Index Catalog // ScholarsArchive@OSU

The response of nitrifying bacteria to treatments of N-Serve and Roundup in continuous-flow soil columns

Creator:: Rhodes, Albert N.
Abstract:: This study examined the effects of Roundup [N-(phosphonomethyl) glycine] and N-Serve [2-chloro-6- (trichloromethyl) pyridine] on nitrifying organisms in static batch, perfusion soil columns, and a new continuous-flow soil column system. The continuous-flow method is new to nitrification studies and was shown to produce greater nitrifier activity than either static batch...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy it Ramon J: Seidler This study examined the effects of Roundup [N-(phosphonomethyl

Enteric Redmouth Bacterium of salmonids : a biochemical and serological comparison of selected isolates

Creator:: O'Leary, Patrick John
Abstract:: A comparison of the agglutinating and precipatiating antigens of Enteric Redmouth Bacterium (ERMB) was made. There are two major and one minor agglutinating antigens which describe two serotypes (I and II). Only serotype I metabolizes sorbitol. A bacterin from serotype I cross protected against a challenge of bacteria of serotype...
Resource Type:: Masters Thesis
Full Text:: sincere gratitude to those who contributed directly or indirectly in this work. To Dr. J. L. Fryer for

Yersinia ruckeri : a characterization of the carrier state in steelhead trout (Salmo gairdneri)

Creator:: Hunter, Valerie Antoinette
Abstract:: Fish, asymptomatically infected with Enteric Redmouth Bacterium (ERMB), were tested for their ability to transmit bacteria to non-infected fish. Unstressed carrier fish were unable to transmit enough bacteria to cause epizootics or produce carrier fish. However, when the ERMB carriers were stressed with heat, sufficient bacteria were shed to infect...
Resource Type:: Masters Thesis
Full Text:: this work. To J. L. Fryer for his support and assistance and for allowing me to complete these

Nutritional factors associated with the presence and growth of Klebsiella in redwood environments

Creator:: Talbot, Henry Wilkinson
Abstract:: Bacteria of the genus Klebsiella have been found to be associated with redwood water storage reservoirs, redwood chips, and liquid expressed from within living redwood. A 1,000 gallon experimental redwood reservoir was employed to determine how to control the presence of Klebsiella and Enterobacter in drinking water stored in these...
Resource Type:: Dissertation
Full Text:: densities of Klebsiella likely to occur in nature. Literature Cited 11 1. Adler, J. L., J.A. Shulman, P

Subdivision of the genus Klebsiella on the basis of DNA-DNA membrane filter hybridization

Creator:: Woodward, Barton Clarke
Abstract:: The molecular relationship of 39 biochemically identified strains of Klebsiella pneumoniae was determined by DNA-DNA hybridization experiments. Cultures examined were isolated from vegetables, pulp mills, drinking water and clinical (human and animal) habitats. These organisms produced reassociation values of 7% to 100% with ATCC 13882 K. pneumoniae as the labeled...
Resource Type:: Masters Thesis
Full Text:: ON THE BASIS OF DNA-DNA MEMBRANE FILTER HYAIRIDIZATIOM . n Redacted for Privacy Rahon J. triner

Characterization of bacterial populations and turbidity effects in chlorinated drinking water

Creator:: LeChevallier, Mark W.
Abstract:: The present study was conducted as a three part investigation to (i) examine the incidence, distribution and kinds of standard plate count bacteria present in chlorinated and raw water; (ii) study the ecological role and possible health significance of Aeromonas spp. in distribution water, and (iii) evaluate the effects of...
Resource Type:: Masters Thesis
Full Text:: ., 1965. Am. J. Epidemiol. 93:49-54. 7. Buchanan, R. E., and N. E. Gibbons, (eds.). 1974. Bergey's

Characterizing the Accuracy of Phylogenetic Analyses that Leverage 16S rRNA Sequencing Data

Creator:: Humphreys, Ian R.
Abstract:: Investigations of 16S rRNA gene sequences hallmark modern microbiology. These sequences provide culture-independent insight into the abundance and distribution of microbiota and serve as a principle resource through which microbial community diversity is measured. Consequently, researchers rely on 16S gene sequences to test hypotheses rooted in ecology, evolution, and disease....
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ______________________________________________________ Thomas J. Sharpton

Characteristics of bradyrhizobium sp. recovered from Oregon soils

Creator:: Cheng, Hsin-hua
Abstract:: Although the biology of Bradyrhizobium has been studied for almost one hundred years, virtually nothing is known about the ecology and genetic variation in natural soil populations of this genus. The majority of information has been obtained from studies of one species, Bradyrhizobium japonicum, and the diversity within soil populations...
Resource Type:: Masters Thesis
Full Text:: soils. Redacted for Privacy Abstract Approved: Peter J. Bottoy Although the biology of

Ecophylogenetic Characterization of the Gut Microbiome of At-risk Companion and Food Animals

Creator:: Kirchoff, Nicole S.
Abstract:: Agricultural and companion animals are integral to our way of life as they provide us with nourishment, financial resources, transportation, and companionship. However, pets, managed animals in the agricultural industry, as well as wild populations of food animals are all subject to health and mortality risks. The gut microbiome is...
Resource Type:: Dissertation
Full Text:: approved: ______________________________________________________ Thomas J. Sharpton

Pathogenic, antigenic, and immunogenic properties of Aeromonas salmonicida studied in juvenile coho salmon (Oncorhynchus kisutch)

Creator:: Udey, Lanny R.
Abstract:: An additional layer, exterior to the outer membrane cellwall layer, was found on Aeromonas salmonicida cells from aggregating strains. Nonaggregating strains were found to lack this layer. The nonaggregating strains were all avirulent (LD₅₀ greater than 1 X 10 ⁸ CFU/fish) while the majority of the aggregating strains were virulent...
Resource Type:: Dissertation
Full Text:: presented Typed by Esther J. Byrd for Lanny R. Udey ACKNOWLEDGEMENTS I would like extend my

ScholarsArchive@OSU

The response of nitrifying bacteria to treatments of N-Serve and Roundup in continuous-flow soil columns

Enteric Redmouth Bacterium of salmonids : a biochemical and serological comparison of selected isolates

Yersinia ruckeri : a characterization of the carrier state in steelhead trout (Salmo gairdneri)

Nutritional factors associated with the presence and growth of Klebsiella in redwood environments

Subdivision of the genus Klebsiella on the basis of DNA-DNA membrane filter hybridization

Characterization of bacterial populations and turbidity effects in chlorinated drinking water

Characterizing the Accuracy of Phylogenetic Analyses that Leverage 16S rRNA Sequencing Data

Characteristics of bradyrhizobium sp. recovered from Oregon soils

Ecophylogenetic Characterization of the Gut Microbiome of At-risk Companion and Food Animals

Pathogenic, antigenic, and immunogenic properties of Aeromonas salmonicida studied in juvenile coho salmon (Oncorhynchus kisutch)

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