Results 151 to 160 of about 21,236,052 (172)

Virus preparations from the mixed-infected P70 Pinot Noir accession exhibit GLRaV-1/GVA ‘end-to-end’ particles [PDF]

Archives of Virology, 2018
P70 is a Pinot Noir grapevine accession that displays strong leafroll disease symptoms. A high-throughput sequencing (HTS)-based analysis established that P70 was mixed-infected by two variants of grapevine leafroll-associated virus 1 (GLRaV-1, genus Ampelovirus) and one of grapevine virus A (GVA, genus Vitivirus) as well as by two viroids (hop stunt ...
Alliaume, Antoine, Reinbold, Catherine, Erhardt, Mathieu, Beuve, Monique, Hily, Jean-Michel, Lemaire, Olivier, Herrbach, Etienne   +6 more
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Monitoring of grapevine leafroll-associated virus 1 (GLRaV-1) dispersion by the mealybug phenaccocus aceris

, 2009
A four-year monitoring in a vineyard affected with leafroll and first transmission experiments were performed in order to understand leafroll dispersion by the mealybug Phenacoccus aceris. Our data showed for the first time that GLRaV-1 progression was due to the colonisation of the monitored vineyard by infective P.
Le Maguet, Jean, Herrbach, Etienne, Hommay, Gerard, Beuve, Monique, Boudon-Padieu, Elisabeth, Lemaire, Olivier   +5 more
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Acquisition and transmission of GLRAV-1 (Grapevine leafroll associated ampelovirus 1) by Planococcus citri (RISSO) (Hemiptera pseudococcidae)

, 2009
Grapevine leafroll disease occurs in all major grape-growing areas. Several Grapevine leafroll associated viruses (GLRaVs) have been shown to be transmitted by mealybugs. Nine mealybugs have been reported as vectors of GLRaV-3 although detailed characterization of GLRaV-1 vectors transmission is lacking. The presence of GLRaV-1 and Planococcus citri in
SCOTTO C, CONTI, BARBARA, PANATTONI, ALESSANDRA, TRIOLO, ENRICO   +3 more
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Etude de la dispersion du Grapevine Leafroll-associated virus 1 (GLRaV-1, Ampelovirus, Closteroviridae) par la cochenille Phenacoccus aceris (Pseudococcidae)

, 2009
Etude de la dispersion du Grapevine Leafroll-associated virus 1 (GLRaV-1, Ampelovirus, Closteroviridae) par la cochenille Phenacoccus aceris (Pseudococcidae).
Le Maguet, Jean, Hommay, Gerard, Beuve, Monique, Herrbach, Etienne, Boudon, Elisabeth, Lemaire, Olivier   +5 more
openaire   +2 more sources

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New Mealybug Species Vectoring Grapevine Leafroll-Associated Viruses-1 and -3 (GLRaV-1 and -3)

European Journal of Plant Pathology, 2003
Many grape viruses, such as filamentous Grapevine leafroll-associated viruses in the Closteroviridae family, are spread primarily through infected propagating material. However, there is increasing evidence that leafroll disease are spread in the field by insect vectors, namely mealybugs and other scale insects.
Sforza, René, Boudon-Padieu, E., Greif, Charles   +2 more
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Proteomic analysis of the effect of GLRAV-1 and GVA infection on “Nebbiolo” berries at maturity.

2010
Beside the severe sanitary control required to propagate plant material, the presence of viruses in North Western Italian vineyards is rather endemic. Viral infections are known to have a detrimental effect on vine yield and performances, but there is still a lack in the knowledge of their effect on quality and safety of final products. Previous report
Giribaldi M, Purrotti M, Pacifico D, Santini D, Cavallarin L, Giuffrida MG, Conti A   +6 more
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An integrated study on the effects of GLRaV-1, GVA and RSPaV on the field performance and berry quality of Vitis vinifera cv. Nebbiolo.

2011
Viruses can affect grapevine yield and field performance, but the impact of infection on the quality and safety of final products has been scarcely investigated. This study reports the first analysis of agronomic performance, fruit texture and composition, and proteomic changes occurring in berries of virus-infected Vitis vinifera cv.
Pacifico D, Giribaldi M, Purrotti M, Santini D, Mannini F, Caciagli P, Rolle L, Cavallarin L, Giuffrida MG, Marzachì C   +9 more
openaire   +2 more sources

Field performances and grape quality of the same clone of 'Nebbiolo' (Vitis vinifera L.) when infected by GLRaV-1+GVA, GVA or healthy

2018
Leafroll, one of the most important virus diseases in grapevine, is mainly due to single or mixed infection of the Ampelovirus Grapevine Leafroll associated Virus 1 (GLRaV-1) and 3 (GLRaV-3). Grapevine virus A (GVA) is a Vitivirus associated with the aetiology of Kober Stem grooving.
Cuozzo D, Chitarra W, Ferrandino A, Gribaudo I, Gambino G, Mannini F   +5 more
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Biologie de la vection de l'ampélovirus GLRaV-1 et du vitivirus GVA par la cochenille Phenacoccus aceris

L’enroulement de la vigne cause des pertes de rendement et de la qualité des vins au niveau mondial. Il est causé par quatre espèces de Grapevine leafroll-associated virus(GLRaVs) ; GLRaV-1, -2, -3, -4-like. Si le GLRaV-2 (genre Closterovirus) ne possède pas de vecteur connu, les trois autres espèces (genre Ampelovirus) sont transmises par cochenilles ...
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Möglichkeiten und Grenzen der Virusdetektion von GLRaV-1 mittels LAMP

Masterarbeit Hochschule Geisenheim University ...
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