Article Dans Une Revue Soil Biology and Biochemistry Année : 2006

Use of an avoidance test for the assessment of microbial degradation of PAHs

Résumé

An avoidance test using the soil springtail Folsomia candida was used to assess changes in contamination levels at low doses of PAHs following incubation with indigenous microflora. A soil from a former coke site was diluted to 1% in an unpolluted soil from the same site, which was used as a control, then both substrates were remoistened to 80% field capacity. The diluted soil was previously shown to be strongly repellent to F. candida, although not toxic. After 2-month incubation at 20 degrees C, the mixture lost its repellence capacity and became attractive to the test animal, while the global 16 PAHs content had decreased to a great extent (50%). PAH disappearance was linked to the occurrence of indigenous microbiota able to degrade hydrocarbons.

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hal-00495395 , version 1 (25-06-2010)

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Christine Lors, Maite Martínez Aldaya, Sandrine Salmon, Jean-François Ponge. Use of an avoidance test for the assessment of microbial degradation of PAHs. Soil Biology and Biochemistry, 2006, 38 (8), pp.2199-2204. ⟨10.1016/j.soilbio.2006.01.026⟩. ⟨hal-00495395⟩
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