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Registro Completo |
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
26/04/2005 |
Data da última atualização: |
27/02/2020 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
LEVY, S. M.; FALLEIROS, A. M. F.; MOSCARDI, F.; GREGÓRIO, E. A. |
Afiliação: |
CNPSO. |
Título: |
The epithelial cell surface along the midgut of susceptible and resistant larvae of Anticarsia gemmatalis (Lepidoptera: Noctuidae) to its nucleopolyhedrovirus. |
Ano de publicação: |
2003 |
Fonte/Imprenta: |
In: ANNUAL MEETING SOCIETY FOR INVERTEBRATE PATHOLOGY, 36., 2003, Burlington. Program and abstracts... Burlington, 2003. |
Páginas: |
p. 81. |
Idioma: |
Inglês |
Conteúdo: |
A nucleopolyhedrovirus Anticarsia gemmatalis (AgMNPV) has been widely used as a microbial insecticide in soybean in Brazil. Over 1.6 million hectares have been treated with the AgMNPV in the season 2002/2003. The possibility of selecting field populations of A. gemmatalis resistant to the AgMNPV has been a concern. Although this phenomenon has not been detected in the field yet, a laboratory population of the insect submitted to selection pressure was selected for high resistance to this virus. The insect midgut is considered one of the most effective barriers against viral invasion into the hemocele. Our work aimed to verify if there are differences in the midgut structure, comparing the ultrastructure of the epithelial cell surface of uninfected susceptible (SL) and resistant (RL) A. gemmatalis larvae. The susceptible and resistant strains of A. gemmatalis were reared on artificial diet, under laboratory-controlled conditions at Embrapa, Londrina-PR, Brazil. Fourth instar larvae were used in this study. The midguts of SL, and RL were divided in proximal, medial and distal regions, processed and analyzed under transmission and scanning electron microscopes. The proximal midgut region of SL presented columnar cells with regular microvilli and apical cytoplasmic projections (smooth to irregular). The medial midgut region in SL showed sparse microvilli and large amount of cytoplasmic projections (usualli irregular). The cytoplasmic projections of the distal midgut region in SL were scarce and with membrane disruption. Few microapocrine secretory vesicles were released from the microvilli along the midgut length. The columnar cell surface at the different midgut regions in RL presented an increase in the number of microapocrine secretion as well as in the number of cytoplasmic projections among the microvilli. Many of the cytoplasmic projections exhibited smooth surface with few punctual membrane disruptions. Furthermore, the distal midgut region in RL presented large epithelial infolding with many smooth cytoplasmic projections. Our results show that there are morphological differences in the columnar cell surface along the midgut of SL and RL of A. gemmatalis, which may be related to the insect resistance to AgMNPV infection. This work has been supported by FAPESP and PRONEX (MCT/Finep/CNPq). MenosA nucleopolyhedrovirus Anticarsia gemmatalis (AgMNPV) has been widely used as a microbial insecticide in soybean in Brazil. Over 1.6 million hectares have been treated with the AgMNPV in the season 2002/2003. The possibility of selecting field populations of A. gemmatalis resistant to the AgMNPV has been a concern. Although this phenomenon has not been detected in the field yet, a laboratory population of the insect submitted to selection pressure was selected for high resistance to this virus. The insect midgut is considered one of the most effective barriers against viral invasion into the hemocele. Our work aimed to verify if there are differences in the midgut structure, comparing the ultrastructure of the epithelial cell surface of uninfected susceptible (SL) and resistant (RL) A. gemmatalis larvae. The susceptible and resistant strains of A. gemmatalis were reared on artificial diet, under laboratory-controlled conditions at Embrapa, Londrina-PR, Brazil. Fourth instar larvae were used in this study. The midguts of SL, and RL were divided in proximal, medial and distal regions, processed and analyzed under transmission and scanning electron microscopes. The proximal midgut region of SL presented columnar cells with regular microvilli and apical cytoplasmic projections (smooth to irregular). The medial midgut region in SL showed sparse microvilli and large amount of cytoplasmic projections (usualli irregular). The cytoplasmic projections of the distal midgut region in SL... Mostrar Tudo |
