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Biblioteca(s): |
Embrapa Trigo. |
Data corrente: |
05/05/2005 |
Data da última atualização: |
05/05/2005 |
Autoria: |
STEIN, J. L.; McCAFFERTY, W. P. |
Título: |
Diagnostic tables to the long-horned grashoppers and crickets of Indiana (Orthoptera: Ensifera). |
Ano de publicação: |
1975 |
Fonte/Imprenta: |
West Lafayette: Purdue University - Agricultural Experiment Station, 1975. |
Páginas: |
20 p. |
Série: |
(Research Bulletin, 921). |
Idioma: |
Inglês |
Thesagro: |
Entomologia; Taxonomia. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00506nam a2200157 a 4500 001 1848394 005 2005-05-05 008 1975 bl uuuu u0uu1 u #d 100 1 $aSTEIN, J. L. 245 $aDiagnostic tables to the long-horned grashoppers and crickets of Indiana (Orthoptera$bEnsifera). 260 $aWest Lafayette: Purdue University - Agricultural Experiment Station$c1975 300 $a20 p. 490 $a(Research Bulletin, 921). 650 $aEntomologia 650 $aTaxonomia 700 1 $aMcCAFFERTY, W. P.
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Registro Completo
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
04/04/2002 |
Data da última atualização: |
31/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - A |
Autoria: |
NAGATA, T.; INOUE-NAGATA, A. K.; LENT, J. van; GOLDBACH, R.; PETERS, D. |
Afiliação: |
TATATSUYA NAGATA, Department of Virology, Wageningen Agricultural University; ALICE KAZUKO INOUE NAGATA, CNPH; JAN VAN LENT, Department of Virology, Wageningen Agricultural University; ROB GOLDBACH, Department of Virology, Wageningen Agricultural University; DICK PETERS, Department of Virology, Wageningen Agricultural University. |
Título: |
Factors determining vector competence and specificity for transmission of tomato spotted wilt virus. |
Ano de publicação: |
2002 |
Fonte/Imprenta: |
Journal of General Virology, v. 83, n. 3, p. 663-671, mar. 2002. |
ISSN: |
1465-2099 |
DOI: |
10.1099/0022-1317-83-3-663 |
Idioma: |
Inglês |
Conteúdo: |
The competence of a Frankliniella occidentalis and a Thrips tabaci population to transmit Tomato spotted wilt virus (TSWV) was analysed. Adults of the F. occidentalis population transmitted this virus efficiently, whereas those of the thelytokous T. tabaci population failed to transmit. TSWV replicated in the midgut of the larvae of both populations after ingestion of virus; however, lower amounts accumulated in T. tabaci larvae than in F. occidentalis larvae. The virus was almost undetectable in T. tabaci adults, whereas high titres were readily detected in the F. occidentalis adults. The first infections in F. occidentalis larvae were detected by immunocytochemical studies in midgut epithelial and subsequently in midgut muscle cells, the ligaments, and finally in the salivary glands. The infections were weaker in the midgut epithelial and muscle cells of T. tabaci larvae, followed by an almost complete absence of any infection in the ligaments, and a complete absence in the salivary glands. Studies by electron microscopy revealed the budding of some virus particles from the basal membrane of midgut epithelial cells of F. occidentalis larvae into the extracellular space of the basal labyrinth. Enveloped virus particles were also seen in midgut muscle cells of F. occidentalis larvae. They were not discerned in epithelial and muscle cells of T. tabaci larvae and adults. This study showed that the rate of virus replication in the midgut and the extent of virus migration from the midgut to the visceral muscle cells and the salivary glands are probably crucial factors in the determination of vector competence. MenosThe competence of a Frankliniella occidentalis and a Thrips tabaci population to transmit Tomato spotted wilt virus (TSWV) was analysed. Adults of the F. occidentalis population transmitted this virus efficiently, whereas those of the thelytokous T. tabaci population failed to transmit. TSWV replicated in the midgut of the larvae of both populations after ingestion of virus; however, lower amounts accumulated in T. tabaci larvae than in F. occidentalis larvae. The virus was almost undetectable in T. tabaci adults, whereas high titres were readily detected in the F. occidentalis adults. The first infections in F. occidentalis larvae were detected by immunocytochemical studies in midgut epithelial and subsequently in midgut muscle cells, the ligaments, and finally in the salivary glands. The infections were weaker in the midgut epithelial and muscle cells of T. tabaci larvae, followed by an almost complete absence of any infection in the ligaments, and a complete absence in the salivary glands. Studies by electron microscopy revealed the budding of some virus particles from the basal membrane of midgut epithelial cells of F. occidentalis larvae into the extracellular space of the basal labyrinth. Enveloped virus particles were also seen in midgut muscle cells of F. occidentalis larvae. They were not discerned in epithelial and muscle cells of T. tabaci larvae and adults. This study showed that the rate of virus replication in the midgut and the extent of virus migration from t... Mostrar Tudo |
Palavras-Chave: |
Frankliniella ocidentalis; Insect; Transmissão; Transmission; TSWV. |
Thesagro: |
Inseto; Vetor; Vírus. |
Thesaurus NAL: |
Thrips tabaci. |
Categoria do assunto: |
S Ciências Biológicas |
Marc: |
LEADER 02478naa a2200301 a 4500 001 1771233 005 2024-01-31 008 2002 bl uuuu u00u1 u #d 022 $a1465-2099 024 7 $a10.1099/0022-1317-83-3-663$2DOI 100 1 $aNAGATA, T. 245 $aFactors determining vector competence and specificity for transmission of tomato spotted wilt virus.$h[electronic resource] 260 $c2002 520 $aThe competence of a Frankliniella occidentalis and a Thrips tabaci population to transmit Tomato spotted wilt virus (TSWV) was analysed. Adults of the F. occidentalis population transmitted this virus efficiently, whereas those of the thelytokous T. tabaci population failed to transmit. TSWV replicated in the midgut of the larvae of both populations after ingestion of virus; however, lower amounts accumulated in T. tabaci larvae than in F. occidentalis larvae. The virus was almost undetectable in T. tabaci adults, whereas high titres were readily detected in the F. occidentalis adults. The first infections in F. occidentalis larvae were detected by immunocytochemical studies in midgut epithelial and subsequently in midgut muscle cells, the ligaments, and finally in the salivary glands. The infections were weaker in the midgut epithelial and muscle cells of T. tabaci larvae, followed by an almost complete absence of any infection in the ligaments, and a complete absence in the salivary glands. Studies by electron microscopy revealed the budding of some virus particles from the basal membrane of midgut epithelial cells of F. occidentalis larvae into the extracellular space of the basal labyrinth. Enveloped virus particles were also seen in midgut muscle cells of F. occidentalis larvae. They were not discerned in epithelial and muscle cells of T. tabaci larvae and adults. This study showed that the rate of virus replication in the midgut and the extent of virus migration from the midgut to the visceral muscle cells and the salivary glands are probably crucial factors in the determination of vector competence. 650 $aThrips tabaci 650 $aInseto 650 $aVetor 650 $aVírus 653 $aFrankliniella ocidentalis 653 $aInsect 653 $aTransmissão 653 $aTransmission 653 $aTSWV 700 1 $aINOUE-NAGATA, A. K. 700 1 $aLENT, J. van 700 1 $aGOLDBACH, R. 700 1 $aPETERS, D. 773 $tJournal of General Virology$gv. 83, n. 3, p. 663-671, mar. 2002.
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