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 196 for “"Disease Resistance"”.
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Approaches towards disease resistance to filamentous pathogens
… capsidiol and synthetic NLR immune receptors as disease resistance approaches against oomycete and fungal plant pathogens. The production of phytoalexins constitutes an important aspect of plant defence. Capsidiol, a pepper phytoalexin, differentially inhibits the growth of two Phytophthora …
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Genetics, immunoresponsiveness, and disease resistance in chickens
… B²¹. An experiment was conducted to test Marek’s disease resistance of these haplotypes in line LA. Mortality from a natural exposure was high for all three groups, and there was no difference among haplotypes. Correlated responses of growth and reproductive traits in lines HA and LA were due to …
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Genetics, behavior, and disease resistance in chickens
… of behavior, genetics, physiology and disease resistance in the domestic fowl. The principle objective was to obtain insights into the mechanisms involved in the responses of the domestic chicken to various husbandry situations. A second objective was to determine the degree of …
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Mapping PAMP Responses and Disease Resistance in Brassicas
… where it may have potential to provide durable disease resistance in the field. Limiting this work, however, is an absence of reliable bioassays to investigate PAMP responses in some species. Presented here is a series of methods to investigate PTI in Brassica napus. The assays allow measuring …
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Genetics, humoral immunoresponsiveness, and disease resistance in chickens
… of these lines as influenced by age, diet, and a disease agent. A crossing experiment was also conducted to further describe the mode of inheritance of such competence. Humoral immunocompetence was evaluated by primary, memory, and maternal antibody responses to SRBC. Primary antibody response, …
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Role of Subcellular Differentiation in Plant Disease Resistance
… isoforms of HMGR in phytoalexin production and disease resistance. Transgenic tobacco, constitutively expressing the defense-inducible tomato hmgr isogene, hmg2, showed fewer and smaller lesions following tobacco mosaic virus (TMV) inoculation. There is little evidence of phytoalexins acting …
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The Genetic Architecture Of Quantitative Disease Resistance In Maize
… understand the genetic basis for quantitative disease resistance (QDR) in plants. The focus of these studies was the economically important disease of maize (Zea mays L. ssp. mays), northern leaf blight (NLB, caused by Setosphaeria turcica L. anamorph Exserohilum turcicum). The maize nested …
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Genomic changes underlying disease resistance and high protein QTL
Underlying genomic changes to disease resistance QTL cqSCN-006 and cqSCN-007 Soybean Cyst Nematode (SCN) is the most devastating pest of Glycine max (soybean). Currently control of SCN is through planting of non-host crops and the use of disease-resistant soybean germplasm containing resistance …
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Genomic and genetic resource for soybean disease resistance improvement
… to improve soybean biotic and abiotic stress resistance. Soybean mosaic virus (SMV) causes significant reductions in soybean yield and seed quality. In North America, seedborne infections are the primary sources of inoculum for SMV infections. Therefore, host-plant resistance to SMV seed …
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Mining disease resistance genes in cassava using next-generation sequencing
Cassava brown streak disease (CBSD) remains a major threat to cassava productivity hence to food security and livelihood of over half a billion people in sub-Saharan Africa. Exploitation of natural resistance is generally accepted as the most sustainable means to control the disease. Most of the …
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Understanding the mechanisms of cir1 disease resistance in Arabidopsis thaliana
… and very effective defence system to curb disease caused by pathogen infections. To gain insight into the defence signalling network and defence responses deployed by plants for resistance to pathogens, the defence-related Arabidopsis thaliana mutant cir1 (constitutively induced resistance …
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Identification of the cir1 disease resistance gene in Arabidopsis thaliana
… system to perceive and effectively respond to disease causing pathogens. The defence-related cir1 (constitutively induced resistance 1) mutant was first isolated in an effort to identify components of the Arabidopsis thaliana defence system essential for resistance against pathogens. The cir1 …
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Improvement of soybean breeding via high throughput phenotyping and disease resistance
… of Rhg1 Copy Number and Interaction with Rhg4 on Resistance to Heterodera glycines in Soybean Rhg1 and Rhg4 are important loci conferring resistance to soybean cyst nematode (SCN; Heterodera glycines). Alleles at Rhg1 have been shown to vary for copy number and type and the importance of this …
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Dissection of General and Specific Disease Resistance Pathways in Arabidopsis Thaliana
… 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 that …
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Modelling spatial strategies for the durable deployment of crop disease resistance
Maximising the durability of crop disease resistance genes in the face of pathogen evolution is a major challenge in modern agricultural epidemiology. Spatial diversification in the deployment of resistance genes, where susceptible and resistant fields are more closely intermixed, is predicted to …
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Genotype by nutrition interactions for immunoresponsiveness and disease resistance in chickens
… to measure growth, immunoresponsiveness, and disease resistance in several genetic stocks maintained under different nutritional regimens. Genetic stocks included (1) a commercial layer line, (2) commercial broiler lines, (3) a White Rock line selected for high juvenile body weight, (4) a …
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Improving Disease Resistance for Shrimp Through Application of Probiotics in Feed
Diseases affecting shrimp contribute to billions of dollars of economic loss yearly to the aquaculture industry. Recently, one of the primary causative agents of disease has been Vibrio parahaemolyticus; in 2009, a new strain causing Early Mortality Syndrome (EMS) or acute hepatopancreatic necrosis …
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