Thesagro: |
Baculovirus; Biologia; Controle Biológico; Praga de Planta; Soja. |
Thesaurus Nal: |
Soybeans. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 03122nam a2200229 a 4500 001 1467929 005 2020-02-27 008 2003 bl uuuu u00u1 u #d 100 1 $aLEVY, S. M. 245 $aThe epithelial cell surface along the midgut of susceptible and resistant larvae of Anticarsia gemmatalis (Lepidoptera$bNoctuidae) to its nucleopolyhedrovirus.$h[electronic resource] 260 $aIn: ANNUAL MEETING SOCIETY FOR INVERTEBRATE PATHOLOGY, 36., 2003, Burlington. Program and abstracts... Burlington$c2003 300 $ap. 81. 520 $aA nucleopolyhedrovirus Anticarsia gemmatalis (AgMNPV) has been widely used as a microbial insecticide in soybean in Brazil. Over 1.6 million hectares have been treated with the AgMNPV in the season 2002/2003. The possibility of selecting field populations of A. gemmatalis resistant to the AgMNPV has been a concern. Although this phenomenon has not been detected in the field yet, a laboratory population of the insect submitted to selection pressure was selected for high resistance to this virus. The insect midgut is considered one of the most effective barriers against viral invasion into the hemocele. Our work aimed to verify if there are differences in the midgut structure, comparing the ultrastructure of the epithelial cell surface of uninfected susceptible (SL) and resistant (RL) A. gemmatalis larvae. The susceptible and resistant strains of A. gemmatalis were reared on artificial diet, under laboratory-controlled conditions at Embrapa, Londrina-PR, Brazil. Fourth instar larvae were used in this study. The midguts of SL, and RL were divided in proximal, medial and distal regions, processed and analyzed under transmission and scanning electron microscopes. The proximal midgut region of SL presented columnar cells with regular microvilli and apical cytoplasmic projections (smooth to irregular). The medial midgut region in SL showed sparse microvilli and large amount of cytoplasmic projections (usualli irregular). The cytoplasmic projections of the distal midgut region in SL were scarce and with membrane disruption. Few microapocrine secretory vesicles were released from the microvilli along the midgut length. The columnar cell surface at the different midgut regions in RL presented an increase in the number of microapocrine secretion as well as in the number of cytoplasmic projections among the microvilli. Many of the cytoplasmic projections exhibited smooth surface with few punctual membrane disruptions. Furthermore, the distal midgut region in RL presented large epithelial infolding with many smooth cytoplasmic projections. Our results show that there are morphological differences in the columnar cell surface along the midgut of SL and RL of A. gemmatalis, which may be related to the insect resistance to AgMNPV infection. This work has been supported by FAPESP and PRONEX (MCT/Finep/CNPq). 650 $aSoybeans 650 $aBaculovirus 650 $aBiologia 650 $aControle Biológico 650 $aPraga de Planta 650 $aSoja 700 1 $aFALLEIROS, A. M. F. 700 1 $aMOSCARDI, F. 700 1 $aGREGÓRIO, E. A.
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Embrapa Soja (CNPSO) |
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Registros recuperados : 41 | |
4. | | LEVY, S. M.; FALLEIROS, A. M. F.; MOSCARDI, F.; GREGÓRIO, E. A. Is the nucleopolyhedrovirus of Anticarsia gemmatalis (AgMNPV) ineffective to infect AgMNPV resistant host larva midgut cells? In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004. p. 293. (Embrapa Soja. Documentos, 228). Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.Biblioteca(s): Embrapa Soja. |
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5. | | LEVY, S. M.; FALLEIROS, A. M. F.; BASSO, N. A.; MOSCARDI, F.; GREGÓRIO, E. A. Morfologia do intestino médio de Anticarsia gemmatalis, susceptível e resistente ao vírus da poliedrose nuclear (AgMNPV), em larvas controle e infectadas pelo virus. In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 9., 2005, Recife. Anais... Recife, 2005. p. 188.Biblioteca(s): Embrapa Soja. |
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6. | | LEVY, S. M.; MOSCARDI, F.; FALLEIROS, A. M. F.; SILVA, R. J.; GREGÓRIO, E. A. Morfometria do epitélio do intestino médio de Anticarsia gemmatalis (Hübner,1818): estudo comparativo entre larvas suscetíveis e resistentes ao AgMNPV. In: SICONBIOL, 10., 2007, Brasília, DF. Inovar para preservar a vida: [palestras e resumos]. Brasília, DF: Sociedade Entomológica do Brasil, 2007. 1 CD-ROM. Resumo pdf. 102.Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
