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 15 of 15 for “"plant disease resistance"”.
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Role of Subcellular Differentiation in Plant Disease Resistance
… in the isoprenoid pathway. In solanaceous plants, one class of endproducts of the pathway are sesquiterpenoid phytoalexins, antibiotic compounds produced by plants in response to pathogens. We are interested in the role of the defense-inducible isoforms of HMGR in phytoalexin production and …
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An investigation into the role of deubiquitinating enzymes in plant disease resistance
… increasingly apparent during the last decade. In plants, regulated degradation by the ubiquitin/26S proteasome has been implicated in diverse signalling events including embryogenesis, hormone signalling and disease resistance. Ubiquitin moieties are ligated to target proteins through the …
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Studies on the Gecko P521 Cone-Type Pigment
… were used to identify components of the plant disease resistance pathway. The availability of the dnd mutants may facilitate further study of the control of HR cell death, gene-for-gene resistance, and broad spectrum disease resistance in plants.
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Dissection of General and Specific Disease Resistance Pathways in Arabidopsis Thaliana
… object of this study was to genetically dissect plant disease resistance using Arabidopsis thaliana and the bacterial pathogen Pseudomonas syringae. Genetic and molecular approaches were used to identify components involved in this pathway. A screen was conducted to look for Arabidopsis mutants …
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Studies of verticillium wilt and characterization of candidate verticillium wilt resistance genes in the mint species Mentha longifolia (L) Huds
… the genetic basis of verticillium wilt resistance in mint (Mentha L., Lamiaceae), wild-collected germplasm obtained from the United States Department of Agriculture was employed to develop breeding populations for wilt resistance screening and molecular genetic study, including cloning …
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"Physiological and Molecular Analysis of Dnd ""Defense, No Death"" Mutants of Arabidopsis"
"Plant diseases cause billions of dollars in damage to crops annually, making dissection of the molecular mechanisms of plant disease resistance an economically important task. Gene-for-gene resistance mediated by plant R genes and pathogen avr genes has long been associated with the hypersensitive …
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High-Resolution Mapping of the Region around the Soybean Virus Resistance Genes, Rsv1 and Rpv1
… alleles at the Rsv1 and Rpv1 locus that confer resistance to SMV and PMV, respectively. A high-resolution map-based cloning approach was undertaken to isolate Rsv1 and Rpv1 from soybean, with hopes of providing insight into this host-pathogen relationship. A mapping population of 1,056 F2 …
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A Comprehensive Analysis of Rust Disease Resistance in the Bioenergy Plant Switchgrass (Panicum virgatum L.)
… fully utilized as a bioenergy crop, large-scale plantings of elite switchgrass germplasm, possibly in monoculture, are likely to occur. This practice may increase the selection pressure on plant pathogens, such as switchgrass rust, which could result in devastating disease epidemics. The …
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Investigating R gene evolution by meiotic recombination using synthetic gene clusters in Arabidopsis
Plant gene families organized as linked clusters are capable of evolving by a process of unequal crossing-over. This results in the formation of chimeric genes that may impart a novel function. However, the frequency and functional consequences of these unequal cross-over events are poorly …
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Characterization of the soybean genome in regions surrounding two loci for resistance to soybean mosaic virus
… been the cause of numerous and often devastating disease epidemics, causing reduction in both the quality and quantity of soybeans worldwide. Two important genes for resistance to SMV are Rsv1 and Rsv4. Alleles at the Rsv1 locus have been shown to control resistance to all but the most virulent …
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An investigation into the role of ubiquitination in plant immunity
Plants have developed elaborate defence mechanisms to protect themselves against pathogens. Recently, the ubiquitin-proteasome pathway has been proven to play important roles in regulating plant disease resistance. Previously, the tobacco (Nicotiana tabacum) ACRE276 and its Arabidopsis homolog …
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Role of virus genes in seed and aphid transmission and development of a virus-induced gene silencing system to study seed development in soybean
… tools comprised of virus vectors with a partial plant transcript insertion that can silence expression of the plant gene. TSV has a tripartite genome, and causes early symptoms such as leaf puckering and necrosis that are often followed by symptom recovery possibly induced by virus RNA silencing. …
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MOLECULAR APPROACHES TO ANALYZE HORIZONTAL RESISTANCE AMONG PLANT SPECIES (MAIZE, SOYBEAN, AND ARABIDOPSIS) TO SYNTENIC FUSARIAL PATHOGENS (F. GRAMINEARUM AND F. VIRGULIFORME)
Numerous evidences showed that the resistance to syntenic fungal species Fusarium graminearum and Fusarium virguliforme infection in plants was partial, quantitative, and strongly influenced by environmental conditions. However, the molecular mechanisms underlying the resistance are still not fully …
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Genetic characterization of a dominant susceptible Rpp1 allele and analysis of quantitative resistance to Asian soybean rust
… Phakopsora pachyrhizi, is a yield-threatening disease in soybean growing countries (Hartman et al. 2012; Godoy et al. 2016). The yield loss can reach as high as 80% if the conditions are conducive, and no control measures are taken (Yorinori et al. 2005; Walker et al. 2011; Hartman, Miles, and …
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A Genome Wide Association Study for Fusarium Head Blight Resistance in Southern Soft Red Winter Wheat
<p>Fusarium head blight (FHB) is a disease of small grains caused by the fungal pathogen Fusarium graminearum. FHB poses potential economic losses and health risks due to the accumulation of the mycotoxin deoxynivalenol (DON) on infected seed heads. The objectives of this study are: 1) evaluate …