Bioremediation of used engine-oil polluted soils with Ranunculus arvensis L. plant and its root associated fungi
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Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
Pollution of soils with used-engine oil is a common problem in both developmental and industrial countries. Prior research showed that there are petroleum-resistant plants and their root associated fungal strains which grow in petroleum and its derivate polluted soils. Bioremediation of engine oil contamination of soils is based on the stimulation of petroleum hydrocarbon-degrading fungal and microbial communities. Ranunculus arvensis L. (Ranunculaceae) is one of these that collected from an industrial garage in Hamedan. Root-associated fungi of the plant were determined, showing the presence of 16 species of which 8 were determined taxonomically. Eight fungal strains were also found in non-polluted soils that four ones were determined taxonomically. Bioremediation tests with R. arvensis, with and without the fungal strains, showed that joint application of the plant and its root associated fungal strains was more effective than of the plant and the fungi separately. The most effective fungal strains were Fusarium acuminatum and Trichoderma harizana with removing 57 and 69% respectively. Based on the results, the fungal strains had the main role in bioremediation of engine oil-polluted soils.
Language:
Persian
Published:
Journal of Plant Research, Volume:31 Issue: 1, 2018
Pages:
45 to 56
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