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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 5
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Absolute quantification of grapevine leafroll-associated virus 4 by Taqman real time RT-PCR in infected grapevines. Repositório Alice
CATARINO, A.M.; FAJARDO, T. V. M.; PIO-RIBEIRO, G.; NICKEL, O.; REVERS, L. F..
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Closteroviridae; Ampelovirus; Enrolamento da videira; Quantificação; Folha; Contaminação; Viticultura; Uva; Doença de planta; Vírus; Genética.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/978748
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MOLECULAR VARIABILITY OF THREE GENES OF POTATO VEIN YELLOW VIRUS INFECTING Solanum tuberosum, USING SINGLE STRAND CONFORMATIONAL POLYMORPHISM Acta biol.Colomb.
CUBILLOS-ABELLO,Karen Andrea; GUZMÁN BARNEY,María Mónica.
Potato yellow vein virus (PYVV), a virus with tripartite RNA (ss+) genome is classified as member of the genus Crinivirus within the family Closteoviridae. PYVV is the causal agent of potato yellow vein disease (PYVD) with yield loss between 25 %-50 % in field. Single strand conformational polymorphism (SSCP) has been reported to estimate variability in different viruses' species. In this study, the molecular variability of PYVV analyzed by SSCP patterns of three genes: major capsid protein (CP), minor capsid protein (CPm), and heat shock protein (Hsp70) obtained from 60 virus isolates from potato plants expressing PYVD. Leaves collected in Nariño, Colombia from 30 Solanum tuberosum Phureja Group (PhG) and 30 from the Andigena Group (AG). Genes amplified...
Tipo: Journal article Palavras-chave: Closteroviridae; Potato; Variability; Viral proteins.
Ano: 2015 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2015000100026
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No evidence of transmission of grapevine leafroll-associated viruses by phylloxera (Daktulosphaira vitifoliae). Repositório Alice
WISTROM, C. M.; BLAISDELL, G. K.; WUNDERLICH, L. R.; BOTTON, M.; ALMEIDA, R. P. P.; DAANE, K. M..
Abstract Grapevine leafroll disease is associated with several species of phloem-limited grapevine leafrollassociated viruses (GLRaV), some of which are transmitted by mealybugs and scale insects. The grape phylloxera, Daktulosphaira vitifoliae (Fitch) Biotype A (Hemiptera: Phylloxeridae), is a common vineyard pest that feeds on the phloem of vine roots. There is concern that these insects may transmit one or more GLRaV species, particularly GLRaV-2, a species in the genus Closterovirus. A field survey was performed in vineyards with a high incidence of grapevine leafroll disease and D. vitifoliae was assessed for acquisition of GLRaV. In greenhouse experiments, the ability of D. vitifoliae to transmit GLRaV from infected root sections or vines to...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Grapevine leafroll disease; Uva; Doenca de planta; Virus; Praga de planta; Cochonilha; Inseto; Videira; Phylloxera; Daktulosphaira vitifoliae; Grapevine leafroll-associated virus; Closteroviridae.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1055139
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Potential new sources of genetic resistance in melon to Cucurbit yellow stunting disorder virus National Institute of Agronomic Research
McCreight, J.D.; Wintermantel, W.M..
Cucurbit yellow stunting disorder virus (CYSDV) emerged as a new pathogen on fall melons (Cucumis melo L.) in the western U.S. and Mexico in 2006, recurred in 2007, and is now firmly established in the region. Replicated, naturally infected field tests of genetically diverse melon cultigens were evaluated for resistance to CYSDV in Imperial Valley, Calif. and Yuma, Ariz. in 2006 and 2007. Melon Plant Introduction (PI) 313970 expressed high-level resistance to CYSDV at both locations in both years. Three sources of TGR-1551 (= PI 482420) exhibited high-level resistance to the California strain of CYSDV in 2007. Three of 96 accessions from India are potential sources of unique resistance to CYSDV: Ames 20203, PI 614185, and PI 614213 each had one individual...
Tipo: Conference Paper Palavras-chave: Cucumis melo; CYSDV; Crinivirus; Closteroviridae; Closterovirus; Disease resistance; RT-PCR.
Ano: 2008 URL: http://hdl.handle.net/2174/210
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Simultaneous detection of Brazilian isolates of grapevine viruses by TaqMan real-time RT-PCR. Repositório Alice
DUBIELA, C. R.; FAJARDO, T. V. M.; SOUTO, E. R.; NICKEL, O.; EIRAS, M.; REVERS, L. F..
The aim of this work was to evaluate the efficiency of real-time RT-PCR for detection of different isolates of ten important virus species that infect grapevines in Brazil: Grapevine leafroll-associated virus (GLRaV-1, -2, -3 and -5), Grapevine virus A (GVA), Grapevine virus B (GVB), Grapevine virus D (GVD), Grapevine rupestris stem pitting-associated virus (GRSPaV), Grapevine fleck virus (GFkV) and Grapevine fanleaf virus (GFLV). The reactions consisted of individual (simplex) and simultaneous (duplex) virus detections. Thirty six grapevine accessions, regenerated after thermotherapy and tissue culture treatments, have been analysed. All the above-mentioned viruses were sensitively detected in simplex reactions in samples infected with different virus...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Diagnóstico; Betaflexiviridae; Closteroviridae; Viticultura; Uva; Doença de planta; Vírus.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/960405
Registros recuperados: 5
Primeira ... 1 ... Última
 

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