| Title | Plant-assisted bioremediation of a historically PCB and heavy metal-contaminated area in Southern Italy |
| Abstract | A plant-assisted bioremediation strategy was applied in an area located in Southern Italy, close to the city of Taranto, historically contaminated by polychlorinated biphenyls (PCBs) and heavy metals. A specific poplar clone (Monviso) was selected for its ability to promote organic pollutant degradation in the rhizosphere, as demonstrated elsewhere. Chemical and microbiological analyses were performed at the time of poplar planting in selected plots at different distances from the trunk (0.25-1m) and at different soil depths (0-20 and 20-40cm), at day 420. A significant decrease in PCB congeners and a reduction in all heavy metals was observed where the poplar trees were present. No evidence of PCB and heavy metal reduction was observed in the non poplar-vegetated soil. Microbial analyses (dehydrogenase activity, cell viability, microbial abundance) of the autochthonous microbial community showed an improvement in soil quality. In particular, microbial activity generally increased in the poplar-rhizosphere and a positive effect was observed in some cases at up to 1m distance from the trunk and up to 40cm depth. The Monviso clone was effective in promoting both a general decrease in contaminant occurrence and an increase in microbial activity in the chronically polluted area a little more than one year after planting. |
| Source | New biotechnology (Print) (38), pp. 65–73 |
| Keywords | Polychlorinated biphenylsRhizospherePolychlorinated biphenylsPolychlorinated biphenylsPolychlorinated biphenylsassisted bioremediationPhyto-assited bioremediationPopar |
| Journal | New biotechnology (Print) |
| Editor | Elsevier Life Science, Amsterdam, Paesi Bassi |
| Year | 2017 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.nbt.2016.09.006 |
| Authors | Ancona V, Barra Caracciolo A, Grenni P, Di Lenola M, Campanale C, Calabrese A, Uricchio V F, Mascolo G, Massacci A |
| Text | 362517 2017 10.1016/j.nbt.2016.09.006 ISI Web of Science WOS 27686395 Scopus 2 s2.0 84995486195 Polychlorinated biphenyls Rhizosphere Polychlorinated biphenyls Polychlorinated biphenyls Polychlorinated biphenyls assisted bioremediation Phyto assited bioremediation Popar Plant assisted bioremediation of a historically PCB and heavy metal contaminated area in Southern Italy Ancona V, Barra Caracciolo A, Grenni P, Di Lenola M, Campanale C, Calabrese A, Uricchio V F, Mascolo G, Massacci A Water Research Institute, National Research Council IRSA CNR , V.le F. De Blasio 5, 70132 Bari, Italy. Water Research Institute, National Research Council IRSA CNR , Via Salaria km 29,300 0015 Monterotondo Rome , Italy Institute of Agro Environmental and Forest Biology, National Research Council IBAF CNR , Via Salaria km 29,300 0015 Monterotondo Rome , Italy A plant assisted bioremediation strategy was applied in an area located in Southern Italy, close to the city of Taranto, historically contaminated by polychlorinated biphenyls PCBs and heavy metals. A specific poplar clone Monviso was selected for its ability to promote organic pollutant degradation in the rhizosphere, as demonstrated elsewhere. Chemical and microbiological analyses were performed at the time of poplar planting in selected plots at different distances from the trunk 0.25 1m and at different soil depths 0 20 and 20 40cm , at day 420. A significant decrease in PCB congeners and a reduction in all heavy metals was observed where the poplar trees were present. No evidence of PCB and heavy metal reduction was observed in the non poplar vegetated soil. Microbial analyses dehydrogenase activity, cell viability, microbial abundance of the autochthonous microbial community showed an improvement in soil quality. In particular, microbial activity generally increased in the poplar rhizosphere and a positive effect was observed in some cases at up to 1m distance from the trunk and up to 40cm depth. The Monviso clone was effective in promoting both a general decrease in contaminant occurrence and an increase in microbial activity in the chronically polluted area a little more than one year after planting. Published version https //www.scopus.com/record/display.uri eid=2 s2.0 84995486195 origin=resultslist sort=plf f src=s st1= st2= sid=a34b32817c470e7159d9098e5d2d644c sot=b sdt=b sl=118 s=TITLE ABS KEY%28Plant assisted bioremediation of a historically PCB and heavy metal contaminated area in Southern Italy%29 relpos=0 citeCnt=27 searchTerm= 23/09/2016 Plant assisted bioremediation of a historically PCB and heavy metal contaminated area in Southern Italy Ancona et al., NBT_2017 2_11_NBT_Plant assisted bioremediation.pdf Articolo in rivista Elsevier Life Science 1871 6784 New biotechnology Print New biotechnology Print New biotechnology. Print claudiacampanale CAMPANALE CLAUDIA DI LENOLA MARTINA vitofelice.uricchio URICCHIO VITO FELICE anna.barracaracciolo BARRA CARACCIOLO ANNA paola.grenni GRENNI PAOLA valeria.ancona ANCONA VALERIA angelo.massacci MASSACCI ANGELO angelantonio.calabrese CALABRESE ANGELANTONIO giuseppe.mascolo MASCOLO GIUSEPPE TA.P04.005.011 Vulnerabilita degli ecosistemi delle acque sotterranee e attenuazione naturale degli inquinanti nel suolo e nel sottosuolo |
