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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
15/09/2010 |
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Data da última atualização: |
02/05/2019 |
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Autoria: |
ALEXANDRE, T. M.; RIBEIRO, Z. M. A.; CRAVEIRO, S. R.; CUNHA, F.; FONSECA, I. C. B.; MOSCARDI, F.; CASTRO, M. E. B. |
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Afiliação: |
TALITA M. ALEXANDRE, CNPSo - UFPR; ZILDA MARIA DE ARAUJO RIBEIRO, CENARGEN; SALUANA R. CRAVEIRO, CENARGEN - UNB; FABIANE CUNHA, CNPSo - UFPR; INES CRISTINA B. FONSECA, UEL; FLÁVIO MOSCARDI, UEL; MARIA ELITA B. CASTRO, UEL. |
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Título: |
Evaluation of seven viral isolates as potential biocontrol agents against Pseudoplusia includens (Lepidoptera: Noctuidae) caterpillars. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Journal of Invertebrate Pathology, Amsterdan, v. 105, n. 1, p. 98-104, Sept. 2010. |
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DOI: |
10.1016/j.jip.2010.05.015 |
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Idioma: |
Português |
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Conteúdo: |
The caterpillar Pseudoplusia includens (Walker, 1857) (Lepidoptera, Noctuidae), known as soybean looper, is a pest that has recently assumed greater importance in soybean in Brazil. Isolates of nucleopolyhedroviruses (NPVs) of this pest have been identified from cotton in Guatemala and soybean farms in Brazil, providing an interesting perspective of potential use of viral insecticide against the insect in lieu to chemical insecticides. With the objective to contribute to the characterization studies of this virus, morphological and molecular analyses and biological activity were carried out with seven P. includens viral isolates (I-A to I-G). Electron microscopy of viral samples, purified from macerated infected larvae, showed particles with typical morphology of the Baculoviridae family, genus Alphabaculovirus (Nucleopolyhedrovirus ? NPV) presenting virions with only a single nucleocapsid per envelope (SNPV) occluded in a protein matrix, forming occlusion bodies (OB). This virus was then classified as P. includens single nucleopolyhedrovirus (PsinSNPV). OB particles analyzed in SDS?polyacrylamide gel showed an intense band corresponding in size to NPV polyhedrin protein. DNA restriction profiles of the PsinSNPV isolates showed differences in the fragment size and number suggesting the existence of genotypic variants, except between I-E and I-F profiles that were similar. Among the isolates tested for infectivity against P. includens, I-A, I-E and I-F were the most virulent. Survival times (ST50) varied according to viral concentration, with significant differences among isolates for the three higher concentrations. MenosThe caterpillar Pseudoplusia includens (Walker, 1857) (Lepidoptera, Noctuidae), known as soybean looper, is a pest that has recently assumed greater importance in soybean in Brazil. Isolates of nucleopolyhedroviruses (NPVs) of this pest have been identified from cotton in Guatemala and soybean farms in Brazil, providing an interesting perspective of potential use of viral insecticide against the insect in lieu to chemical insecticides. With the objective to contribute to the characterization studies of this virus, morphological and molecular analyses and biological activity were carried out with seven P. includens viral isolates (I-A to I-G). Electron microscopy of viral samples, purified from macerated infected larvae, showed particles with typical morphology of the Baculoviridae family, genus Alphabaculovirus (Nucleopolyhedrovirus ? NPV) presenting virions with only a single nucleocapsid per envelope (SNPV) occluded in a protein matrix, forming occlusion bodies (OB). This virus was then classified as P. includens single nucleopolyhedrovirus (PsinSNPV). OB particles analyzed in SDS?polyacrylamide gel showed an intense band corresponding in size to NPV polyhedrin protein. DNA restriction profiles of the PsinSNPV isolates showed differences in the fragment size and number suggesting the existence of genotypic variants, except between I-E and I-F profiles that were similar. Among the isolates tested for infectivity against P. includens, I-A, I-E and I-F were the most virulent.... Mostrar Tudo |
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Thesagro: |
Baculovirus; Controle biológico; Lagarta; Pseudoplusia Includens; Pupa; Soja; Virus. |
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Thesaurus Nal: |
Biological control; Insect control; Insect larvae; Soybeans; Virulence. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02660naa a2200349 a 4500
001 1862327
005 2019-05-02
008 2010 bl uuuu u00u1 u #d
024 7 $a10.1016/j.jip.2010.05.015$2DOI
100 1 $aALEXANDRE, T. M.
245 $aEvaluation of seven viral isolates as potential biocontrol agents against Pseudoplusia includens (Lepidoptera$bNoctuidae) caterpillars.
260 $c2010
520 $aThe caterpillar Pseudoplusia includens (Walker, 1857) (Lepidoptera, Noctuidae), known as soybean looper, is a pest that has recently assumed greater importance in soybean in Brazil. Isolates of nucleopolyhedroviruses (NPVs) of this pest have been identified from cotton in Guatemala and soybean farms in Brazil, providing an interesting perspective of potential use of viral insecticide against the insect in lieu to chemical insecticides. With the objective to contribute to the characterization studies of this virus, morphological and molecular analyses and biological activity were carried out with seven P. includens viral isolates (I-A to I-G). Electron microscopy of viral samples, purified from macerated infected larvae, showed particles with typical morphology of the Baculoviridae family, genus Alphabaculovirus (Nucleopolyhedrovirus ? NPV) presenting virions with only a single nucleocapsid per envelope (SNPV) occluded in a protein matrix, forming occlusion bodies (OB). This virus was then classified as P. includens single nucleopolyhedrovirus (PsinSNPV). OB particles analyzed in SDS?polyacrylamide gel showed an intense band corresponding in size to NPV polyhedrin protein. DNA restriction profiles of the PsinSNPV isolates showed differences in the fragment size and number suggesting the existence of genotypic variants, except between I-E and I-F profiles that were similar. Among the isolates tested for infectivity against P. includens, I-A, I-E and I-F were the most virulent. Survival times (ST50) varied according to viral concentration, with significant differences among isolates for the three higher concentrations.
650 $aBiological control
650 $aInsect control
650 $aInsect larvae
650 $aSoybeans
650 $aVirulence
650 $aBaculovirus
650 $aControle biológico
650 $aLagarta
650 $aPseudoplusia Includens
650 $aPupa
650 $aSoja
650 $aVirus
700 1 $aRIBEIRO, Z. M. A.
700 1 $aCRAVEIRO, S. R.
700 1 $aCUNHA, F.
700 1 $aFONSECA, I. C. B.
700 1 $aMOSCARDI, F.
700 1 $aCASTRO, M. E. B.
773 $tJournal of Invertebrate Pathology, Amsterdan$gv. 105, n. 1, p. 98-104, Sept. 2010.
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