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- Grapevine virus A (GVA) is a moderately common genetic virus that affects Vitis vinifera and American Vitis grapevine species throughout the world and can be fatal if not treated. Grapevine virus A is in the family Betaflexiviridae and genus Vitivirus. The common name for this virus is grapevine closterovirus. Common symptoms in infected grapevines include stem pitting (when the outer layer of the stems of the grapevine to peel off). Although there is a treatment available to cure infected grapevines, it is not one hundred percent effective, so preventative measures are the best solution to the virus. Every inhabited continent on the globe has had breakouts of grapevine closterovirus due to the complex genetic makeup of the virus. Grapevine virus A has a single-stranded RNA genome, which is similar to that of Grapevine virus B. There are multiple strains of the virus that vary both molecularly and biologically which account for the slightly different symptoms exhibited by infected plants. (en)
- Grapevine virus A Grapevine virus A Virion vu en microscopie électronique (le trait représente 100 nm). Espèce Grapevine virus AICTV 1997 Synonymes Selon CABI :
* Grapevine corky bark closterovirus
* Grapevine corky bark disease
* Grapevine corky bark virus
* Grapevine stem pitting disease
* Grapevine stem pitting virus
* Grapevine stem pitting-associated closterovirus
* Grapevine stem-pitting virus Le virus A de la vigne (Grapevine virus A, GVA) est une espèce de virus du genre Vitivirus (famille des Betaflexiviridae) dont c'est l'espèce-type. C'est un phytovirus qui affecte plusieurs espèces du genre Vitis en particulier la vigne européenne (Vitis vinifera) et les vignes américaines. Ce virus, également connu sous le nom de Grapevine closterovirus, est relativement commun et peut être fatal en l'absence de traitement. Les symptômes les plus courants chez les vignes infectées sont notamment la striure et le piquetage des tiges (accompagnés de la desquamation de la couche externe des tiges). Bien qu'il existe un traitement pour soigner les vignes infectées, il n'est pas totalement efficace, et les mesures préventives restent la meilleure parade contre ce virus. Des épidémies se sont produites dans toutes les régions de viticulture, en raison en particulier de la composition génétique complexe du virus. Le virus de la vigne A a un génome constitué d'ARN simple brin, très semblable à celui du . Il existe de multiples souches du virus qui varient à la fois sur les plans moléculaire et biologique, ce qui explique les symptômes légèrement différents présentés par les plantes infectées. (fr)
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- Grapevine virus A (GVA) is a moderately common genetic virus that affects Vitis vinifera and American Vitis grapevine species throughout the world and can be fatal if not treated. Grapevine virus A is in the family Betaflexiviridae and genus Vitivirus. The common name for this virus is grapevine closterovirus. Common symptoms in infected grapevines include stem pitting (when the outer layer of the stems of the grapevine to peel off). Although there is a treatment available to cure infected grapevines, it is not one hundred percent effective, so preventative measures are the best solution to the virus. Every inhabited continent on the globe has had breakouts of grapevine closterovirus due to the complex genetic makeup of the virus. Grapevine virus A has a single-stranded RNA genome, which i (en)
- Grapevine virus A Grapevine virus A Virion vu en microscopie électronique (le trait représente 100 nm). Espèce Grapevine virus AICTV 1997 Synonymes Selon CABI :
* Grapevine corky bark closterovirus
* Grapevine corky bark disease
* Grapevine corky bark virus
* Grapevine stem pitting disease
* Grapevine stem pitting virus
* Grapevine stem pitting-associated closterovirus
* Grapevine stem-pitting virus (fr)
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- Grapevine virus A (en)
- Virus A de la vigne (fr)
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