c8.10.13 – Early responses to cadmium in Eridano and I-214 poplar clones

Di Baccio D (1), Castagna A (2), Tognetti R (3), Sebastiani L (1), Ranieri A (2)

(1) BioLabs – Istituto di Scienze della Vita, Scuola Superiore “Sant’Anna” di Studi Universitari e di Perfezionamento, Piazza Martiri della Libertà, 56127 Pisa, Italy; (2) Dipartimento di Chimica e Biotecnologie Agrarie, Università di Pisa, Via del Borghetto, 56124 Pisa, Italy; (3) Dipartimento di Scienze e Tecnologie per l’Ambiente ed il Territorio, Università del Molise, Contrada Fonte Lappone, 86090 Pesche, Italy
Collocazione: c8.10.13 – Tipo Comunicazione: Poster
8° Congresso SISEF *
Sessione 10: “Poster” *

Contatto: Daniela Di Baccio (dibaccio@sssup.it)

Abstract: Cadmium (Cd) is a highly toxic and carcinogenic metal used in metal plating, nickel-cadmium batteries, pigments, plastic stabilizers, pesticides and more. It is most toxic in its free (ionic) form, which easily dissolves and moves through water, threatening groundwater supplies. Poplars may be potentially used for the in situ decontamination of soils polluted with Cd, such as pasturelands fertilised with Cd-rich superphosphate fertiliser. Nevertheless, Cd uptake, transport and accumulation in plant tissues are not completely understood. Cadmium induces oxidative stress, though the response of poplar clones exposed to Cd excess in soil is not plain. Several studies have investigated the effect of heavy metals on poplar clones. Here we tested I-214 (Populus x euramericana) and Eridano (Populus deltoides x maximowiczii) exposed to excess Cd (0, 50, and 150 mg Cd Kg-1 soil) for five weeks in a pot experiment to evaluate metal tolerance, accumulation and translocation. If the results obtained in this pot experiment can be realised in the field, then a single crop of poplars could bioremediate Cd-contaminated soil, in an amount of years depending on the genotype used. The implications of findings for phytoremediation purposes are discussed.

Parole chiave: Heavy Metals, Accumulation, Gas Exchange, Pigments

Citazione: Di Baccio D , Castagna A , Tognetti R , Sebastiani L , Ranieri A (2011). Early responses to cadmium in Eridano and I-214 poplar clones . 8° Congresso Nazionale SISEF, Rende (CS), 04 – 07 Ott 2011, Contributo no. #c8.10.13