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 8 of 8 for “"Natural infections"”.
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Exploration of the malaria parasite lifecycle stages and strains circulating in natural infections at single-cell resolution
… in developing effective interventions. Many infections constitute several strains, and this complicates malaria studies since it is hard to disentangle strains using traditional bulk approaches. There are also parasites of different stages circulating in natural infections, but there is very …
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Quantifying Metagonimoides oregonensis infection distribution and effects among stream salamander hosts
… to determine which species of salamanders are naturally infected. I found that five of the six species examined had natural infections, but that there was variation in infection intensity and prevalence among the species. Of the six species, Desmognathus quadramaculatus may be most important in …
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Epidemiology, Aphid Vectors, Impact and Management of Tobacco Etch Potyvirus in Hot Peppers in Jamaica
… was mainly by secondary spread from primary infections. Secondary infections were spatially correlated to primary infections for up to 25 meters. Natural infections of TEV were associated with aphid flight activity. Over 30 species of aphids were collected on pepper farms in St. Catherine …
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Cryptosporidium Parvum Microbial Adhesion: Interactions Between Sporozoites and Host Cells
… this assay were identical to those described in natural infections. A variety of glycoconjugates, as well as plasma membrane vesicles, were screened for their ability to block C. parvum sporozoite binding to MDBK cells. Of the naturally occurring and synthetic glycoconjugates tested, only mucins …
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Interactions of soybean Rsv genes and Soybean mosaic virus
… (RB) isolates of SMV have emerged in natural infections to break the resistance of Hutcheson containing the Rsv1y allele. These RB isolates are SMV-G5 and G6-like based on the differential reactions on soybean cultivars with the Rsv1 locus, and are more G6-like based on the amino acid …
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Characterizing Cystoisospora canis as a Model of Apicomplexan Tissue Cyst Formation and Reactivation
… were able to superinfect beagles that came with natural infections of Cystoisospora ohioensis-like oocysts indicating that little protection against C. canis infection occurred in these beagles. The C. canis oocysts collected were purified and used for future studies. We demonstrated in vitro …
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Tracking the In Vivo Dynamics of Antigenic Variation in the African Trypanosome
… in vivo during both acute and chronic mouse infections. My experiments revealed unexpected diversity within parasite populations, and the expression of as much as one-third of the functional genomic VSG repertoire after only one month of infection. In addition to suggesting that the …
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Phaeomoniella chlamydospora: potential inoculum sources in the grapevine propagation process
… was 47% of vines infected. The occurrence of natural infections in control vines often masked treatment effects, this was overcome by the use of an isolate-specific genetic marker. Black streaking in vines, a symptom commonly used as a method of disease assessment, was shown to be prone to …