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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 22 for “"Plant virus"”.
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The response of eIF2α kinases to plant virus infection
… frame (uORF) are preferentially translated. In plants, two types of eIF2α kinases have been reported - general control non-derepressible-2 kinase (GCN2) and protein kinase RNA-activated (PKR). The aim of this research was to further elucidate the role of eIF2α phosphorylation in plants, with a …
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New Methods and Applications for Studying Injections of a Plant Virus Into Its Insect Vector
Made available in DSpace on 2014-12-09T18:06:25Z (GMT). No. of bitstreams: 1 6607792.pdf: 2551796 bytes, checksum: 2d5d8131be11005e5533a920cf1ac55d (MD5) Previous issue date: 1966
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Investigations of an Isolate of Bean Pod Mottle Virus From Soybean and Studies of Plant Virus Transmission by Phytophagous Beetles
Made available in DSpace on 2014-12-14T04:37:43Z (GMT). No. of bitstreams: 1 7821011.pdf: 6681195 bytes, checksum: 9f587e9c49a7fe51f0c3f9abe87f6606 (MD5) Previous issue date: 1978
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TRACKING PLANT VIRUS INFECTIONS THROUGH MULTIPLE DIMENSIONS: A SEARCH FOR SOURCES OF NONPERSISTENT VIRUS VECTORS AND RESERVOIRS AT LOCAL AND REGIONAL SCALES
… explores the ecology of aphid-vectored viruses in Midwestern cucurbits; in particular, it focuses on identifying source populations of vectors and virus reservoirs within fields and interactions of vector aphids with land cover surrounding and within fields. Initially, I identified the …
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Plant virus detection and diversity in a mixed tree fruit orchard determined through metagenomic-based analysis of honeybee (Apis mellifera) collected samples
… fruit orchards where profitability of individual plants can take years to achieve. Over time, fruit trees can accumulate various viruses, leading to complex mixed infections. Furthermore, emerging viruses can create epidemics causing significant losses. Effective monitoring approaches can reduce …
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Plant Virus Diagnostics: Comparison of classical and membrane-based techniques for immunoassay and coat protein sequence characterization for Cucumber mosaic virus and three potyviruses
… of pest management strategies. The virus diagnostic capabilities of several plant pathology collaborators within the Integrated Pest Management Collaborative Research Support Program (IPM CRSP) host countries were evaluated with the aid of a survey. Very few plant disease diagnostic …
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Control of the aphid vectors of plant virus diseases by the use of systemic intersections: Thesis submitted for the National Diploma in Horticulture N.D.H. (N.Z.)
… difference between the pathogen we now call a virus and micro-organisms He showed that the cause of tobacco mosaic virus disease could pass through a bacteria proof filter. His work was repeated by Beijerinck in 1898 who introduced his theory of a"contagium vivum fluidum'! Both he, and Baur in …
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Eukaryotic Initiation Factor 3 Interactions with Structural Elements of Barley Yellow Dwarf Virus Untranslated Regions Reveal Details of a New Cap-Independent Translation Initiation Model
<p>Barley Yellow Dwarf Virus (BYDV) is a positive strand RNA plant virus that translates without using a 5′ 7-methylguanosine cap or a 3′ poly-adenosine tail, features that are required for canonical mRNA translation. BYDV’s non-canonical translation relies on RNA structures in the 5′ and 3′ …
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The Biological Age in British Agricultural Virology, 1920s-1960s
The thesis explores the history of virus research in an agricultural scientific context in Britain. It focuses on the Plant Virus Research Station (PVRS), established in Cambridge in the mid-1920s. It tracks the development of this institution, exemplary of state-sponsored agricultural scientific …
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Dielectrophoresis of sub-micrometre particles
… interest was the application of DEP to viruses, the largest of which is approximately 250 nm in diameter. A system for virus characterisation, identification and separation based on DEP would be a major milestone in this field of research, as well as having beneficial medical and …
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Grapevine Fanleaf Virus: Biology, Biotechnology And Resistance
Grapevine fanleaf virus (GFLV) causes fanleaf degeneration of grapevines. GFLV is present in most grape growing regions and has a bipartite RNA genome. The three goals of this research were to (1) advance our understanding of GFLV biology through studies on its satellite RNA, (2) engineer GFLV into …
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Ecological and evolutionary aspects of interactions between microbes coinfecting plants
… pathogen fitness. In the research reported here, plant virus systems were used to explore the effects of coinfection on pathogen populations and host responses. Chapter 1 addresses the importance of coinfection timing using Barley yellow dwarf virus (BYDV-PAV) and Barley stripe mosaic virus. …
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Molecular genetic analysis of host resistance to soybean mosaic virus
Soybean mosaic virus (SMV), a potyvirus detected worldwide, can cause serious diseases in soybean (Glycine max L. Merr.). Host resistance to SMV conferred by a single dominant gene, Rsvl, was studied as a model to gain insights of plant virus resistance genes, and to facilitate the breeding of …
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Animal and Plant Viruses with Double-Stranded Ribonucleic Acid
<p>Reoviruses occur widely in the respiratory and enteric tracts of man and animals, but their relation to disease is not clear. The present study concerns the physical-chemical characteristics and interaction with cells of reovirus type 3. A main objective of the study is to relate some of the …
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Molecular characterization of novel soybean-associated viruses identified by high-throughput sequencing
… the presence of two novel soybean-associated viruses. The first virus has a single-stranded positive-sense RNA genome consisting of 8,693 nt that contains two large open reading frames (ORFs). The predicted amino acid sequence of the first ORF showed similarity to structural proteins, of …
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Genomic and genetic resource for soybean disease resistance improvement
… application of Chromium linked-reads in diploid plant genome de novo assembly. With the growing knowledge of the vital regulatory role of miRNAs in gene expression over the past two decades, there has been great interest to identify both conserved and novel miRNAs in response to environmental …
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Application of HCRSV protein cage for anticancer drug delivery
… cage (PC) of the Hibiscus chlorotic ringspot virus (HCRSV) was explored as a platform for anticancer drug delivery. PC was prepared by removing viral RNA from coat proteins by dialysis against a Ca2+-deficient buffer of pH 8.0, and reassembling the coat proteins by dialysis with a …
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EVOLUTIONARY AND MECHANISTIC INTERACTIONS IN VIRUS TRANSMISSION BY APHIDS
Virus transmission by aphids involves a combination of biological players that have co-evolved over years of interaction: plant hosts, aphid vectors, plant viruses and the aphid’s bacterial endosymbiont. In this interaction, plant hosts activate their immune defenses against plant viruses and …
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Synthesis and Microscopic Characterizations of Virus Nanoparticle-Based Composite Materials
<p>Plant viruses and virus-like protein cages (VLPs) have shown significant promise for a wide range of biomedical applications. In contrast to the artificial nanomaterials, VLPs exhibit unique properties including their well-organized three dimensional (3D) structures, monodispersity, …
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