A Decade of Research on Phytoremediation in North-East Italy: Lessons Learned and Future Directions pp. 137-184
Authors: (Luca Marchiol, Guido Fellet, Filip Pošćić, Giuseppe Zerbi, Dipartimento di Scienze Agrarie e Ambientali, Universitŕ di Udine, Udine, Italy)
Abstract: The interest in phytoremediation has been rapidly increasing in the last twenty years. A relevant number of scientific papers have investigated several aspects of the matter, first exploring the physiological processes and then the molecular characteristics of the plants to find the genes responsible for the metal (hyper)tolerance. Since 1998, our research group has had a number of projects concerning phytoremediation financed with public funds. In 2005, we designed the first Italian in situ experiment of phytoremediation. This trial took place within an area included into the polluted area Laguna di Grado e Marano (Grado and Marano lagoon) which belongs to the national priority list (Ministry Decree 468/2001). The experimental site was located on the property of an Italian chemical company in Torviscosa (Udine). Several aspects of phytoremediation were investigated, such as: (i) phytoextraction potential of Sorghum bicolor and Helianthus annuus; (ii) the growth of Populus spp. and Salix spp. and trace element uptake; (iii) strategies for the enhancement of metal absorption from the soil and for increasing the translocation rate in plants; (iv) metals‘ mobility and their availability to plants and pedofauna. All the aspects were investigated both under pot and field trial conditions.