Results 121 to 130 of about 757 (160)

Serological and molecular evidence for the complexity of the leafroll disease of grapevine

Plant Pathology, 1989
Samples of leafroll‐infected grapevines from various countries, as well as local sources, were tested by ELISA with antisera against two closteroviruses (GVA and NY‐1) and a potyvirus (GPV) thought to be associated with leafroll. Many of the samples reacted positively with more than one antiserum, and often with all three.
EDNA TANNE, LEA NAVEH, ILAN SELA
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Characterization of Closterovirus‐like Particles Associated with Grapevine Leafroll Disease

Journal of Phytopathology, 1990
Abstract A purification procedure (Zeeet al. 1987) for closterovirus‐like particles associated with grapevine leafroll disease was improved after various sources of plant tissues, extraction buffers, pH values, and centrifugation techniques had been examined. An antiserum against the CA‐4 isolate was produced and used in ELISA. The virus‐like particles
J. S. Hu, D. Gonsalves, D. Teliz
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An Agent-Based Model of Plant Disease Diffusion and Control: Grapevine Leafroll Disease

2012
The grapevine leafroll disease (GLRD) threatens grape harvests in the United States and the world. This viral disease reduces yield, delays fruit ripening, and affects wine quality. The disease ecology is still under study and the spatial-dynamics of the spread process remains poorly understood. Moreover, little is known about cost-efficient strategies
Atallah, Shady S., Gomez, Miguel I., Conrad, Jon M., Nyrop, Jan P.   +3 more
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Occurrence of grapevine virus A (GVA) and other closteroviruses in Tunisian grapevines affected by leafroll disease

2015
Vorkommen von Grapevine-Virus A (GVA) und anderen Closteroviren in blattrollkranken tunesischen Reben Reben, die aus den Hauptweinbaugebieten Tunesiens stammten, wurden auf die Anwesenheit von Closteroviren hin überprüft. Während in keiner der symptomfreien Reben Viruspartikel entdeckt wurden, enthielten alle Reben mit Blattrollsymptomen - außer zweien
Agran, M. K., Di Terlizzi, B., Boscia, D., Minafra, A., Savino, V., Martelli, G. P., Askri, F.   +6 more
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A Plant‐Level, Spatial, Bioeconomic Model of Plant Disease Diffusion and Control: Grapevine Leafroll Disease

American Journal of Agricultural Economics, 2014
AbstractGrapevine leafroll disease threatens the economic sustainability of the grape and wine industry in the United States and around the world. This viral disease reduces yield, delays fruit ripening, and affects wine quality. Although there is new information on the disease spatial‐dynamic diffusion, little is known about profit‐maximizing control ...
Shady S. Atallah, Miguel I. Gómez, Jon M. Conrad, Jan P. Nyrop   +3 more
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Identification and distribution of multiple virus infections in Grapevine leafroll diseased vineyards

European Journal of Plant Pathology, 2015
A survey of viruses affecting grapevine in the wine regions of the Western Cape Province in South Africa was conducted. The survey determined the relative abundance of five different Grapevine leafroll-associated virus 3 (GLRaV-3) variants. Virus profiles were also determined for individual vines.
Anna E. C. Jooste, Nicholas Molenaar, Hans J. Maree, Rachelle Bester, Liesl Morey, Wenhelene C. de Koker, Johan T. Burger   +6 more
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Investigations on Transmission of Grapevine Leafroll, Yellow Speckle and Fleck Diseases by Dodder

Journal of Phytopathology, 1983
AbstractAttempts were made to transmit the infective agents of leafroll, yellow speckle, and fleck diseases from infected grapevmes to several herbaceous species and to healthy vines using dodder (Cuscuta campestris). Dodder transmitted leafroll to all and fleck to half of the respective receptor vines, but none of the three dieases were transmitted to
R. C. Woodham, I. R. Krake
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The New Zealand perspective of an ecosystem biology response to grapevine leafroll disease

Grapevine leafroll-associated virus 3 (GLRaV-3) is a major pathogen of grapevines worldwide resulting in grapevine leafroll disease (GLD), reduced fruit yield, berry quality and vineyard profitability. Being graft transmissible, GLRaV-3 is also transmitted between grapevines by multiple hemipteran insects (mealybugs and soft scale insects).
Kar Mun, Chooi, Vaughn A, Bell, Arnaud G, Blouin, Manoharie, Sandanayaka, Rebecca, Gough, Asha, Chhagan, Robin M, MacDiarmid   +6 more
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Ampeloviruses Associated with Grapevine Leafroll Disease: A New Group of Viruses in India

2017
Ampeloviruses (family Closteroviridae) are filamentous monopartite, single-stranded, positive-sense RNA genome. They are transmitted by mealybugs in semi-persistent manner and vegetative propagating material remains the major route of spread. Ampeloviruses are recent addition to the plant viruses in India. Grapevine leafroll-associated virus 3 (GLRaV-3)
Sandeep Kumar, Richa Rai, Virendra Kumar Baranwal   +2 more
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Characterization and Serological Detection of Four Closterovirus‐like Particles Associated with Leafroll Disease on Grapevine

Journal of Phytopathology, 1990
AbstractFour serologically unrelated closterovirus‐like particles (GLRV‐1, GLRV‐2, GLRV‐3 and GLRV‐4) were isolated in our laboratory from leafroll diseased grapevines. Polyclonal antibodies raised against these particles were useful for their characterization and their detection in infected plants.The coat proteins of these four serotypes were ...
Zimmermann, D., Bass, P., Legin, R., Walter, Bernard   +3 more
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