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150. | | INOUE-NAGATA, A.K.; FONSECA, M. E. N.; LOBO, O. T. A.; AVILA, A. C. de; MONTE, D. C. Analysis of the nucleotide sequence os the coat protein and 3: untranslated region of two Brazilian Potato Virus Y isolate Fitopatologia Brasileira, Brasilia, v.26, n.1, p.45-52, mar. 2001. Biblioteca(s): Embrapa Hortaliças. |
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152. | | MELO FILHO, P. de A.; NAGATA, T.; DUSI, A. N.; ÁVILA, A. C. de; BUSO, J. A.; RESENDE, R. O. Isolation and sequence of Garlic virus D (GarV-D) associated to garlic plant in Brazil. Virus Reviews & Research, São Paulo, v. 6, n. 2, p. 159, nov. 2001. Resumo. Suplemento. Biblioteca(s): Embrapa Hortaliças. |
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Registro Completo
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
31/03/1993 |
Data da última atualização: |
05/03/2024 |
Autoria: |
RESENDE, R. de O.; HAAN, P. de; VOSSEN, E. van de; AVILA, A. C. de; GOLDBACH, R.; PETERS, D. |
Afiliação: |
RENATO DE OLIVEIRA RESENDE; PETER DE HAAN; EDWIN VAN DE VOSSEN; ANTONIO CARLOS DE AVILA, CNPH; ROB GOLDBACH; DICK PETERS. |
Título: |
Defective interfering L RNA segments of tomato spotted wilt virus retain both virus genome termini and have extensive internal deletions. |
Ano de publicação: |
1992 |
Fonte/Imprenta: |
Journal of General Virology, v. 73, p. 2509-2516, 1992. |
DOI: |
https://doi.org/10.1099/0022-1317-73-10-2509 |
Idioma: |
Inglês |
Conteúdo: |
Defective interfering (DI) RNA molecules derived from the genomic L RNA segment of tomato spotted wilt virus (TSWV) were generated during sequential passage of the virus at high multiplicity. Characterization of DI RNAs from four distinct isolates by Northern blot analysis and sequence determination revealed that both the 5′ and 3′ genomic termini were retained in these molecules. Each DI RNA contained a single internal deletion of approximately 60% to 80% of the L RNA segment. All DI RNAs studied maintain an open reading frame (ORF) which suggests that these defective molecules should be translatable by ribosomes. Detection of only defective molecules with ORFs indicates either that association with ribosomes or translation is a prerequisite for the selection and maintenance of replicating DI RNAs, or that the truncated proteins produced play a role in their selection or replication. Analysis of the junction sites in the DI RNAs showed that short nucleotide sequences are repeated, one at the release and another at the reinitiation point on the L RNA. One of these is lost during the generation of the DI molecules. The presence of repeated sequences at the junction sites seems to be unique for tospovirus DI L RNAs; they have not been described for other DI systems of either positive- or negative-strand RNA viruses. A model for TSWV DI RNA generation is proposed in which the viral polymerase can ‘jump’ across the internal sequences from one secondary structure to another containing the repeated sequences, during the replication of the viral complementary L RNA segment. MenosDefective interfering (DI) RNA molecules derived from the genomic L RNA segment of tomato spotted wilt virus (TSWV) were generated during sequential passage of the virus at high multiplicity. Characterization of DI RNAs from four distinct isolates by Northern blot analysis and sequence determination revealed that both the 5′ and 3′ genomic termini were retained in these molecules. Each DI RNA contained a single internal deletion of approximately 60% to 80% of the L RNA segment. All DI RNAs studied maintain an open reading frame (ORF) which suggests that these defective molecules should be translatable by ribosomes. Detection of only defective molecules with ORFs indicates either that association with ribosomes or translation is a prerequisite for the selection and maintenance of replicating DI RNAs, or that the truncated proteins produced play a role in their selection or replication. Analysis of the junction sites in the DI RNAs showed that short nucleotide sequences are repeated, one at the release and another at the reinitiation point on the L RNA. One of these is lost during the generation of the DI molecules. The presence of repeated sequences at the junction sites seems to be unique for tospovirus DI L RNAs; they have not been described for other DI systems of either positive- or negative-strand RNA viruses. A model for TSWV DI RNA generation is proposed in which the viral polymerase can ‘jump’ across the internal sequences from one secondary structure to another conta... Mostrar Tudo |
Palavras-Chave: |
Caracterizacao; Characterization; DI L RNA; Generation; Geracao; Maintenance; TSWV; Vira-Cabeca. |
Thesagro: |
Manutenção. |
Thesaurus NAL: |
Tomato spotted wilt virus. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02548naa a2200313 a 4500 001 1749565 005 2024-03-05 008 1992 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1099/0022-1317-73-10-2509$2DOI 100 1 $aRESENDE, R. de O. 245 $aDefective interfering L RNA segments of tomato spotted wilt virus retain both virus genome termini and have extensive internal deletions.$h[electronic resource] 260 $c1992 520 $aDefective interfering (DI) RNA molecules derived from the genomic L RNA segment of tomato spotted wilt virus (TSWV) were generated during sequential passage of the virus at high multiplicity. Characterization of DI RNAs from four distinct isolates by Northern blot analysis and sequence determination revealed that both the 5′ and 3′ genomic termini were retained in these molecules. Each DI RNA contained a single internal deletion of approximately 60% to 80% of the L RNA segment. All DI RNAs studied maintain an open reading frame (ORF) which suggests that these defective molecules should be translatable by ribosomes. Detection of only defective molecules with ORFs indicates either that association with ribosomes or translation is a prerequisite for the selection and maintenance of replicating DI RNAs, or that the truncated proteins produced play a role in their selection or replication. Analysis of the junction sites in the DI RNAs showed that short nucleotide sequences are repeated, one at the release and another at the reinitiation point on the L RNA. One of these is lost during the generation of the DI molecules. The presence of repeated sequences at the junction sites seems to be unique for tospovirus DI L RNAs; they have not been described for other DI systems of either positive- or negative-strand RNA viruses. A model for TSWV DI RNA generation is proposed in which the viral polymerase can ‘jump’ across the internal sequences from one secondary structure to another containing the repeated sequences, during the replication of the viral complementary L RNA segment. 650 $aTomato spotted wilt virus 650 $aManutenção 653 $aCaracterizacao 653 $aCharacterization 653 $aDI L RNA 653 $aGeneration 653 $aGeracao 653 $aMaintenance 653 $aTSWV 653 $aVira-Cabeca 700 1 $aHAAN, P. de 700 1 $aVOSSEN, E. van de 700 1 $aAVILA, A. C. de 700 1 $aGOLDBACH, R. 700 1 $aPETERS, D. 773 $tJournal of General Virology$gv. 73, p. 2509-2516, 1992.
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