| Title | Effects of DDE occurrence on the Solanum lycopersicum rhizosphere under different organic carbon sources |
| Abstract | Contamination by Persistent Organic Pollutants such as DDTs (p´p´-DDT and its metabolites p´p´-DDE and p´p´-DDD) is an important threat to soil ecosystem quality. Plant-based clean up technologies are as sustainable solutions to contaminated soil remediation. They rely on the physiological abilities of selected plants to decrease pollutants from soil through different processes occurring in the rhizosphere involving symbiotic and non-symbiotic interactions with natural microorganisms. Solanum lycopersicum is known to be able to accumulate DDTs in roots, owing to exudate production, which makes this contaminant bioavailable in soil. In this context, a greenhouse experiment was performed using pots filled with DDE-contaminated soil and watered with different kinds of dissolved organic
carbon (DOC). Control soils (without plant and/or DDE) were also performed. Finally, we obtained 12 different conditions. Soil and plant samples were collected 40 days after the DDE exposure. The effects of the different treatments on the natural microbial community of the rhizosphere were evaluated in terms of microbial abundance, viability, structure, dehydrogenase activity and possible DDE
degradation. Moreover, roots and shoots of the tomato plants were also sampled and analysed for the determination of the pesticide bioconcentration. The main results from the different experimental conditions will be discussed. |
| Source | 27th SETAC Europe Annual Meeting, Bruxelles, 7-11/05/2017 |
| Keywords | Solanum lycopersicumDDEcontaminated soil remediation |
| Year | 2017 |
| Type | Abstract in atti di convegno |
| Authors | Barra Caracciolo A, Mitton F, Cardoni M, Di Lenola M, Patrolecco L, Ademollo N, Gonzalez M, Miglioranza KSB, Grenni P |
| Text | 373461 2017 Solanum lycopersicum DDE contaminated soil remediation Effects of DDE occurrence on the Solanum lycopersicum rhizosphere under different organic carbon sources Barra Caracciolo A, Mitton F, Cardoni M, Di Lenola M, Patrolecco L, Ademollo N, Gonzalez M, Miglioranza KSB, Grenni P Barra Caracciolo A, Cardoni M, Di Lenola M, Patrolecco L, Ademollo N, Grenni P IRSA CNR Mitton F, IIMYC CONICET/UNMDP Gonzalez M Instituto de Investigaciones Marinas y Costeras CONICETUniversidad Nacional de Mar del Plata / Laboratorio de Ecotoxicologia y Contaminacion Ambiental ECoA Miglioranza KSB , University of Mar Del Plata / Laboratorio de Ecotoxicologia y Contaminacion Ambiental ECoA Environmental Quality Through Transdisciplinary Collaboration. SETAC Europe, Brussels Published version https //brussels.setac.org/wp content/uploads/2016/06/1702712_abstractbook.pdf 27th SETAC Europe Annual Meeting Bruxelles 7 11/05/2017 Internazionale Contributo Contamination by Persistent Organic Pollutants such as DDTs p´p´ DDT and its metabolites p´p´ DDE and p´p´ DDD is an important threat to soil ecosystem quality. Plant based clean up technologies are as sustainable solutions to contaminated soil remediation. They rely on the physiological abilities of selected plants to decrease pollutants from soil through different processes occurring in the rhizosphere involving symbiotic and non symbiotic interactions with natural microorganisms. Solanum lycopersicum is known to be able to accumulate DDTs in roots, owing to exudate production, which makes this contaminant bioavailable in soil. In this context, a greenhouse experiment was performed using pots filled with DDE contaminated soil and watered with different kinds of dissolved organic carbon DOC . Control soils without plant and/or DDE were also performed. Finally, we obtained 12 different conditions. Soil and plant samples were collected 40 days after the DDE exposure. The effects of the different treatments on the natural microbial community of the rhizosphere were evaluated in terms of microbial abundance, viability, structure, dehydrogenase activity and possible DDE degradation. Moreover, roots and shoots of the tomato plants were also sampled and analysed for the determination of the pesticide bioconcentration. The main results from the different experimental conditions will be discussed. Abstract Book 1702712_abstractbook.pdf Abstract in atti di convegno CARDONI MARTINA DI LENOLA MARTINA luisa.patrolecco PATROLECCO LUISA anna.barracaracciolo BARRA CARACCIOLO ANNA paola.grenni GRENNI PAOLA nicoletta.ademollo ADEMOLLO NICOLETTA TA.P04.005.011 Vulnerabilita degli ecosistemi delle acque sotterranee e attenuazione naturale degli inquinanti nel suolo e nel sottosuolo |
