Plant Viruses
Mostrando 1-12 de 281 artigos, teses e dissertações.
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1. Determination of the grapevine virome by high-throughput sequencing and grapevine viruses detection in Serra Gaúcha, Brazil
ABSTRACT Among grapevine (Vitis spp.) pathogens, viruses stand out, considering that this fruit plant is broadly susceptible to them and that they cause several diseases, reducing quality and yield of grape production. However, detecting and identifying viral infections in grapevines can be challenging. The objectives of this study were to detect grapevine v
Rev. Ceres. Publicado em: 2020-04
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2. Cardanols detected in non-polar propolis extracts from Scaptotrigona aff. postica (Hymenoptera, Apidae, Meliponini)
Resumo A própolis elaborada pelas abelhas sem ferrão (Apidae, Meliponini) é um material resinoso extraído de brotos, folhas e exsudatos de plantas, que são misturados com secreções salivares, cera e solo. A espécie Scaptotrigona aff. postica (Latreille, 1807), (Hymenoptera, Apidae, Meliponini), popularmente conhecida como “tubi”, no estado do Mar
Braz. J. Food Technol.. Publicado em: 17/10/2019
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3. Genome-wide analysis of EgEVE_1, a transcriptionally active endogenous viral element associated to small RNAs in Eucalyptus genomes
Abstract Endogenous viral elements (EVEs) are the result of heritable horizontal gene transfer from viruses to hosts. In the last years, several EVE integration events were reported in plants by the exponential availability of sequenced genomes. Eucalyptus grandis is a forest tree species with a sequenced genome that is poorly studied in terms of evolution a
Genet. Mol. Biol.. Publicado em: 23/02/2017
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4. Translational control in plant antiviral immunity
Abstract Due to the limited coding capacity of viral genomes, plant viruses depend extensively on the host cell machinery to support the viral life cycle and, thereby, interact with a large number of host proteins during infection. Within this context, as plant viruses do not harbor translation-required components, they have developed several strategies to s
Genet. Mol. Biol.. Publicado em: 13/02/2017
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5. Arabidopsis thaliana as a model host for Brevipalpus mite-transmitted viruses
ABSTRACT: Brevipalpus-transmitted viruses (BTV) are a taxonomically diverse group of plant viruses which severely affect a number of major crops. Members of the group can be sub-classified into cytoplasmic (BTV-C) or nuclear type (BTV-N) according to the accumulation sites of virions in the infected plant cells. Both types of BTV produce only local infection
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-02
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6. Commercial Biological Control Agents Targeted Against Plant-Parasitic Root-knot Nematodes
Root-knot nematodes are microscopic round worms, which cause severe agricultural losses. Their attacks affect the productivity by reducing the amount and the caliber of the fruits. Chemical control is widely used, but biological control appears to be a better solution, mainly using microorganisms to reduce the quantity of pests infecting crops. Biological co
Braz. arch. biol. technol.. Publicado em: 2014-12
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7. Episomal detection of Banana streak OL virus in single and mixed infection with Cucumber mosaic virus in banana 'Nanicão Jangada'
Banana streak virus (BSV) and Cucumber mosaic virus (CMV) are commonly found in all banana growing-areas of the world. These viruses cause diseases that lead to yield reduction and constrain plant breeding and distribution of Musa germplasm. Most of the diagnostic methods targeting BSV can generate dubious results because of the considerable genetic and sero
Trop. plant pathol.. Publicado em: 2014-08
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8. Bioactivity of plant extracts on the larval and pupal stages of Aedes aegypti (Diptera, Culicidea)
Introduction Aedes aegypti is responsible for the transmission of the dengue and yellow fever viruses. This study evaluated the effects of extracts from Cnidosculos phyllacanthus, Ricinus communis, and Coutarea hexandra on the developmental periods of A.aegypti larvae and pupae. Crude extracts of C. phyllacanthus and C. hexandra and oil from R. communis and
Rev. Soc. Bras. Med. Trop.. Publicado em: 2013-07
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9. The efficiency of concentration methods used to detect enteric viruses in anaerobically digested sludge
The presence of enteric viruses in biosolids can be underestimated due to the inefficient methods (mainly molecular methods) used to recover the viruses from these matrices. Therefore, the goal of this study was to evaluate the different methods used to recover adenoviruses (AdV), rotavirus species A (RVA), norovirus genogroup II (NoV GII) and the hepatitis
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-02
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10. 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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11. Metatranscriptomic analysis of small RNAs present in soybean deep sequencing libraries
A large number of small RNAs unrelated to the soybean genome were identified after deep sequencing of soybean small RNA libraries. A metatranscriptomic analysis was carried out to identify the origin of these sequences. Comparative analyses of small interference RNAs (siRNAs) present in samples collected in open areas corresponding to soybean field plantatio
Genetics and Molecular Biology. Publicado em: 2012
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12. Biologia de Semiaphis dauci (Fabricius, 1775) e Aulacorthum solani (Kaltenbach, 1843) (Hemiptera: Aphididae) associados à Arracacia xanthorrhiza (Bancroft, 1825) / Semiaphis dauci (Fabricius, 1775) and Aulacorthum solani (Kaltenbach, 1843) (Hemiptera: Aphididae) associated with Arracacia xanthorrhiza (Bancroft, 1825)
The aphids are limiting for various crops, and in the case of the horticulture crops, it has been a problem for the cultivation of Arracacia xanthorrhiza (Bancroft, 1825), the arracacha. This plant, of Andean origin, has been well adapted to these climatic conditions of Southeast Brazil and conquered many consumers, currently representing an important food s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/09/2011