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Showing 1 to 20 of 99 for “"Host Specificity"”.
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Host specificity of microsporidia: Physiological and ecological considerations
… may not accurately represent ecological (field) host specificity of entomopathogens but, if carefully interpreted, may be used as a tool to predict ecological host specificity. I conducted two laboratory studies designed to predict the ecological host range of microsporidia, common protozoan …
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Host Specificity of Freshwater Mussels: a Critical Factor in Conservation
… life cycle in which they parasitize a fish host during their larval stage. While fish hosts of many mussel species have been identified, little is known of variation in host-specificity among populations, within species. I investigated host compatibility in two populations of the ellipse …
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Mechanism of Host Specificity and Host Range of Nosema Algerae
Made available in DSpace on 2014-12-12T01:27:42Z (GMT). No. of bitstreams: 1 7317659.pdf: 5150663 bytes, checksum: 681920e404ccdc76bc059bfab2ebffd2 (MD5) Previous issue date: 1973
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Analysis of Host Specificity in Salmonella Enterica Serovars Typhi and Typhimurium
… in mice and thus did not expand the Typhi host range. These results suggest that either genetic determinants responsible for mouse virulence are located on fragments A or G of the Typhimurium chromosome or that multiple fragment transfers, and thus multiple genes, are required to alter the …
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Geographic distributions and vertebrate host specificity of genetic lineages of Borrelia burgdorferi
… distribution can inform our understanding of host infection risk. Borrelia burgdorferi is a vector-borne bacterium that causes Lyme disease in humans and is common in the United States. The outer surface protein C (ospC) gene of B. burgdorferi exhibits substantial genetic variation across the …
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Population Genetics and Host Specificity of a Rare Parasitic Plant, Cuscuta harperi
… range; it is also exhibits a high level of host specificity, parasitizing only a few select species. <em>C. harperi</em> is of conservation concern due to small population sizes and threats from habitat degradation.</p> <p>Here we develop genetic markers to address questions regarding …
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Host Specificity, Negative Feedbacks, and Pathogen Defense in the Plant Phyllosphere Microbiome
… two research projects, I have explored whether host specificity influences fungal endophyte community structure in plant leaves across several ecotypes of switchgrass (Panicum virgatum) and across 19 plant species within the Asteraceae family. In these works, I found contrasting results for the …
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Molecular and cellular analyses of pathogenicity and host specificity in rice blast disease
… factor, although its role remains elusive. Host cellular responses after appressorial penetration are equally important in determining if disease will occur. We have characterized the cellular response of one rice variety to a compatible fungal strain (causes disease), an incompatible strain …
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Factors Associated With Immunogenesis, Pathogenesis and Host Specificity of Certain Acute Hemotropic Infections
Made available in DSpace on 2014-12-09T22:30:15Z (GMT). No. of bitstreams: 1 6801871.pdf: 9126500 bytes, checksum: 403df6bd32a14f83955c3e364466927f (MD5) Previous issue date: 1967
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The Structural and Biochemical Characterization of Salmonella Host Specificity Determinant Gifsy-2 Gene E
… enterica serovars, some with a very specific host set, and others that cause disease in rodents, birds, livestock, domestic fowl, and humans alike. In recent years, there has been much progress in the delineation of Salmonella infection, with the goal of understanding Salmonella pathogenesis …
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Are Weevils Picky Eaters? Community Structure and Host Specificity of Neotropical Saproxylic Beetles (Coleoptera: Curculionidae)
… to other decomposers. Understanding beetle host preferences and patterns of community assembly is critical for their conservation, and for predicting which species might become invasive. This project aims to investigate the ecological and host specificity, as well as the community …
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OPTIMIZING THE BIOLOGICAL CONTROL OF INVASIVE INSECTS: EVALUATING NATURAL ENEMY HOST SPECIFICITY, PREY BEHAVIOR, AND VIBRATIONAL COMMUNICATION
… of biological control. The tests on parasitoid host specificity include studies on chemical ecology. In this regard, we investigated and compared the ability of two egg parasitoids, Trissolcus japonicus and Trissolcus mitsukurii, associated with the phytophagous invasive species Halyomorpha …
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Host specificity in the Rhizobium symbioses of two Aspalathus species and an invasive alien legume, Acacia saligna
The symbiotic specificity of Aspalathus capensis and A. carnosa in relation to their geographical distribution, was investigated by growing plants in soil and in tubes containing soil solutions plus nitrogen-free nutrient solutions. Soila were collected from three sites within their distribution …
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The History and Physiological Basis of Host Specificity of The Mexican Bean Beetle, Epilachna Varivestis, Muls. (Coleoptera, Coccinellidae)
Made available in DSpace on 2014-12-05T21:33:57Z (GMT). No. of bitstreams: 1 0023349.pdf: 7065343 bytes, checksum: c9e75d62d88ce06a56b8531fc14a8223 (MD5) Previous issue date: 1957
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Ceuthorrhynchidius horridus panzer (Coleoptera: curculionidae) -- the host specificity of the first instar, notes on the insect's biology, and methods of adult aestival diapause termination
… without a comprehensive investigation of its host specificity and biology. First instar host specificity tests on 36 species of economically and aesthetically important plants revealed an approximate host range among some species based on development to only the third instar. Field host range …
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Monogeneans of the Southern Fiddler Ray, Trygonorrhina Fasciata (Rhinobatidae) in South Australia: an exceptional model to compare parasite life history traits, invasion strategies and host specificity.
… from the skin of T. fasciata, representing a new host and locality record. Larval anatomy and post-larval development are also documented. The presence of six needle-like spicules in the larval haptor is confirmed, supporting an earlier theory that spicules are ancestral vestiges. My studies …
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