Search results for " mosaic"
showing 10 items of 112 documents
Globularia nudicaulis, a new host of Cucumber mosaic virus
2006
) is a perennial, foundnaturally on European mountains at altitudes between 900 and 2000 m.In June 2004, G. nudicaulis plants, with a yellow mosaic and/or variega-tion on malformed leaves, were noted among plant species cultivated in theBotanical Garden at Bologna University, Italy. No elongated virus-likeparticles were observed in affected-leaf extracts by transmission electronmicroscopy using a leaf dip method. By applying a protein A sandwichenzyme-linked immunosorbent assay (PAS-ELISA) technique ( Edwards Csystemic symptoms were observed in Nicotiana tabacum , N. benthamiana ,N. glutinosa, N. clevelandii and Capsicum annuum, and Cucumis sativusand C. melo. Reverse transcription-polymera…
First report of Cucumber mosaic virus infecting Solanum jasminoides in Italy
2008
Solanum jasminoides Paxton (potato vine or jasmine nightshade) is a vegetatively propagated ornamental species within the Solanaceae family. Recently, symptomless plants of this species were reported as natural hosts of the quarantine pest, Potato spindle tuber viroid (PSTVd) in Italy (1). In January 2008, approximately 1,000 potted, 2-year-old plants of S. jasminoides growing in an ornamental nursery in Sicily showed virus-like mosaic and malformation of leaves. Symptoms were observed on approximately 60% of the plants. Leaf tissue, collected from 30 symptomatic and 10 symptomless plants, was analyzed by double-antibody sandwich-ELISA with polyclonal antisera specific to Cucumber mosaic v…
Detection of Parietaria Mottle Virus by RT-qPCR: An Emerging Virus Native of Mediterranean Area That Undermine Tomato and Pepper Production in Southe…
2021
Parietaria mottle virus (PMoV) is considered an emerging virus in many countries of the Mediterranean basin, especially on tomato and pepper crops. Symptoms on tomato leaves and fruits can be easily confused with those induced by cucumber mosaic virus (CMV) with necrogenic satellite RNA (CMV-satRNA), tomato spotted wilt virus (TSWV) or tomato mosaic virus (ToMV). Mixed infection of these viruses has been also reported in some tomato cultivars, with an increase in the complexity of the symptoms and severity of the disease. Although a specific serum and riboprobes have been produced, nowadays no sensitive diagnostic methods are available for the rapid PMoV detection. Here, we have developed a…
Indagini diagnostiche non invasive sui dipinti murali della Villa Romana del Casale di Piazza Armerina
2007
Data from: Colour polymorphism torn apart by opposing positive frequency-dependent selection, yet maintained in space
2016
1. Polymorphic warning signals in aposematic species are enigmatic because predator learning and discrimination should select for the most common coloration, resulting in positive frequency-dependent survival selection. 2. Here, we investigated whether differential mating success could create sufficiently strong negative frequency-dependent selection for rare morphs to explain polymorphic (white and yellow) warning coloration in male wood tiger moths (Parasemia plantaginis). 3. We conducted an experiment in semi-natural conditions where we estimated mating success for both white and yellow male moths under three different morph frequencies. 4. Contrary to expectations, mating success was po…
High-resolution images in macular disorders
2021
Objective: This study analyzed and compared the results of adaptive optics (AO) and fundus autofluorescence (FAF) in various maculopathies. Methods: The study included four different types of maculopathy: central serous chorioretinopathy (CSC), retinitis pigmentosa (RP), Stargardt disease (STGD) and phototoxic retinopathy. In all four cases, cone mosaic and cone density were obtained using AO fundus camera. Further, the high-resolution images were compared with the FAF and optical coherence tomography (OCT) results. Results: In CSC, FAF and AO, changes could be shown in the macula even two years after the subretinal fluid resorption, as opposed to a normal OCT. The improvement of FAF and co…
Percorrendo il Bestiario. La rappresentazione del mondo animale nei pavimenti musivi del Medioevo veneziano
2019
Madonna Haghiosorìtissa oder der Fürsprache (scheda F 6_8)
2022
L'opera d'arte, oggi al Museo Diocesano di Palermo, è un mosaico staccato del XII secolo forse proveniente dalla cappella di Santa Maria Maddalena nella Cattedrale, dove erano sepolti i membri della famiglia Hauteville, voluta dalla regina Elvira The work of art, now in the Diocesan Museum in Palermo, is a detached 12th century mosaic possibly from the chapel of Saint Mary Magdalene in the Cathedral, where members of the Hauteville family were buried, commissioned by Queen Elvira Bei dem Kunstwerk, das sich heute im Diözesanmuseum in Palermo befindet, handelt es sich um ein freistehendes Mosaik aus dem 12. Jahrhundert, das möglicherweise aus der Kapelle der Heiligen Maria Magdalena in der K…
A Survey of Digital Mosaic Techniques
2006
RESTAURO ANNO ZERO Il varo della prima Carta italiana del restauro nel 1882 a seguito delle proteste internazionali contro la falsificazione della Ba…
2013
Il titolo del volume Restauro anno zero vuole sottolineare la svolta che, in conseguenza delle proteste internazionali e delle derivanti nuove disposizioni ministeriali con indirizzo storicistico e filologico, viene imposta al restauro in Italia, determinando una nuova stagione culturale in cui si suggella il valore universale delle testimonianze storico-artistiche. Nella pratica del restauro, quel periodo rappresenta il percorso iniziale per il riconoscimento della importanza della conservazione della materia dell’opera d’arte e quindi della autenticità come qualità assoluta e imprescindibile. Poteva scaturirne l’avviamento concreto di un cammino coerente e virtuoso, che però non ha mai tr…