Nuclear Polyhedrosis Virus
Mostrando 1-12 de 291 artigos, teses e dissertações.
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1. Comparative bio-efficacy of nuclear polyhedrosis virus (NPV) and Spinosad against American bollwormm, Helicoverpa armigera (Hubner)
ABSTRACT American bollworm (ABW), Helicoverpa armigera (Hubner), is considered as a major pest of cotton, Gossypium hirsutum, all over the globe. Due to its destructive feeding nature and continuous consumption of the same chemicals, it devolved resistant against many insecticides. Therefore, a combined application of bio- and synthetic-pesticide need to eva
Rev. Bras. entomol.. Publicado em: 13/01/2020
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2. Estudo de parâmetros cinéticos do sistema comercial Bac-to-Bac para produção de proteínas recombinantes
O sistema de expressao de proteinas recombinantes em celulas de inseto/baculovirus (BEVS) foi descrito e introduzido em 1983, e desde entao tornou-se uma ferramenta poderosa para a producao de proteinas recombinantes de interesse biotecnologico. O objetivo deste trabalho foi estudar os parametros cineticos do sistema Bac-to-BacR Baculovirus Expression (Invit
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2011
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3. Abortive cell culture infections of nuclear polyhedrosis viruses as model systems for host specificity.
Descreve-se a proliferacao do virus e o efeito citopatico numa infeccao abortiva que envolve o virus de poliedrose nuclear de Autographa californica (AcMNPV) e uma linhagem de Bombyx mori. Os resultados indicam que o AcMNPV acarreta efeitos citopaticos (CPE) complexos e raros nas calulas do B. mori. Tal fato envolve a formacao de sacos e protrusoes, alem da
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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4. Potencial do baculovirus de Autographa californica (Speyer) no controle de Chrysodeixis includens (Walker) e Anticarsia gemmatalis Hubner (Lep.: Noctuidae).
Avaliou-se, em laboratorio, o potencial do virus de poliedrose nuclear de Autographa californica (VPNAc) no controle de Chrysodeixis includens e Anticarsia gemmatalis (Lepidoptera: Noctuidae), atraves da selecao de variantes virulentos, apos passagens seriadas do VPNAc por A. gemmatalis e C. includens. Verificou-se que o VPNAc foi infectivo as duas especies,
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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5. Efeito de doses de Baculovirus anticarsia no consumo e na utilizacao de alimento por larvas de Anticarsia gemmatalis Hubner (Lepidoptera: Noctuidae).
Foram avaliadas quatro doses de Baculovirus anticarsia, ou seja: 0,5, 2,7, 15 e 80 corpos poliedricos de inclusao (CPI)/mm cubico de superficie foliar, visando verificar se a relacao existente entre doses e mortalidade de Anticarsia gemmatalis tambem se reflete no consumo e na utilizacao do alimento por essa especie. Todas as doses testadas reduziram signifi
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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6. Effect of a nuclear polyhedrosis virus on Spodoptera frugiperda (Smith) (Lepidoptera:noctuidae) larvae, its damage and yield of maize crop.
The efficiency of Baculovirus in a wettable powder formulation to control the fall armyworm Spodoptera frugiperda (Smith) was evaluated using variations of the recommended dose of 50 grams per hectare (2.5 x 1011 polyhedron inclusion bodies - PIB ha-1): 50 or 100 g ha-1 applied once, and variations of two applications at seven-day intervals, of 25+25, 25 + 5
Revista Brasileira de Milho e Sorgo. Publicado em: 2011
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7. Physical Map of the DNA Genome of Autographa californica Nuclear Polyhedrosis Virus †
A physical map of the 88 × 106 dalton, circular DNA genome of Autographa californica nuclear polyhedrosis virus was constructed. The complete order of BamHI and XmaI restriction enzyme sites was determined. The EcoRI and HindIII fragments were partially ordered, and their general locations, relative to the BamHI and XmaI maps, were determined. Alterations i
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8. α-Amanitin-Resistant Viral RNA Synthesis in Nuclei Isolated from Nuclear Polyhedrosis Virus-Infected Heliothis zea Larvae and Spodoptera frugiperda Cells
[3H]RNA was synthesized in nuclei isolated at various times postinfection from the fat bodies of Heliothis zea larvae infected with H. zea nuclear polyhedrosis virus and from cultured Spodoptera frugiperda cells infected with Autographa californica nuclear polyhedrosis virus. To detect virus-specific RNA synthesis, the [3H]RNA was hybridized to denatured vir
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9. Characterization of Nuclear Polyhedrosis Virus DNAs
The nuclear polyhedrosis virus DNAs characterized and compared in this study consist of the singly-enveloped nucleocapsids (SNPV) of Trichoplusia ni and the bundles of nucleocapsids common to a single envelope (MNPV) from Spodoptera frugiperda and Rachiplusia ou. The SNPV and MNPV DNAs are very similar in hydrodynamic properties and molecular weights. In add
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10. Restriction endonuclease analysis to distinguish two closely related nuclear polyhedrosis viruses: Autographa californica MNPV and Trichoplusia ni MNPV.
Restriction endonuclease fragment patterns of the deoxyribonucleic acid genomes of Autographa californica nuclear polyhedrosis virus (multiply embedded type) and Trichoplusia ni nuclear polyhedrosis virus (multiply embedded type) demonstrate that the two viruses are distinct but closely related variants.
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11. Conservation of genome organization in two multicapsid nuclear polyhedrosis viruses.
The genome of the multicapsid nuclear polyhedrosis virus of Orgyia pseudotsugata was mapped by examining overlapping HindIII fragments from cosmid clones which had been constructed from partial HindIII digests of viral DNA. Five OpMNPV cosmid clones containing fragments encompassing the entire OpMNPV genome were hydridized to blots of DNA from the multicapsi
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12. Analysis of the Spodoptera frugiperda Nuclear Polyhedrosis Virus Genome by Restriction Endonucleases and Electron Microscopy
Restriction endonuclease analysis was used to differentiate between four strains of Spodoptera frugiperda nuclear polyhedrosis virus from different geographical areas. In addition, partial denaturation was performed, and a partial denaturation map was constructed for the Ohio strain of this virus.