Tolerance and Resistance to Viruses and Their Vectors in
            <i>Vitis</i>
            sp.: A Virologist’s Perspective of the Literature

Oliver, Jonathan E.; Fuchs, Marc

doi:10.5344/ajev.2011.11036

Cited by 51 publications

(28 citation statements)

References 42 publications

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“…Currently, more than 60 different viruses belonging to nearly 30 different genera have been documented in grapevines (108,126). On a worldwide basis, more viruses have been identified in grapevines than in any other woody perennial crop.…”

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confidence: 99%

Grapevine Leafroll: A Complex Viral Disease Affecting a High-Value Fruit Crop

et al. 2014

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Grapevine (Vitis spp.) is one of the most widely grown fruit crops in the world. It is a deciduous woody perennial vine for which the cultivation of domesticated species began approximately 6,000 to 8,000 years ago in the Near East. Grapevines are broadly classified into red- and white-berried cultivars based on their fruit skin color, although yellow, pink, crimson, dark blue, and black-berried cultivars also exist. Grapevines can be subject to attacks by many different pests and pathogens, including graft-transmissible agents such as viruses, viroids, and phytoplasmas. Among the virus and virus-like diseases, grapevine leafroll disease (GLD) is by far the most widespread and economically damaging viral disease of grapevines in many regions around the world. The global expansion of the grape and wine industry has seen a parallel increase in the incidence and economic impact of GLD. Despite the fact that GLD was recognized as a potential threat to grape production for several decades, our knowledge of the nature of the disease is still quite limited due to a variety of challenges related to the complexity of this virus disease, the association of several distinct GLD-associated viruses, and contrasting symptoms in red- and white-berried cultivars. In view of the growing significance of GLD to wine grape production worldwide, this feature article provides an overview of the state of knowledge on the biology and epidemiology of the disease and describes management strategies currently deployed in vineyards.

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Grapevine Leafroll: A Complex Viral Disease Affecting a High-Value Fruit Crop

et al. 2014

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“…2015 DOI: 10.1590/S0100-204X2015000700004 propagativo comprovadamente livre de patógenos (Maliogka et al, 2015). Outras práticas de manejo, que incluiriam o plantio de cultivares e porta-enxertos resistentes a vírus, não se aplicam, uma vez que não há resistência genética a vírus em cultivares comerciais de videira (Oliver et al, 2011). Em razão disso e por ser muito frequente a incidência de vírus nas principais regiões vitícolas brasileiras (Catarino et al, 2015), uma alternativa seria, em determinadas situações, a convivência com os vírus no vinhedo.…”

Section: Introductionunclassified

Desempenho agronômico de videiras com e sem sintomas de viroses, e comparação molecular de isolados virais

Nascimento

Fajardo

Eiras

et al. 2015

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar os efeitos de viroses em videiras sintomáticas e assintomáticas sobre as variáveis agronômicas relacionadas ao vigor das plantas e à qualidade enológica da uva, e comparar os isolados virais obtidos nessas duas condições. Realizaram-se dois experimentos com quatro cultivares. Todas as plantas foram indexadas, por meio da reação em cadeia da polimerase via transcrição reversa (RT-PCR) em tempo real, quanto à provável ocorrência dos seguintes vírus: Grapevine virus A (GVA), Grapevine virus B (GVB), Grapevine virus D (GVD), Grapevine leafroll-associated virus (GLRaV-1 ao -4, GLRaV-4 estirpe 5), Grapevine rupestris stem pitting-associated virus (GRSPaV) e Grapevine fleck virus (GFkV). As variáveis avaliadas foram: número de gemas brotadas e não brotadas, número de ramos com ou sem cachos, número total de gemas, número de cachos, massa de cachos frescos, massa total de bagas, massa do engaço, número de bagas por cacho, massa média de baga, sólidos solúveis totais, acidez total titulável, pH, massa de ramos podados ou diâmetros do tronco do porta-enxerto e da copa. Os efeitos negativos foram mais pronunciados nas plantas com sintomas de viroses; no entanto, constatou-se frequentemente que plantas sem sintomas também estavam infectadas. A análise molecular de GRSPaV, GVA e GLRaV-2, isolados de plantas sintomáticas e assintomáticas, resultou em alta percentagem de identidade de nucleotídeos entre isolados homólogos.Termos para indexação: Grapevine, Vitis, complexo do lenho rugoso, enrolamento-da-folha, PCR em tempo real. Agronomic performance of grapevines with and without virus symptoms, and molecular comparison of viral isolatesAbstract -The objective of this work was to evaluate the effect of viroses in symptomatic and asymptomatic grapevines on the agronomic variables related to the plant vigor and the enological quality of grapes, and to compare viral isolates obtained from these two conditions. Two experiments were performed with four cultivars. All plants were indexed by real time, reverse transcription-polymerase chain reaction (RT-PCR) for the probable occurrence of the following viruses: Grapevine virus A (GVA), Grapevine virus B (GVB), Grapevine virus D (GVD), Grapevine leafroll-associated virus (GLRaV-1 to -4, GLRaV-4 strain 5), Grapevine rupestris stem pitting-associated virus (GRSPaV), and Grapevine fleck virus (GFkV). The evaluated variables were: number of buds burst and not burst, number of branches with or without bunches, total number of buds, number of bunches, fresh bunch weight, total berry weight, rachis weight, number of berries per bunch, average berry weight, total soluble solids, total titratable acidity, pH, pruned branch weight, or rootstock and scion trunk diameters. The negative effects were more pronounced on the plants with virus symptoms; however, it was observed that plants without symptoms were also often infected. The molecular analysis of GRSPaV, GVA, and GLRaV-2, isolates from symptomatic and asymptomatic plants, resulted in a high perc...

