Occurrence of Grapevine Pinot gris virus in Friuli Venezia Giulia (Italy): field monitoring and virus quantification by real‐time RT‐PCR. (April 2015)

• Record Type: Journal Article
• Authors: Bianchi, G. L.; De Amicis, F.; De Sabbata, L.; Di Bernardo, N.; Governatori, G.; Nonino, F.; Prete, G.; Marrazzo, T.; Versolatto, S.; Frausin, C.
• Is Part Of: Bulletin OEPP. Volume 45:Number 1(2015)
• Page Start: 22
• Page End: 32
• Publication Date: 2015-04
• Subjects: Plant diseases -- Periodicals; Plants, Protection of -- Periodicals
• DOI: 10.1111/epp.12196
• Languages: English
• ISSNs: 0250-8052

Abstract

<abstract abstract-type="main" id="epp12196-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Since 2003 the presence of a new syndrome characterized by symptoms of stunting, chlorotic mottling, leaf deformation, reduced yields and quality has been reported in some white berry varieties of <italic>Vitis vinifera</italic> in Trentino‐Alto Adige and Friuli Venezia Giulia vineyards. The identification of a new virus, provisionally called Grapevine Pinot gris virus (GPGV), in a cv. Pinot gris vine suggested an association between this new syndrome and the virus presence (Giampetruzzi <italic>et al</italic>., 2012), however the contemporary presence of GPGV in both symptomatic and asymptomatic plants has still to be explained. In this work, a large‐scale monitoring over a 3‐year period (2012–14) of Friuli Venezia Giulia vineyards and nurseries has shown a widespread presence of GPGV in symptomatic plants and also in asymptomatic vines, even if at a slightly lower percentage. Quantitative analyses of the virus titer revealed a great variability in the viral content of both symptomatic and asymptomatic plants but the mean GPGV quantity in symptomatic vines was significantly higher than in asymptomatic plants.</p> </abstract>