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| Calegario,Renata Faier; Ferreira,Sávio de Siqueira; Andrade,Eduardo Chumbinho de; Zerbini,Francisco Murilo. |
| The objective of this work was the biological and molecular characterization of a begomovirus detected in São Joaquim de Bicas, Minas Gerais, Brazil, named TGV-[Bi2], by determining its host range, complete nucleotide sequence and phylogenetic relationships with other begomoviruses. Biological characterization consisted of a host range study using either sap inoculation or particle bombardment as inoculation methods. The yellow spot virus can infect plants in Solanaceae and Amaranthaceae, including economically importat crops as sweet pepper, and weeds as Datura stramonium and Nicotiana silvestris. For the molecular characterization, the full-length genome (DNA-A and DNA-B) was amplified, cloned and completely sequenced. Sequence comparisons and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Bemisia tabaci; ToYSV; Molecular biology; Geminivirus; Whitefly. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007000900016 |
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| Basso,Marcos Fernando; Pereira,Álvaro Júlio; Pereira,Hermano Monteiro de Barros; Ramos,Humberto Josué de Oliveira; Dantas,Jorge Luiz Loyola; Fontes,Elizabeth Pacheco Batista; Andrade,Eduardo Chumbinho de; Zerbini,Francisco Murilo. |
| The objective of this work was to produce a polyclonal antiserum against the coat protein (CP) of Papaya lethal yellowing virus (PLYV) and to determine its specificity and sensibility in the diagnosis of the virus, as well as to evaluate the genetic resistance to PLYV in papaya (Carica papaya) accessions and to investigate the capacity of the two-spotted spider mite Tetranychus urticae to acquire and transmit PLYV to the plants. Sixty-five papaya accessions were evaluated. For each accession, ten plants were mechanically inoculated using PLYV-infected plant extracts, and three plants were mock inoculated with phosphate buffer alone and used as negative controls. Ninety days after inoculation, newly-emerging systemic leaves were collected from the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carica papaya; Elisa; Genetic resistance; Plant breeding; PLYV; Two-spotted spider mite.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000200097 |
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| Silva,Suely Xavier de Brito; Laranjeira,Francisco Ferraz; Andrade,Eduardo Chumbinho de; Almeida,Décio de Oliveira. |
| Em duas regiões da Bahia - Litoral Norte (LN) e Recôncavo Baiano (RB) quantificaram-se a dinâmica espaço-temporal da infestação de plantas cítricas pelo ácaro Brevipalpus phoenicis. Dez pomares de cada região foram avaliados mensalmente (de abril de 2008 a fevereiro de 2011), nos quais 21 plantas tiveram três frutos/planta vistoriados com lupa de 10x para registrar a presença ou ausência do ácaro. A proporção média de plantas infestadas variou entre 0,38 e 1,0. Em frutos, a proporção mínima de infestação foi 0,10 e máxima de 0,73 no LN e 0,66 no RB. O processo de infestação foi sazonal, com mais unidades infestadas na primavera-verão (Nemenyi, p<0,05). A análise de densidade espectral mostrou a ocorrência de dois tipos de ciclos: um com período... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vetor do VLCi; Padrão espacial; Sazonalidade da infestação. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000100012 |
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| Venturini,Marcela Tonini; Araújo,Taylane da Silva; Abreu,Emanuel Felipe Medeiros; Andrade,Eduardo Chumbinho de; Santos,Vanderlei da Silva; Silva,Marcos Roberto da; Oliveira,Eder Jorge de. |
| ABSTRACT Despite the widespread distribution of the Cassava common mosaic virus (CsCMV) in Brazil, little is known about the losses it causes in yield. The effect of CsCMV on different varieties was evaluated by reference to several agronomic traits. Four field trials were established in 2012/2013 and 2013/2014 using six varieties of cassava. Following mechanical inoculation with CsCMV, the presence of the virus was confirmed using the ELISA assay. The evaluated traits were plant height (PH), dry matter content (DMC), harvest index (HI), aerial part yield (APY), root yield (RoY), and starch yield (StY) in both inoculated and non-inoculated plants. Overall, the presence of the virus contributed little to the reduction in PH, HI, and DMC across the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta Crantz; Viruses; Root yield; Disease. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000600520 |
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