 2169-3048 Vol. 11 (4), pp. 001-004, April, 2022. © International Scholars Journals
Full Length Research Paper
Bioremediation of engine-oil polluted soil by Pleurotus tuber-regium Singer, a Nigerian white-rot fungus
Adenipekun, Clementina Oyinkansola
Department of Botany and Microbiology, University of Ibadan, Ibadan, Nigeria. E-mail: email@example.com. Tel:
08033683516, 08055265186. Fax: 234- 02-8103043.
Accepted 07 January, 2022
White-rot fungi have been used in various parts of the world for bioremediation of polluted sites. Pleurotus tuber-regium was noted to have the ability to increase nutrient contents in soils polluted with 1 - 40% engine-oil concentration after six months of incubation. P. tuber-regium increased organic matter, carbon and available potassium 5.19%, 2.99% and 0.97 meq/100 g respectively compared to 4.41%, 2.56% carbon and 0.66 meq/100 g, respectively in the control. However, higher values of 0.32% nitrogen, 11.42 ppm phosphorus and pH 6.94 were obtained in the control compared to 0.16% nitrogen, 9.32 ppm phosphorus and pH 5.93 in soils incubated with the fungus. The fungus brought about an increase in copper content in engine oil polluted soils at 10% concentration followed by a decrease at 20 and 40% concentrations. Bioaccumulation of zinc and nickel was recorded at 20% engine-oil concentrations.
Key words: Bioremediation, engine-oil polluted soil, nutrient contents, heavy metals, white-rot fungi.
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