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 7 of 7 for “"fungal pathogenicity"”.
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Molecular dissection of Alternaria brassicicola pathogenesis mechanisms
Alternaria brassicicola is a necrotrophic fungal pathogen that causes black spot disease on cruciferous plants including economically important Brassica species and the model plant Arabidopsis thaliana. The purpose of this dissertation was to gain a better understanding of the pathogenesis …
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Pathogenicity and taxonomy of fungi associated with the mountain pine beetle in British Columbia
… two methods that have been used to assess fungal pathogenicity. Results were similar for older trees inoculated with G. clavigera using either the alternating flap technique or cork borer method. Using the cork borer method, younger lodgepole pine trees were inoculated with five different …
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Iron and reactive oxygen in wheat-pathogen interactions
… in an effort to understand the impact of iron on fungal pathogenicity, I investigate iron uptake in the head blight pathogen, Fusarium graminearum. Fungi use at least two separate systems to take up iron, one based on enzymatic iron reduction and the other based on the synthesis and secretion of …
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Evolutionary Implications and Genetic Basis of Peroxide Survival in Saccharomyces Cerevisiae
… to address its importance for yeast biology and fungal pathogenicity.</p><p>Population genetic analyses of DNA sequences from five loci from 103 strains encompassing the known ecological spectrum of <i>S. cerevisiae</i> show that it is a recombining species with three divergent subgroups, which …
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Bio-control of root rot disease in vanilla
… or where little information is available on fungal pathogenicity. Biocontrol is the main alternative for disease control in this crop, an attractive approach because of increasing concerns for environmental protection. The investigation considers two biocontrol strategies: first the …
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Reprogramming the expression of the double-stranded RNA mitovirus OnuMV1c from the mitochondria to the cytoplasm in the fungal pathogen Ophiostoma novo-ulmi
… of this disease is caused by the ascomycete fungal pathogen Ophiostoma novo-ulmi. A number of strategies have been used to attempt to mitigate the effects of DED but none have met any sustainable success, and the disease continues to have severe ecological and economic impacts. Consequently, …
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Functional Analysis of Secondary Metabolite Biosynthesis-Related Genes in Alternaria brassicicola
… produced by A. brassicicola contribute to pathogenicity, we identified seven nonribosomal peptide synthetases (NPSs) and 10 polyketide synthases (PKSs) in the A. brassicicola genome. The phenotype resulting from knockout mutations of each PKS and NPS gene was investigated with an emphasis …