Wet sand cultures to screen filamentous fungi for the biotransformation of polycyclic aromatic hydrocarbons |
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Authors: | Rachel Rama-Mercier Christian Mougin Jean-Claude Sigoillot Laurent Sohier Véronique Chaplain Marcel Asther |
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Institution: | (1) Division Réhabilitation de sites, KREBS Réseau Eurisys, 8 Rue Jean-Pierre, Timbaud Saint-Quentin-en-Yvelines, France;(2) Institut National de la Recherche Agronomique (INRA), Unité de Phytopharmacie et Médiateurs Chimiques, Route de Saint-Cyr Versailles, France |
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Abstract: | The biodegradation of phenanthrene and benzoa]pyrene was assayed in liquid and wet sand cultures in the presence of five filamentous fungi. In the controls, 85% volatilisation of phenanthrene occurred within 28 days in liquid cultures while it was only 50% in wet sand. In the later system, remaining phenanthrene and benzoa]pyrene amounted to 6–51 and 53–92% of their initial levels, respectively, according to the strains. Then, wet sand used as a screening tool evidenced Trametes versicolor and Cunninghamella elegans as the most efficient polycyclic aromatic hydrocarbons degraders among ten strains. © Rapid Science Ltd. 1998 |
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Keywords: | screening triphasic cultures filamentous fungi biodegradation organic pollutants |
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