@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS010 prodottidellaricerca:prodotto prodotto:ID101955 . @prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . unitaDiPersonaleInterno:MATRICOLA13392 pubblicazioni:autoreCNRDi prodotto:ID101955 . @prefix unitaDiPersonaleEsterno: . unitaDiPersonaleEsterno:ID5102 pubblicazioni:autoreCNRDi prodotto:ID101955 . unitaDiPersonaleEsterno:ID6168 pubblicazioni:autoreCNRDi prodotto:ID101955 . @prefix modulo: . modulo:ID2619 prodottidellaricerca:prodotto prodotto:ID101955 . @prefix rdf: . prodotto:ID101955 rdf:type prodotto:TIPO1302 . @prefix retescientifica: . prodotto:ID101955 rdf:type retescientifica:ProdottoDellaRicerca . @prefix rdfs: . prodotto:ID101955 rdfs:label "Salicaceae species: Identification of molecular functions and analytical descriptors involved in metal uptake and translocation. (Abstract/Poster in atti di convegno)"@en . @prefix xsd: . prodotto:ID101955 pubblicazioni:anno "2006-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID101955 skos:altLabel "
G. Scarascia Mugnozza1; M. Sabatti1; M. Marmiroli2; G. Visioli2; C. Rustichelli2; E. Maestri2; A. Massacci3; F. Pietrini3; R. Tognetti4 (2006)
Salicaceae species: Identification of molecular functions and analytical descriptors involved in metal uptake and translocation.
in Cost Action 859 Phytotechnologies to promote sustainable land use and improve food safety. 1st scientific meeting of WG1 Root to shoot translocation of pollutants and nutrients., Santiago de Compostela, Spain, 22-24 giugno 2006
"^^rdf:HTML ; pubblicazioni:autori "G. Scarascia Mugnozza1; M. Sabatti1; M. Marmiroli2; G. Visioli2; C. Rustichelli2; E. Maestri2; A. Massacci3; F. Pietrini3; R. Tognetti4"^^xsd:string ; pubblicazioni:paginaInizio "63"^^xsd:string ; pubblicazioni:paginaFine "63"^^xsd:string ; pubblicazioni:url "http://w3.gre.ac.uk/cost859/WG1/WG1-Santiago-2006_Abstracts.pdf"^^xsd:string ; skos:note "Google Scholar"^^xsd:string , "Abstract"^^xsd:string ; pubblicazioni:affiliazioni "1 University of Tuscia, Viterbo, Italy,2 University of Parma, Italy,3 Institute of Agroenvironment and Forest Biology of National Research Council, Rome, Italy, 4 University of Molise, Italy"^^xsd:string ; pubblicazioni:titolo "Salicaceae species: Identification of molecular functions and analytical descriptors involved in metal uptake and translocation."^^xsd:string ; prodottidellaricerca:abstract "So far there is scientific evidence that plants tolerate excess of heavy metals through mechanisms acting at two different levels: either metal exclusion in the root or metal uptake in shoots and leaves. Leaves and shoots metals accumulation is thought to be achieved through compartmentalisation or sequestration of metal ions within lignified structures or complexation with organic chelates (Clemens, Planta (2001) 212:475-486). In particular, some plant species growing on metal-rich soils can accumulate high metals concentrations in leaves; hyperaccumulating plants have been found for Ni, Cd, Zn, Se, and As, whereas accumulation capacities towards other elements have not been clearly demonstrated. Hyperaccumulator plants have peculiar common feature in relation to little biomass production at maturity and slow growth rates, making them not liable for phytoremediation (Schnoor, 2002 Technology Evaluation Report TE-02-01, Ground-Water Remediation Technologies Analysis Center (GWRTAC)). On the other hand, high-biomass, fast growing plant species such as Populus and Salix genera can at times accumulate high amount of heavy metals and other minerals. The analysis of genetic diversity concerning specific genes, in plants that have been shown to be particularly effective in decontamination, could contribute to the description of available genetic resources as far as metals and metalloids uptake , translocation and storage are concerned. The research proposed here focuses on heavy metals with high soil mobility and toxicity as Cadmium and Arsenic. These elements are present in the environment due to natural or man-made situations. The plant species of interest for this study are from the Salicaceae family (Populus nigra, Populus alba, P. deltoides, Salix alba) because they show a huge genetic variability, high phytoremediation abilities and a wide availability of germplasm. In particular, Populus species are quite easy to study as they have a little haploid genome, are fast growing, suitable to agamic propagation, and there is large availability of their genetic maps. Moreover plants from Populus species are susceptible to genetic transformation and regeneration. During previous years of research, 20-30 genotypes\nof Populus and Salix species, and hybrids, were selected for Cd tolerance from Italian germplasm collections. Biochemical and physiological studies such as photosynthetic activity, root uptake and biomass accumulation will be performed to test the uptake and sequestration\ncapacities and to select 6-8 genotypes with the best characteristics for phytoremediation. The genetic analysis on this material will be carried on by selecting genes involved in the different steps of the process: metal uptake, sequestration, compartmentalisation, and translocation. A\ndatabase has been developing for Populus species containing EST homologous to genes isolated from different plant species. The genes encode for proteins involved in tolerance to heavy metals: metallothioneins; enzymes for phytochelatin synthesis; tonoplast propteins; proteins produced under high temperatures and oxidative stresses. Genes homologous to different transporters involved in heavy metal uptake will be also isolated from Populus genome. Single nucleotide polymorphisms (SNPs) will be looked for by comparing sequences from different poplar clones and by identifying those sequences that may be potentially responsible for allelic variants with functional significance. This experimental pathway will\neventually help in identifying possible molecular descriptors of plants performance in phytoremediation."@en ; prodottidellaricerca:prodottoDi istituto:CDS010 , modulo:ID2619 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA13392 , unitaDiPersonaleEsterno:ID5102 , unitaDiPersonaleEsterno:ID6168 .