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“…nematodes) areas reduces local and long-distance dispersal of viruses (laIMeR et al, 2009;VIllaTe et al, 2008). Measures such as rouging of symptomatic grapevines and possibly adjacent plants (and removing any remaining roots), chemical or biological control or management of insect-or nematode-vector, and cross-protection and conventional or transgenic grapevines tolerant or resistant to viruses or nematode-vector (alMeIDa et al, 2013;aTallah et al, 2012;Bell et al, 2009;FuchS et al, 2007;GaMBINO et al, 2010;KOMAR et al, 2008;OLIVER;FUCHS, 2011) are possible strategies for viral disease management. The nematode chemical control is often inefficient, environmentally improper and harmful to humans, while transgenic plants may represent a possible choice (laIMeR et al, 2009;MALIOGKA et al, 2015a).…”

Section: Advances In Management Strategiesmentioning

confidence: 99%

“…siRNa-mediated engineered resistance or expression of artificial microRNas (amiRNa) has been a powerful tool, but is actually limited to experimental cultivars or model plant (laIMeR et al, 2009;OlIVeR;FuchS, 2011;ROuMI et al, 2012). Sources of genetic resistance to grapevine viruses are not available.…”

Section: Advances In Management Strategiesmentioning

confidence: 99%

Grapevine Virus Diseases:economic Impact and Current Advances in Viral Prospection and Management

2017

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ABSTRACT-Grapevine (Vitis spp.) is a major vegetative propagated fruit crop with high socioeconomic importance worldwide. It is susceptible to several graft-transmitted agents that cause several diseases and substantial crop losses, reducing fruit quality and plant vigor, and shorten the longevity of vines. The vegetative propagation and frequent exchanges of propagative material among countries contribute to spread these pathogens, favoring the emergence of complex diseases. Its perennial life cycle further accelerates the mixing and introduction of several viral agents into a single plant. currently, approximately 65 viruses belonging to different families have been reported infecting grapevines, but not all cause economically relevant diseases. The grapevine leafroll, rugose wood complex, leaf degeneration and fleck diseases are the four main disorders having worldwide economic importance. In addition, new viral species and strains have been identified and associated with economically important constraints to grape production. In Brazilian vineyards, eighteen viruses, three viroids and two virus-like diseases had already their occurrence reported and were molecularly characterized. Here, we review the current knowledge of these viruses, report advances in their diagnosis and prospection of new species, and give indications about the management of the associated grapevine diseases. Index terms: Vegetative propagation, plant viruses, crop losses, berry quality, next-generation sequencing. VIROSES EM VIDEIRAS: IMPACTO ECONÔMICO E RECENTES AVANÇOS NA PROSPECÇÃO DE VÍRUS E MANEJO DAS DOENÇAS DE ORIGEM VIRALRESUMO-a videira (Vitis spp.) é propagada vegetativamente e considerada uma das principais culturas frutíferas por sua importância socioeconômica mundial. ela é suscetível a vários agentes transmitidos por meio da enxertia, os quais causam diversas doenças e significativas perdas na produtividade e produção, redução na qualidade dos frutos, no vigor da planta e na longevidade dos vinhedos. A propagação vegetativa e o frequente intercâmbio de material propagativo entre países contribuem para a disseminação destes patógenos, favorecendo a emergência de doenças complexas. Seu ciclo de vida perene acelera ainda mais a mistura e a introdução de vários agentes virais em uma mesma planta. Atualmente, aproximadamente 65 vírus pertencentes a diferentes famílias foram reportados infectando videiras, embora nem todos causem doenças economicamente relevantes. as viroses do enrolamento da folha, complexo do lenho rugoso, degenerescência e mancha-das-nervuras da videira são as quatro principais desordens que têm importância econômica mundial. Além disso, novas espécies e estirpes virais foram identificadas e associadas a limitações economicamente importantes para a produção de uvas. Em vinhedos brasileiros, dezoito espécies virais, três viroides e duas doenças semelhantes a viroses já tiveram sua ocorrência reportada e foram molecularmente caracterizados. aqui, nós revisamos o conhecimento atual dessas viroses, os recentes av...

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Tolerance and Resistance to Viruses and Their Vectors in Vitis sp.: A Virologist’s Perspective of the Literature

Cited by 51 publications

References 42 publications

Grapevine Leafroll: A Complex Viral Disease Affecting a High-Value Fruit Crop

Grapevine Leafroll: A Complex Viral Disease Affecting a High-Value Fruit Crop

Desempenho agronômico de videiras com e sem sintomas de viroses, e comparação molecular de isolados virais

Grapevine Virus Diseases:economic Impact and Current Advances in Viral Prospection and Management

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