Biblioteca(s): Embrapa Soja. |
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8. | | GARRETT, R. D.; CAMMELLI, F.; FERREIRA, J. N.; LEVY, S. A.; VALENTIM, J. F.; VIEIRA, I. Forests and sustainable development in the Brazilian Amazon: history, trends, and future prospects. Annual Review of Environment and Resources, v. 46, p. 2.1-2.28, 2021.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Acre; Embrapa Amazônia Oriental. |
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9. | | MATSUBARA, F. H.; MARQUES, C. R. G.; LEVY, S. M.; MOSCARDI, F.; FALLEIROS, A. M. F. Estudo dos hemócitos de larvas de Anticarsia gemmtalis (Hübner, 1818) (Lepidoptera: Noctuidae) suscetíveis e resistentes ao AgMNPV à microscopia eletrônica de varredura. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 22., 2008, Uberlândia. Ciência, tecnologia e inovação: anais. Viçosa, MG: UFV, 2008. 1 CD-ROM. Resumo 1314-2.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Soja. |
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12. | | CRUZ, N. A.; HOFFMANN-CAMPO, C. B.; LEVY, S. M.; FALLEIROS, A. M. F. Efeitos de variedades de soja no intestino médio de lagartas de Anticarsia gemmatalis (Hübner,1818) (Lepidoptera: Erebidae) resistentes ao vírus AgMNPV. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 26.; CONGRESSO LATINO-AMERICANO DE ENTOMOLOGIA, 9., Maceio, 2016. Anais... Brasília, DF: Embrapa, 2016. p. 128. Editores técnicos: Elio Cesar Guzzo, Marcus Vinicius Sampaio, Jader Braga Maia, Aldomário Santo Negrisoli Junior.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Soja. |
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14. | | LEVY, S. M.; FALLEIROS, A. M. F.; MOSCARDI, F.; GREGÓRIO, E. A. Differences in the peritrophic membrane of susceptible and resistant Anticarsia gemmatalis larvae to the insect nucleopolyhedrovirus (AgMNPV). In: INTERNATIONAL COLLOQUIUM ON INVERTEBRATE PATHOLOGY AND MICROBIAL CONTROL, 8.; INTERNATIONAL CONFERENCE ON BACILLUS THURINGIENSIS 6.; ANNUAL MEETING OF THE SIP, 35., 2002, Foz do Iguassu. Program and abstracts. Londrina: Embrapa Soja: Embrapa Recursos Genéticos e Biotecnologia: UEL: SIP, 2002. p. 43-44. (Embrapa Soja. Documentos, 183; Embrapa Recursos Genéticos e Biotecnologia, 73).Biblioteca(s): Embrapa Soja. |
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16. | | LEVY, S. M.; FALLEIROS, A. M. F.; MOSCARDI, F.; GREGÓRIO, E. A.; TOLEDO, L. A. Ultramorphology of digestive tract of Anticarsia gemmatalis (Hübner, 1818) (Lepidoptera: Noctuidae) at final larval development. Semina: Ciências Agrárias, Londrina, v. 29, n. 2, p. 313-322, abr./jun. 2008. Título em português: Ultramorfologia do trato digestivo de Anticarsia gemmatalis (Hübner, 1818) (Lepidoptera: Noctuidae) no final do desenvolvimento larval.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
Biblioteca(s): Embrapa Soja. |
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17. | | LEVY, S. M.; FALLEIROS, A. M. F.; MOSCARDI, F.; ANDRADE, F. G.; GREGÓRIO, E. A. Ultrastructure of the endocrine cels in the midgut of Anticarsia gemmatalis (Lepidoptera) larvae. Brazilian Journal of Morphological Sciences, São Paulo, v. 22, p. 189, 2005. Supplement. Edição dos Resumos do XX Congress of the Brazilian Society for Microscopy and Microanalysis, Águas de Lindóia, SP, Agosto, 2005.Biblioteca(s): Embrapa Soja. |
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18. | | MATSUBARA, F. H.; CRUZ, N. A.; LEVY, S. M.; MOSCARDI, F.; FALLEIROS, A. M. F. Histoquímica em hemócitos de larvas de Anticarsia gemmatalis (Hübner, 1818) (Lepidoptera: Noctuidae) suscetíveis e resistentes ao AgMNPV. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 22., 2008, Uberlândia. Ciência, tecnologia e inovação: anais. Viçosa, MG: UFV, 2008. 1 CD-ROM. Resumo 1314-1.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Soja. |
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19. | | LEVY, S. M.; FALLEIROS, A. M. F.; MOSCARDI, F.; GREGÓRIO, E. A.; TOLEDO, L. A. Morphological study of the hindgut in larvae of Anticarsia gemmatalis Hubner (Lepidoptera: Noctuidae). Neotropical Entomology, Londrina, v. 33, n. 4, p. 427-431, July/Aug. 2004.Biblioteca(s): Embrapa Soja. |
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Registros recuperados : 41 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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