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 83 for “"host specific"”.
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Analysis of Chromosomal Rearrangements in Host Specific Salmonella Serovars
… inversion at rrn operons in either generalist or host-specific serovar of Salmonella enterica. Analysis of inversions at rrn operons suggests that both generalist and host-specific serovars undergo inversions at a rare frequency in standard laboratory conditions. It is possible that the …
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Host-specific interactions between rice, wheat, and multiple Fusarium species
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-08-01
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Host specific gene expression of the baculovirus, Spodoptera frugiperda nuclear polyhedrosis virus, in insect cell lines
… infect insects with high lethality and specificity and are experimental insecticides for suppressing pest populations in the field. Recently, recombinant DNA constructions of baculoviruses have been successfully utilized for the expression of foreign genes. In order to construct safe and …
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Host Plant and Spatial Influences on the Natural Enemy Community Structure of a Host Specific Insect Herbivore
… (Hymenoptera: Cynipidae) on the leaves of its host plants across the gall former's geographic range while controlling for spatial autocorrelation among sample sites. Belonocnema treatae exhibits regional host plant specialization across the southern US on three live oak species, Quercus …
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Effects of Prior Defoliation on the Timing of Life Cycle Events and Susceptibility to Natural Enemies of a Host Specific Gall-Former
… phytophagous insects specialized to exploit specific plant tissues, phenological synchronization between plant and insect life cycle events is crucial and likely under selection. Here I report on past (1995-2001) and recent (2006-2007) patterns of emergence phenology and survivorship of the …
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Host Specific Microbial Source Tracking and Quantification Using the Partial 16SrRNA Gene Sequence of Bacteroides on the Wilson's Creek Tributary in Southwest Missouri
… limited in the ability to be associated with a specific host. The purpose of this study was to look at land use around Wilson's Creek and to identify and quantify sources that interact with land to determine which source contributes the most contamination. A real-time PCR assay using Bacteroides …
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Host Specific Microbial Source Tracking and Quantification Using a Partial 16SrRNA Sequence of Bacteroides on the Finley River, a Tributary of the James River in Southwest Missouri
… was used to evaluate water samples for species specific (cow and human) Bacteroides in the Finley River. The Finley River is susceptible to impacts from both bovine and humans as it flows through farmland and urban areas. Water samples were collected from sites identified in a previous study …
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Assessing Eucryptorrhynchus brandti as a Potential Carrier for Verticillium albo-atrum from Infected Ailanthus altissima
… in 2002 to be caused by an apparently host-specific strain of Verticillium albo-atrum Reinke & Berthold, a soil-borne, vascular wilt fungus. A limited survey conducted in Virginia revealed two sites where TOH stands were infected with V. albo-atrum. A virulence test confirmed that …
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Host-Dependent Expression, Transcriptional Regulation and Protection of Ehrlichia chaffeensis Tandem Repeat Proteins
… in mononuclear phagocytes in mammalian hosts. The major immunoreactive proteins of E. chaffeensis include a group of tandem repeat proteins (TRPs) that are involved in various molecular strategies to reprogram the host cell during infection. The objectives of this dissertation were to …
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A morphological and systematic study of the first and second instars of the Kermesidae in the Nearctic region (Homoptera: Coccoidea)
… the production of galls. Some scale insects are host specific while others are polyphagous. They feed on many different parts of plants including the roots, trunk, stems, leaves, buds and fruit.
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Mechanisms of microbial-host interaction during asymptomatic bacteriuria
… to protect against recurrent UTI. To define the host influence on bacterial adaptation during long term E. coli 83972 ABU, we collected sequential isolates from patients that had been inoculated with E. coli 83972 and established stable bacteriuria. The isolates acquired several host-specific …
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Diazotroph Assemblages of Salt Marsh Plants Growing Along An Environmental Gradient: Assemblage Composition and Responses to Environmental Conditions
… have also been studied and found to be plant host specific and diverse. Coastal salt marshes along the eastern coast of the US typically occur along an elevation gradient that results in a distinctive pattern of plant zonation. This study examined the diazotroph assemblages associated with …
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Epidemiology and population structure of Xylella fastidiosa, the causal agent of bacterial leaf scorch, among urban trees in the District of Columbia
… among the urban trees. These strains were host specific, with only one clone being associated with members of the red oak family, American elm, American sycamore, and two clones being associated with mulberry. Long-term management strategies aimed at mitigating the occurrence of bacterial …
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Bacterial Source Tracking of E. coli in a Constructed Wetland
… present. Three of these sequences were pigeon-specific and two were cattle-specific. The presence of host-specific sequences indicates that sequence-based source tracking methods show promise for identifying fecal contamination.</p>
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Cause and Impacts of the Early Season Collapse of Lilium grayi (Gray’s lily), on Roan Mountain, TN/NC
… High concentrations of the <em>Lilium</em> spp. host-specific fungal phytopathogen, <em>Pseudocercosporella inconspicua</em> (G. Winter) U. Braun were associated with 19/20 symptomatic and 0/30 asymptomatic plants. Strength of the association between pathogen and disease and the replication of …
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Biosystematics and Diversification in the Genus <i>Striga Lour.</i> (Scrophulariaceae) in Africa
… of the groups (species, geographical separation, host) on 13 vegetative and floral features. The affinities within the different species groups and in polymorphic species were determined based on a large number of randomly (using a random table) chosen plants that represent the range and the …
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The sensory mediation of symbiosis between hyperiid amphipods and salps
… These associations involve varying degrees of host specificity; and there are few obvious correlations between gross morphology of the amphipods and the types of host they choose. The mechanisms which allow hyperiids to find and select specific hosts in the water column were investigated …
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Noise and signal transmission properties as agents of selection in the vibrational communication environment
… species complex (Hemiptera: Membracidae) are host-specific phytophagous insects that communicate by sending vibrations through their host plants. Successful communication depends on the prevailing ecological and environmental conditions, which can affect communication behavior and the …
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