Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 31 for “"potyvirus"”.
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Tamarillo mosaic potyvirus: characterization and resistance
… fruit is severely decreased by tamarillo mosaic potyvirus (TaMV) which detrimentally affects fruit colour resulting in the fruit being unacceptable on the international marketplace. Virus incidence was surveyed in four tamarillo growing regions. Viruses were detected by indicator plant …
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Dynamics of the sweetpotato potyvirus aphid pathosystem in Louisiana
Sweetpotato potyviruses [Sweet potato feathery mottle virus (SPFMV), Sweet potato virus G (SPVG) and Sweet potato virus 2 (SPV2)] commonly infect sweetpotato and weedy morning glories in the USA. These viruses are transmitted in a non-persistent manner by various aphid species and cause up to 15% …
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Mutational analysis of the tobacco etch potyvirus cylindrical inclusion protein
The CI protein of tobacco etch potyvirus is known to be an NTPase as well as a putative RNA helicase. In a previous study, the CI gene and three mutants were constructed and expressed in the E. coli expression vector pET 11a. In this study the TEV CI gene was cloned into E. coli expression vector …
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Characterisation and detection of viruses (Cucumovirus, Potyvirus) infecting vanilla in Réunion Island and Polynesian Islands
… information for Vanilla mosaic virus (VanMV, Potyvirus). A Cook Islands isolate (VanMV-CI) and a French Polynesia isolate (VanMV-FP) had distinctly different coat proteins. The VanMV-FP CP N-terminus contained a stretch of amino-acid repeats (GTN) typical of natively unfolded proteins. This …
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Epidemiology, Aphid Vectors, Impact and Management of Tobacco Etch Potyvirus in Hot Peppers in Jamaica
… Jamaica is constrained by the aphid-transmitted potyviruses, tobacco etch virus (TEV) and potato virus Y (PVY). The virus epidemiology was not understood and no effective virus management system existed for these viruses. This study sought to identify possible management strategies for …
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Viruses implicated in the woodiness disease of South African passionfruit, and the molecular characterization of a new potyvirus
… In transmission studies, the CMV-isolate and the potyvirus were found to be sap, aphid and graft transmissible. Separation of the two viruses was achieved by passage through a selective host range.
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Molecular characterization and nucleotide sequence of the coat protein gene of the NL-3 strain of bean common mosaic virus
… common mosaic virus (BCMV) is a member of the potyvirus group, causing severe damage to leguminous crops. The NL-3 strain of the virus was purified and viral RNA extracted. Complementary DNA was synthesized from the viral RNA using Moloney-murine leukemia reverse transcriptase and Xho I …
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Análisis de las interacciones de la proteína CI del virus de la sharka con proteínas de la planta
Los potyvirus son virus de RNA de polaridad positiva cuyo genoma codifica una poliproteína que se procesa autocatalíticamente para dar lugar a al menos nueve proteínas maduras. Una característica de las infecciones por potyvirus es la acumulación de inclusiones citoplásmicas en forma de ruedas de …
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YIELD EFFECT AND VECTOR CAPACITY OF PEA APHID IN TRANSMITTING PEA SEEDBORNE MOSAIC VIRUS ON CHICKPEA AND FABA BEAN
… seed-borne mosaic virus (PSbMV) is an important potyvirus affecting pulse crops, yet its impact on chickpea and faba bean in Western Canada remains poorly characterized. This study examined PSbMV symptom expression, yield effects, and aphid-mediated transmission in chickpea (CDC Orkney) and faba …
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Identification of two potyviruses of phaseolus vulgaris in South Africa
… (EM) indicated that these viruses could be potyviruses, as they were flexuous particles of approximately 700 to 800 nm. Observation of pinwheels in ultrathin sections of Nicotiana benthamiana infected with isolate 93/1 and Phaseolus vulgaris infected with isolate 93/65, confirmed that the …
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The nucleotide sequence of the 3' terminus of soybean mosaic virus
… this cistron contains regions identical to other potyvirus coat proteins.
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Point mutational examination of eukaryotic initiation factor 4E (eIF4E), inclusion bodies analysis, and Barley Yellow Dwarf Virus (BYDV) exonuclease resistant RNA structure mapping and prediction
… infection, particularly in members of the genus Potyvirus. Resistance is thought to be conferred by disrupting the binding of the 5’ viral-encoded protein (VPg), covalently attached to the 5’ end of the Potyvirus genomic RNA, to eIF4E. RNAs of members of the genus Panicovirus, some Carmoviruses …
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Fine Mapping and Candidate Gene Discovery at the Rsv3 Locus
… is the most common member of the viral genus Potyvirus to infect soybeans (Glycine max [L.] Merr.) worldwide. SMV has been traditionally controlled by the deployment of single dominant, strain specific resistance genes, referred to as Rsv genes. Rsv1 is the most widely used form of SMV …
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A Conserved epitope on the surface of carlaviruses
… similar to carlaviruses but belonging to the potyvirus and potexvirus groups were also challenged with the PVM antibody, but failed to react, despite evidence of conserved amino acid sequences in the coat proteins of carlaviruses and potexvirus. A variety of host species infected with viruses …
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Cloning and characterization of the 3' terminal regions of RNA from select strains of maize dwarf mosaic virus and sugarcane mosaic virus
… to one another and to previously published potyvirus nuclear inclusion II and coat protein amino acid sequences. Amino acid homologies of the derived amino acid sequences show the N-termini of the coat proteins of these viruses exhibit considerable variability and support immunological data …
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The Consequences of Plant Anatomy on Viral Co-Infection
… dynamics of tobacco etch virus (TEV, genus Potyvirus) within the plant host Nicotiana benthamiana using both whole plant and microscopic fluorescence imaging. To achieve this, I inserted three distinct bright and fast folding fluorescent markers into the TEV genome. I then initiated viral …
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Involvement of Translationally controlled tumor protein in Tomato yellow spot virus infection
… necessary for the establishment of an efficient potyvirus infection. TCTP is a multifunctional protein found in almost all eukaryotes and is involved in cell growth; ions homeostasis; DNA damage repair and anti-apoptotic activity. Despite numerous studies with TCTP, the involvement of this …
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Interactions of soybean Rsv genes and Soybean mosaic virus
Soybean mosaic virus (SMV; Genus Potyvirus; Family Potyviridae) is one of the most widespread viruses in soybean (Glycine max [L.] Merr.). Hutcheson, a cultivar developed in Virginia, is resistant to the common strains of SMV. However, new resistance-breaking (RB) isolates of SMV have emerged in …
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Engineering resistance to maize lethal necrosis
… that local and Chinese strains of the potyvirus Sugarcane mosaic virus (SCMV) typically coinfect with MCMV. A first global MCMV phylogeny was constructed using these samples combined with new Sanger sequencing of samples in Ecuador and Hawaii. The phylogeny supported previous hypotheses …
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Assessing the Distribution and Impact of <I>Bean pod mottle virus</I> (BPMV) as a Re-emerging Virus, and <I>Soybean mosaic virus </I>(SMV) in Soybean Grown in Virginia
… alone or with Soybean mosaic virus (SMV, Genus Potyvirus, Family Potyviridae) strain SMV G1, and isolates S98-51 and S98-52, on selected soybean cultivars. Individual isolates of BPMV showed variable symptom severity, and resulted in yield loss of between 40.4 to 58.1%, while SMV caused 23.7% in …
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