http://http://dspace.unitus.it:80 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. 2013-05-24T08:17:13Z http://hdl.handle.net/2067/1192 Title: Association of the Black Rot Fungus Ciboria batschiana with the Chestnut Weevil Curculio propinquus in Chestnut Orchards in Central Italy Authors: Vettraino, Anna Maria; Speranza, Stefano; Paparatti, Bruno; Pucci, Claudio; Vannini, Andrea Abstract: The association of the black rot fungus Ciboria batschiana and the chestnut weevil Curculio propinquus was investigated. Insects from a single plantation located in a chestnut area in Viterbo, in the Lazio Region (Italy) were analysed for association with the fungus. Ciboria batschiana was detected in 2 out of 10 adults collected from the ground and 21 out of 22 adults from the trees. Only 33.3% of the larvae were found to be associated to the fungus. The ability of C. propinquus to carry the fungus was confirmed. Its role as a possible vector of this pathogen deserves further study. 2004-12-31T23:00:00Z http://hdl.handle.net/2067/2149 Title: Assessment of full carbon budget of Italy: the CarbIUS project Authors: Papale, Dario; Castaldi, Simona; Ciccioli, Paolo; Corona, Piermaria; Di Tizio, Alessandra; Masci, Alberto; Miglietta, Franco; Reichstein, Markus; Vannini, Andrea Abstract: Regional carbon balances, funded, for the Italian side, by the Italian Ministry of Environment in the context of a bilateral agreement to develop scientific collaborations in Global Change Research between Italy and USA signed in 2001. The two regions selected are Italy and Oregon-California; there are many similarities between these two regions (climate, vegetation, topography, population pressure, etc.) but, on other hand, there are also interesting contrasts in societal aspects like demography, land-use history and emissions. The main CarbIUS objectives are 1) the identification of spatial and temporal variability of carbon sources and sinks and the relative contribution of the different anthropogenic and biogenic components, 2) the impact of land use changes and human population dynamics on the carbon balance, 3) the quantification of the effects of climate and natural disturbances on the terrestrial carbon stocks and fluxes and 4) the application of new methodologies to investigate carbon metabolism at the plot, ecosystem and regional scale. In this paper will be presented the methodologies that we are using to assess the contribution of the different components to the full carbon budget, like carbon stocks and fluxes, disturbances (harvesting, wild forest fires and forest pathology), CH4 and NO2 fluxes and anthropogenic emissions. All these information will be input in a Data Assimilation System and the results will be validated using sub-regional airborne measurements of carbon fluxes. 2004-12-31T23:00:00Z http://hdl.handle.net/2067/1789 Title: Phytophthora himalsilva sp. nov. an unusually phenotypically variable species from a remote forest in Nepal Authors: Vettraino, Anna Maria; Brasier, Clive; Brown, Anna Maria; Vannini, Andrea 2011-02-28T23:00:00Z http://hdl.handle.net/2067/2251 Title: A molecular assay to investigate the possible association between the chestnut weevil curculio propinquus and the black rot fungus rachodiella castaneae Authors: Vettraino, Anna Maria; Speranza, Stefano; Paparatti, Bruno; Pucci, Claudio; Vannini, Andrea Abstract: Black rot, induced by Rachodiella castaneae Pyr. [teleomorph: Sclerotinia pseudotuberosa Rehm.; syn. Ciboria batschiana (Zopf) Buchw.], and the chestnut weevil [Curculio propinquus (Desbr.)] are among the most serious phytosanitary problems of the chest- nut (Castanea sativa Mill.) fruit industry in Italy, causing relevant economic losses at harvest and during storage. Symptoms of black rot are frequent in nuts infested by C. propinquus, and hence an association between the fungus and the insect has been hypothesised. To verify this hypothesis, clusters of immature burrs from three trees in a chestnut area in Central Italy were covered with a net and treated as follow: (i) infested with C. propinquus adults that had been artificially contaminated with R. castaneae; (ii) infested with C. propinquus uncontaminated adults; (iii) uninfested negative control. At harvest time, the nets were re- moved and the adults of the insects and chestnut fruits were col- lected. Due to the inefficacy of traditional diagnostic methods, the detection R. castaneae in C. propinquus and in chestnut fruits was performed by PCR. Two sequences specific for R. castaneae were identified in the ITS region of rDNA, and two species-spe- cific primers (RAC1 and RAC2) were designed. R. castaneae was detected in more than 90% of the chestnut weevils analysed, re- gardless the treatment, and in 77, 73, and 92% of nuts following the treatments (i), (ii) and (iii), respectively. These findings sug- gest an endophytic habitus of R. castaneae in chestnut fruits and that C. propinquus is a potential vector of the pathogen. 2002-12-31T23:00:00Z http://hdl.handle.net/2067/2275 Title: Progetto regione Lazio - PRAL 118. Il kiwi nel Lazio: innovazioni in punti critici della filiera dalla pianta al consumatore Authors: Pecora, Pasquale; Carbone, Giuseppe; Montanaro, Giuseppe; Dichio, Bartolomeo; Xiloyannis, Cristos; Anelli, Gabriele; Bellincontro, Andrea; Botondi, Rinaldo; Forniti, Roberto; Mencarelli, Fabio; Muganu, Massimo; Camilli, Mariano; Balestra, Giorgio Mariano; Fratarcangeli, Luca; Rossetti, Antonio; Chilosi, Gabriele; Magro, Paolo; Martignoni, Diana; Di Giovanni, Michela; Vannini, Andrea; Vettraino, Anna Maria; Pucci, Claudio; Speranza, Stefano; Carbone, Anna Abstract: Are described researches and results related to cultural practices (irrigation, fertilization), plant protection, quality and post harvest aspects carried out by a Lazio regional project (PRAL 188).; Sono presentati i risultati del progetto PRAL 118 finanziato dalla regione Lazio. In particolare sono riportati una sintesi dei risultati delle attività svolte per il miglioramento della gestione delle pratiche colturali, la protezione della pianta, la qualità della produzione ed il post raccolta. 2008-12-31T23:00:00Z