Abstract
The bioavailability of polycyclic aromatic hydrocarbons (PAHs) in soil can be enhanced through a variety of microbial and plant functions, that can be incorporated into optimized bioremediation technologies. In this review, we examine the potential of (bio)surfactants, the chemotactic mobilization of pollutant-degrading bacteria, and the role of bacterial attachment, to enhance biodegradation of PAHs. Plants can also play an active role in enhancing bioavailability of PAHs through rhizosphere-related mechanisms associated to specific exudate components that affect bacterial chemotaxis, pollutant mobilization, and intra-aggregate bacterial growth.
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This study was supported by the Spanish Ministry of Science and Innovation (CGL2013-44554-R and CGL2016-77497-R), the Andalusian Government (RNM 2337), and the European Commission (LIFE15 ENV/IT/000396).
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Ortega-Calvo, J.J., Posada-Baquero, R., Garcia, J.L., Cantos, M. (2017). Bioavailability of Polycyclic Aromatic Hydrocarbons in Soil as Affected by Microorganisms and Plants. In: Lukac, M., Grenni, P., Gamboni, M. (eds) Soil Biological Communities and Ecosystem Resilience. Sustainability in Plant and Crop Protection. Springer, Cham. https://doi.org/10.1007/978-3-319-63336-7_19
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