Bromoviridae
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Identificação sorológica de espécies de vírus que infetam cucurbitáceas em áreas produtoras do Maranhão
Os vírus representam sérios obstáculos para o sucesso da olericultura no mundo inteiro, constituindo a identificação daqueles de maior incidência numa região, papel fundamental para o estabelecimento de estratégias de controle. Visitas de campo foram realizadas a plantios de espécies de cucurbitáceas em áreas produtoras do Maranhão e amostras fol
Fitopatologia Brasileira. Publicado em: 2001-03
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2. Similarities and Differences between the Subgenomic and Minus-Strand Promoters of an RNA Plant Virus
Promoter regions required for minus-strand and subgenomic RNA synthesis have been mapped for several plus-strand RNA viruses. In general, the two types of promoters do not share structural features even though they are recognized by the same viral polymerase. The minus-strand promoter of Alfalfa mosaic virus (AMV), a plant virus of the family Bromoviridae, c
American Society for Microbiology.
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3. Ilarviruses Encode a Cucumovirus-Like 2b Gene That Is Absent in Other Genera within the Bromoviridae
We found that RNA 2 of the four ilarviruses sequenced to date encodes an additional conserved open reading frame (ORF), 2b, that overlaps the 3′ end of the previously known ORF, 2a. A novel RNA species of 851 nucleotides was found to accumulate to high levels in plants infected with spinach latent virus (SpLV). Further analysis showed that RNA 4A is a subg
American Society for Microbiology.
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4. Role of an Essential Triloop Hairpin and Flanking Structures in the 3′ Untranslated Region of Alfalfa Mosaic Virus RNA in In Vitro Transcription
The minus-strand promoter of Alfalfa mosaic virus (AMV), a tripartite plant virus belonging to the family Bromoviridae, is located within the 3′-terminal 145 nucleotides (nt), which can adopt a tRNA-like structure (TLS). This contrasts with the subgenomic promoter for RNA4 synthesis, which requires ∼40 nt and forms a single triloop hairpin. Detailed anal
American Society for Microbiology.
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5. Alfalfa Mosaic Virus Replicase Proteins P1 and P2 Interact and Colocalize at the Vacuolar Membrane
Replication of Alfalfa mosaic virus (AMV) RNAs depends on the virus-encoded proteins P1 and P2. P1 contains methyltransferase- and helicase-like domains, and P2 contains a polymerase-like domain. Coimmunoprecipitation experiments revealed an interaction between in vitro translated-P1 and P2 and showed that these proteins are present together in fractions wit
American Society for Microbiology.
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6. An Antibody to the Putative Aphid Recognition Site on Cucumber Mosaic Virus Recognizes Pentons but Not Hexons
Cucumber mosaic virus (CMV), the type member of the genus Cucumovirus (family Bromoviridae), is transmitted by aphids in a nonpersistent manner. Mutagenesis experiments identified the βH-βI loop of the capsid subunit as a potential key motif responsible for interactions with the insect vector. To further examine the functional characteristics of this motif
American Society for Microbiology.
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7. The Structure of Cucumber Mosaic Virus and Comparison to Cowpea Chlorotic Mottle Virus
The structure of cucumber mosaic virus (CMV; strain Fny) has been determined to a 3.2-Å resolution using X-ray crystallography. Despite the fact that CMV has only 19% capsid protein sequence identity (34% similarity) to cowpea chlorotic mottle virus (CCMV), the core structures of these two members of the Bromoviridae family are highly homologous. As sugges
American Society for Microbiology.