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| Aguiar,Raimundo Wagner de Souza; Rodrigues,Adelmo; Portella,Augustus Caeser Franke; Lopes,Magnolia de Mendonça; Lima,Mirtes Freitas; Resende,Renato de Oliveira; Nagata,Tatsuya. |
| Watermelon (Citrullus lanatus) cultivated in almost all tropical and subtropical regions of the world, has its largest output in China, and then, according to FAO data, Turkey, Iran and Brazil, being one of the main crops cultivated in State of Tocantins, Brazil. In this work was investigated the occurrence and distribution of the watermelon viruses, totaling 752 samples taken in a stratified experimental design in four representative regions of production: Gurupi (150), Lagoa da Confusao (232), Formoso do Araguaia (265) and Porto Nacional (105). The sampling and collecting the leaves of plants with the presence of symptoms were performed once a week during the entire cultivation cycle. As a result, were observed by Dot-ELISA method, different types of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Watermelon; Citrullus lanatus; Potyvirus; Cucumovirus; Tospovirus; Serological assay. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000200192 |
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| Melo Filho,Péricles de Albuquerque; Nagata,Tatsuya; Dusi,André Nepomuceno; Buso,José Amauri; Torres,Antonio Carlos; Eiras,Marcelo; Resende,Renato de Oliveira. |
| Garlic viruses often occur in mixed infections under field conditions. In this study, garlic samples collected in three geographical areas of Brazil were tested by Dot-ELISA for the detection of allexiviruses using monoclonal specific antibodies to detect Garlic virus A (GarV-A), Garlic virus B (GarV-B), Garlic virus C (GarV-C) and a polyclonal antiserum able to detect the three virus species mentioned plus Garlic virus D (GarV-D). The detected viruses were biologically isolated by successive passages through Chenopodium quinoa. Reverse Transcriptase Polimerase Chain Reaction (RT-PCR) was performed using primers designed from specific regions of the coat protein genes of Japanese allexiviruses available in the Genetic Bank of National Center of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allium sativum; Virus detection; Coat protein; Dot-ELISA; RT-PCR. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2004000800002 |
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| Oliveira,Elizabeth de; Resende,Renato de Oliveira; Giménez Pecci,María de la Paz; Laguna,Irma Graciela; Herrera,Patricia; Cruz,Ivan. |
| O objetivo deste trabalho foi avaliar a incidência de viroses e enfezamentos e estimar as perdas causadas por enfezamentos na cultura do milho safrinha. Os diagnósticos baseados em sintomas foram confirmados por PCR ou RTPCR. Em todas as lavouras, foram identificadas plantas com sintomas de enfezamentos, em incidência de 6,2% a 49,9% (média de 20,7%). Na identificação de insetos vetores desses patógenos, a cigarrinha Dalbulus maidis foi detectada em 20 lavouras das 24 amostradas, constituindo 66,6% do total de espécimens de cigarrinhas coletadas. A perda potencial causada pelos enfezamentos no período foi estimada em cerca de 16,5 milhões de dólares. A ocorrência de plantas com sintomas de "Maize rayado fino virus" e "Maize dwarf mosaic virus" foi baixa e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Espiroplasma; Doença das plantas. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003000100003 |
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