Search results for "SELE"
showing 10 items of 4721 documents
Il settore dell’olivicoltura da tavola in Italia: Situazione e prospettive
2020
Table olive Industry in Italy The Italian table olive industry is almost completely located in the southern regions: Sicily and Apulia together account for about two thirds of the entire national production. “Nocellara del Belice”, “Nocellara etnea”, “Bella di Cerignola”, “Ascolana” and “Itrana” are the leading cultivars, together with a large number of other local traditional varieties, often utilised for a double purpose (table olives and oil production). Although Italy is nowadays largely dependent (more than 50%) on importations from other countries (mainly Spain, Greece and Morocco) the domestic production has been declining in the last thirty years and currently accounts for about 2-3…
Pesticides: Chemical and Biological.
2013
There is a requirement by World Health Organization (WHO), Food and Agriculture Organization (FAO) and other International Organizations to develop environmentally sustainable systems for controlling pests that are less reliant on chemical pesticides as the primary management tool. However biological control alone cannot at the moment solve all pest problems and must be considered instrument to be used in combination with other methods. Compatibility of chemical pesticides (CP) and biological pesticides (BP) is one of the key for the implementation of Integrated Pest Management (IPM) programs. Testing the compatibility of CP and BP is necessary if these two agents are to be applied together…
Behavioral responses of the parasitoid Melittobia digitata to volatiles emitted by its natural and laboratory hosts
2010
Responses of macropterous females of the ectoparasitoid Melittobia digitata Dahms (Hymenoptera: Eulophidae) to direct and indirect cues emitted by its natural hosts as well as laboratory hosts were investigated using a Y-tube olfactometer. To locate the nest ofmud dauber wasps, Trypoxylon politum Say (Hymenoptera: Crabronidae), and one of their inquilines, Anthrax spec., parasitoids exploit volatiles from the freshly built nest mud and the empty cocoon constructed by the wasps, as well as their meconium. However, the parasitoids did not respond to odors emitted by older nest mud or by the host stages that are attacked (T. politum prepupae and Anthrax spec. larvae). Melittobia digitata was n…
LA FOTOCATALISI ETEROGENEA UTILIZZATA COME METODO PER LE SINTESI ORGANICHE SELETTIVE IN CONDIZIONI SPERIMENTALI BLANDE
2014
Nel corso di questi tre anni di Dottorato di Ricerca in “Tecnologie per la Sostenibilità ed il Risanamento Ambientale”, XXIV ciclo, presso il laboratorio di ricerca di fotocatalisi eterogenea “Schiavello-Grillone”, sono stati sviluppati processi innovativi per la produzione selettiva di specie organiche ad alto valore aggiunto, seguendo i principi della Chimica Verde; in particolare sono state studiate reazioni di ossidazione parziale di composti aromatici. La metodologia prevalentemente utilizzata è stata la fotocatalisi eterogenea mediante l’utilizzo del biossido di Titanio policristallino (TiO2) come fotocatalizzatore, utilizzato sospeso in soluzione acquosa o immobilizzato su supporti r…
Cationi metallici incorporati nei carbonati primari e pedogenici.
2004
Diversi cationi metallici, tra cui alcuni traccianti diagenetici e importanti contaminanti ambientali possono sostituire il calcio nella struttura della calcite o co-precipitare con essa. Scopo di questo lavoro è stato di investigare quali cationi metallici sono associati ai carbonati del suolo e di quantificarli. A tal fine, sono stati scelti cinque pedon evolventi su diversi litotipi e con un contenuto in carbonati piuttosto variabile. I campioni di suolo sono stati trattati con acido acetico 1M per permettere la dissoluzione selettiva dei carbonati e le soluzioni risultanti sono state analizzate per i seguenti cationi metallici: Ca, Cr, Mn, Fe, Co, Ni, Sr, Ba, Pb, U. Dai risultati si evi…
Exploring genome-wide differentiation and signatures of selection in Italian and North American Holstein populations
2023
Among Italian dairy cattle, the Holstein is the most reared breed for the production of Parmigiano Reggiano protected designation of origin cheese, which represents one of the most renowned products in the entire Italian dairy industry. In this work, we used a medium-density genome-wide data set consisting of 79,464 imputed SNPs to study the genetic structure of Italian Holstein breed, including the population reared in the area of Parmigiano Reggiano cheese production, and assessing its distinctiveness from the North American population. Multidimensional scaling and ADMIXTURE approaches were used to explore the genetic structure among populations. We also investigated putative genomic regi…
Detection of genomic signatures of selection in the North African Brune de l’Atlas cattle
2018
The identification of signatures of selection in indigenous livestock genome is able to elucidate the adaptive mechanisms allowing them to cope with environmental pressures. In the present study, we used genotyping data from 106 Brune de l’Atlas cattle individuals and tests based on the extent of haplotype homozygosity (EHH) to look for footprints of natural selection. We identified 17 genomic regions displaying strong signal of selection (p-value <10-6) overlapping with previously described QTL regions affecting many traits such as meat and milk composition, tuberculosis susceptibility, tick and mastitis resistance. Some of these highly significant candidate regions overlap with four previ…
Selection signatures of fat tail in sheep
2017
The investigation of the genes with a role in lipid metabolism enjoy considerable scientific and commercial interest because of the strong correlations between fat deposition and the risk of cardiovascular disease. The fat tail characteristic of sheep is the adaptive response to harsh environment, and beyond representing a valuable energy reserve for facing future climate changes provides clues for elucidating the physiology of fat deposition. Studies on various sheep populations detected fat-tail signatures on chromosomes 2, 3, 5, 6, 7 and 13. Fat-tailed sheep represent about 25% of the world’s sheep population, and the genes with a role in this phenotype are likely not the same for every …
Evolution and functional differentiation of recently diverged phytochelatin synthase genes from Arundo donax L.
2019
Plant phytochelatin synthases undergo evolutionarily rapid functional differentiation after duplication, allowing fast and precise adjustment of metal detoxification capacity by modulation of both transcription and enzymatic activity.