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Oil (crude petroleum) is the most common pollutant that adversely affects and deteriorates the soil environment. Our study is based on the assessment of the effects of various concentrations of oil on the survival and growth of soil fungi. The research carried out in this regard included, the selection of oil, sampling of oil- polluted soils, characterization of soil, simulated oil pollution of the soil, isolation, identification, characterization and screening of the fungal isolates. Viability tests were performed to check the survival of the fungi exposed to various concentrations of oil. Assessment of oil biodegradation was carried out by modified brown paper assay. The growth pattern and resistance potential of these isolates in varying concentrations of oil, benomyl (fungicide) and at increasing temperatures were also determined. Majority of the isolated fungi showed their growth in oil, utilizing it as a sole source of carbon. Changes in the growth pattern of these fungal isolates were also observed. It clearly indicates the potential of these fungi to be used for the bioremediation of the oil-contaminated sites without any nutrient amendment. These fungi also showed resistance against heavy metals, benomyl and high temperatures. This insinuates the importance of these stress resistant isolates in multipurpose biotechnological studies as well as in the remediation of the environment, polluted with toxicants other than oil i.e. pesticides and heavy metals etc.
Rabia Ashraf and Tasneem A. Ali. (2006) EFFECT OF OIL (CRUDE PETROLEUM) ON THE SURVIVAL AND GROWTH OF SOIL FUNGI, , Volume 3, Issue 1.
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