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 46 for “"fungal disease"”.
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Host-pathogen interactions and conservation implications of snake fungal disease over broad geographical scales
Emerging infectious diseases represent a threat to biodiversity, posing significant challenges to wildlife conservation globally. Infectious diseases can cause population declines, local extirpations and, in rare cases, complete species extinction. Among emerging pathogens, pathogenic fungi have …
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Identifying patterns and processes of sex-biases for an emerging fungal disease of wildlife
… facilitated an increase in emerging infectious diseases, threatening biodiversity globally. Identifying the individuals, species, or communities most vulnerable to disease can guide the development of conservation priorities. Processes that structure individual variation, such as demography, can …
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Immunological evaluation of HIV-negative invasive fungal disease at Groote Schuur Hospital, Cape Town, South Africa
Background The majority of invasive fungal disease in South African hospitals is HIV-related or associated with another secondary immunodeficiency e.g. haematopoietic stem cell transplant. After excluding secondary immunodeficiency, a detailed immune work-up can lead to a diagnosis of primary …
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Estimating host species and spatial variation in infection with the fungal pathogen that causes snake fungal disease
Emerging wildlife diseases represent a serious threat to conservation efforts. Impacts of emerging multi-host pathogens can vary greatly among species as well as geographically, and understanding which populations will be at greatest risk is essential for conserving biodiversity. Snake fungal …
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The wheat seed phytomicrobiome as a potential source of resistance to the fungal disease, Fusarium head blight
… head blight (FHB), or scab. FHB is a devastating disease in wheat, and other cereal grains, that causes losses in both quantity, through reduced yield, and quality of grain, through the production of toxins such as Deoxynivalenol. Efforts to combat FHB have focused primarily on breeding cultivars …
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Food safety through fungal disease and mycotoxin mitigation on dairy farms: From field to feed and the rumen
… When FUN aren’t enough to protect WPCS from fungal infestation, AD are commonly fed to cows in order to alleviate the negative effects of toxins on cows. In the first cow trial, lactating Holstein cows [(n = 76); BW (mean ± SD) = 698 ± 72 kg; DIM = 153 ± 83 d] were assigned to 1 of 5 …
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Biological control agents of soybean insect pests in the Tidewater area of Virginia
… Distribution of the fly was very uneven. Fungal disease was found to be an important control agent of many (larval) Lepidoptera. It was the most important control agent of <u>Plachypena scabra</u> (F.). P. <u>scabra</u> was also controlled by predation and parasitism. Nine parasites …
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The Advantages and Inheritance of Brown Stem Rot Resistance in Soybeans and The Implications to Breeding for Resistance (Phialophora Gregata, Disease Resistance)
Brown stem rot (BSR) is a fungal disease of soybean {Glycine max (L.) Merr.} caused by Phialophora gregata Allington and Chamberlain (W. Gams). Field and greenhouse tests were performed to study the effect of BSR resistance on soybean yield, to study the heritability and genetics of BSR resistance, …
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Analysis of a <i>Pinus Radiata</i> Seed Stock Field in the Native Año Nuevo Stand in California
… the potential threat that the pitch canker disease poses to the use of Pinus radiata D. Don in plantations in New Zealand, Australia, and Chile. A field trial of 264 seedstocks was planted adjacent to a native stand of pitch canker infected P. radiata on the central coast of California, and …
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Evaluation of Soil Compaction, Plant Density, and Resistance to Phytophthora Root Rot in Soybeans
… f. sp. glycinea Kuan and Erwin, is a soil-borne fungal disease of soybean Glycine max (L.) Merr. . Studies were conducted to determine the effects of soil compaction on phytophthora incidence, to determine if reduced soybean stand due to phytophthora is the only factor responsible for yield …
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Plantable Maps
… Blight, originally an ecological term for a fungal disease in plants, was used by mid-century urban planners to justify redevelopment policies with racially unjust consequences. These map sculptures explore the intertwined history of urban land use and natural ecology, and the implications of …
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Refining Fruit-Zone Leaf Removal for Red-Fruited Bordeaux Grape Varieties Grown in a Humid Environment
… basal shoot leaf layers after fruit set to limit fungal disease and sunburn incidence, and prevent extreme heating of grapes. The goal of this work was to assess if fruit-zone leaf removal to an uncommonly greater extent, and/or at an earlier phenological stage, would favorably alter yield …
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The external microbiome of bats: Effects of season, site, host species, and body region
<p>White-nose syndrome is a cutaneous fungal disease that has been detrimental to North American bats for over 10 years, but few investigators have examined the natural microbiota living on these mammals. I explored the influence of season, geographic site, host species, and body region on the …
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WAVELENGTH AND VISUAL FEATURE SELECTION FOR NON-DESTRUCTIVE EVALUATION OF FUSARIUM HEAD BLIGHT IN WHEAT USING HYPERSPECTRAL IMAGING
Fusarium head blight (FHB) is a fungal disease affecting the heads of cereal crops and has caused significant economic losses in the Canadian prairie wheat industry. Although wheat breeding efforts to enhance resistance genes are ongoing, efficient and accurate detection of FHB remains critical for …
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Quantitative Trait Loci (Qtl) Analysis Of Sulfur Sensitivity In Vitis Aestivalis-Derived 'Norton'
… and sulfur containing compounds to control the fungal disease powdery mildew (PM). Sulfur dioxide induces large-scale transcriptomic modification in the Eurasian grape species Vitis vinifera with little to no phytotoxicity. However, genetic factors contributing to sulfur sensitivity, …
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Selection for Run1-Ren1 Dihybrid Grapevines Using Microsatellite Markers
Powdery mildew is a major fungal disease of grapevine worldwide, and the control of which relies on large quantities of fungicide, accounting for a considerable cost for grape growers. Genetically controlled resistance is a promising alternative to the recurrent application of chemicals.The …
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Resident and migrant blackbirds in southeastern Virginia: Agricultural depredations and winter roost locations
… crops were reported to have been. Anthracnose, a fungal disease, accounted for about 86 per cent of the damage previously called "bird damage." An estimated 15 per cent of this crop was destroyed by anthracnose, insects, and birds. In the case of all three crops, it was noted that the first and …
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Determining the role of density-dependent effects in disease induced population impacts
Emerging infectious diseases have contributed to the loss of biodiversity and threaten conservation efforts across the globe. Managing infectious diseases can be challenging in wildlife, often due to the complex nature of pathogen transmission in muti-host systems that can lead to varied decline …
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Seasonal activity patterns of bats in the Central Appalachians
… Mountains of the eastern United States: a fungal disease called White-nose Syndrome (WNS) and wind energy development. White-nose Syndrome has caused the death of millions of bats in North America, and multiple hibernating bat species are affected in the central Appalachians. Wind energy is …
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Root restriction, under-trellis cover cropping, and rootstock modify vine size and berry composition of Cabernet Sauvignon
… Dense canopies increase the incidence of fungal disease, require greater allocation of resources to manage, and inhibit fruit development. The primary objective of these studies was to determine effective vine-size modification treatments that would optimize fruit quality, while reducing …
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