Vectors Of Plant Viruses
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Resposta de genótipos de citros à leprose e variabilidade genética da ORF p29 do vírus da leprose dos citros C (CiLV-C) / Response of citrus genotypes to leprosis and genetic variability of ORF p29 from Citrus leprosis virus C (CiLV-C)
Viruses have, potentially, broad genetic variability because of their need to adapt to several changes that they are exposed to. Therefore, genetic variability is essential for their survival; it is the first step to adapt to a new host, to break resistance down, to change symptoms and virulence, which justifies the interest in studies in this area. These st
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/05/2012
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2. Tentativas de purificação e produção de antissoro contra o vírus da morte súbita dos citros e isolamento do CSDaV em plantas herbáceas / Attempts to purify and produce antiserum against the citrus sudden death associated virus and CSDaV isolation in herbaceous plants
Citrus sudden death (CSD) disease was identified in 2001, at Comendador Comes County, State of Minas Gerais, Brazil. Since then the disease has caused the death of 4 million trees in Southwestern Minas Gerais State and Northern São Paulo State. This new and destructive disease affects sweet orange as well as other species, varieties, and hybrids when grafte
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/08/2011
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3. Resistência de cultivares de batata a Myzus persicae (Sulz.)(Hemiptera: Aphididae)
Aphids are the most important vectors of viruses infecting potato (Solanum tuberosum). We focused on the response of the aphid vector Myzus persicae (Sulzer) to five commercial potatocultivars: Ágata, Jaette Bintje, Mondial, Monalisa and Santè, by traditional antibiosis and antixenosis tests and by the EPG (Electrical Penetration Graph) technique, as a ste
Neotropical Entomology. Publicado em: 2010-12
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4. Molecular and biological characterization of a begomovirus isolated from tomato, Lycopersicon esculentum Mill. in the state of Goiás and its interaction with the vector Bemisia argentifolii Bellows &Perring / Caracterização molecular e biológica de um begomovírus isolado de tomateiro, Lycopersicon esculentum Mill., no estado de Goiás e sua interação com o vetor Bemisia argentifolii Bellows &Perring
The whitefly-transmitted viruses from the family Geminiviridae, genus Begomovirus, have been reported as an economically important pathogen group that affect important crops in tropical and subtropical countries. Since the beginning of the 1980 decade, the occurrence of the whitefly associated to Begomovirus infection has drastically increased worldwide. In
Publicado em: 2001
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5. Mechanisms of Arthropod Transmission of Plant and Animal Viruses
A majority of the plant-infecting viruses and many of the animal-infecting viruses are dependent upon arthropod vectors for transmission between hosts and/or as alternative hosts. The viruses have evolved specific associations with their vectors, and we are beginning to understand the underlying mechanisms that regulate the virus transmission process. A majo
American Society for Microbiology.
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6. Genetic elements of plant viruses as tools for genetic engineering.
Viruses have developed successful strategies for propagation at the expense of their host cells. Efficient gene expression, genome multiplication, and invasion of the host are enabled by virus-encoded genetic elements, many of which are well characterized. Sequences derived from plant DNA and RNA viruses can be used to control expression of other genes in vi
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7. The alphaviruses: gene expression, replication, and evolution.
The alphaviruses are a genus of 26 enveloped viruses that cause disease in humans and domestic animals. Mosquitoes or other hematophagous arthropods serve as vectors for these viruses. The complete sequences of the +/- 11.7-kb plus-strand RNA genomes of eight alphaviruses have been determined, and partial sequences are known for several others; this has made
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8. The Plant Virus Tomato Spotted Wilt Tospovirus Activates the Immune System of Its Main Insect Vector, Frankliniella occidentalis
Tospoviruses have the ability to infect plants and their insect vectors. Tomato spotted wilt virus (TSWV), the type species in the Tospovirus genus, infects its most important insect vector, Frankliniella occidentalis, the western flower thrips (WFT). However, no detrimental effects on the life cycle or cytopathological changes have been reported in the WFT
American Society for Microbiology.
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9. Relationships among the positive strand and double-strand RNA viruses as viewed through their RNA-dependent RNA polymerases.
The sequences of 50 RNA-dependent RNA polymerases (RDRPs) from 43 positive strand and 7 double strand RNA (dsRNA) viruses have been compared. The alignment permitted calculation of distances among the 50 viruses and a resultant dendrogram based on every amino acid, rather than just those amino acids in the conserved motifs. Remarkably, a large subgroup of th
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10. Evidence that Binding of Cucumber Necrosis Virus to Vector Zoospores Involves Recognition of Oligosaccharides†
Despite the importance of vectors in natural dissemination of plant viruses, relatively little is known about the molecular features of viruses and vectors that permit their interaction in nature. Cucumber necrosis virus (CNV) is a small spherical virus whose transmission in nature is facilitated by zoospores of the fungus Olpidium bornovanus. Previous studi
American Society for Microbiology.
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11. Systemic spread of an RNA insect virus in plants expressing plant viral movement protein genes
Flock house virus (FHV), a single-stranded RNA insect virus, has previously been reported to cross the kingdom barrier and replicate in barley protoplasts and in inoculated leaves of several plant species [Selling, B. H., Allison, R. F. & Kaesberg, P. (1990) Proc. Natl. Acad. Sci. USA 87, 434–438]. There was no systemic movement of FHV in plants. We t
The National Academy of Sciences.
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12. “Agroinfection,” an alternative route for viral infection of plants by using the Ti plasmid
Most plant viruses are transmitted by insect vectors. We present an alternative method for the introduction of infectious viral DNA that uses the ability of Agrobacterium to transfer DNA from bacterial cells to plants. Cauliflower mosaic virus was chosen to develop this method because it is the best characterized plant DNA virus and can be introduced into pl