Index Catalog // ScholarsArchive@OSU

Stable isotope probing of the ovine rumen for RDX degrading microorganisms

Creator:: Mitchell, Edward A.
Abstract:: The anaerobic and highly reductive conditions found in the ovine rumen are considered favorable for the degradation of the nitroaromatic explosives such as hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX). In this study, we used stable-isotope-probing to determine the bacteria responsible for the degradation of RDX in the rumen. Results indicate 10 μg mL⁻¹ (45...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Edward A

Molecular characterization of bacterial populations implicated inthe anaerobic metabolism of toxic plant alkaloids from two different experimental and environmental sources

Creator:: Rattray, Rogan MacKay
Abstract:: There have been many studies that describe the protective degradation or metabolism of potentially harmful plant toxins, such as, mimosine from Leucaena leuconcephala, pyrrolizidine alkaloids from tansy ragwort (Senecio jacobaea), oxalate and some mycotoxins by rumen microbes. There are many cases of plant-related toxicoses suffered by ruminant animals where there...
Resource Type:: Masters Thesis
Full Text:: Sources. Abstract approved: _____________________________________________________ A. Morrie

Utilization of inorganic and organic nitrogen by phytoplankton off the Washington and Oregon coasts

Creator:: Kokkinakis, Steven Andon
Resource Type:: Masters Thesis
Full Text:: : Patricia A. Wheeler Uptake of NO3, NH4+, and urea was measured using tracers during the July 1985

Nitrogen fluxes through microbial communities from Yaquina Bay (Oregon)

Creator:: Jamerlan, Saturnino Juan
Resource Type:: Masters Thesis
Full Text:: through Microbial Communities from Yaquina Bay (Oregon) Abstract approved: Patricia A. Wheeler The

Analysis of Bacteroidales 16S rRNA gene sequences from a geographically isolated human population

Creator:: Petersen, Carolyn A.
Abstract:: Standard methods of measuring fecal pollution in water do not distinguish between human and non-human sources. Molecular technology enabled the development of host-specific markers that distinguish fecal sources. Human specific PCR primers, HF183F and HF134F, were designed based on phylogenetic analyses of partial 16S rRNA gene sequences from the Bacteroidales...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Carolyn A. Petersen for the degree of Master of Science in Microbiology presented on

Physiological response of Nitrosomonas europaea to oxytetracycline, chromium, and silver

Creator:: Schaerer, Morgan A.
Abstract:: Nitrosomonas europaea carries out the first step in the biological nitrogen removal process in wastewater treatment by oxidizing ammonia to nitrite. It has been shown to be sensitive to a wide range of contaminants. The antibiotic oxytetracycline and the heavy metals chromium and silver have been found in wastewater influent....
Resource Type:: Masters Thesis
Full Text:: Morgan A. Schaerer for the degree of Master of Science in Chemical Engineering presented on September

Association of hydrophobic organic compounds with dissolved soil organic carbon

Creator:: Ochs, Michael
Abstract:: Volatile hydrophobic compounds (HOCs) brought into soil and sediment systems represent a serious threat to the environment. Dissolved organic carbon (DOC) may exert an important influence over the total aqueous solubility and mobility of organic pollutants through their incorporation into micelles or the formation of soluble complexes. To date, however,...
Resource Type:: Masters Thesis
Full Text:: . Robert Collier, Peter Bottomley, and A. Jon Kimerling, for serving as my graduate committee, and for

The genetic diversity of Ceanothus-infective Frankia

Creator:: Ritchie, Nancy J.
Abstract:: Frankia from root nodules of nine different species of Ceanothus were characterized. DNA was amplified directly from nodular material using the polymerase chain reaction (PCR). The amplified region includes the 3' end of the 16S rRNA gene, the intergenic spacer (IGS), and a large portion of the 23S rRNA gene....
Resource Type:: Masters Thesis
Full Text:: amplified region includes the 3' end of the 16S rRNA gene, the intergenic spacer (IGS), and a large portion

Field management effects on the thermal stability and activity of soil enzymes in whole soil and aggregates

Creator:: Bandick, Anna Katrina
Resource Type:: Masters Thesis
Full Text:: ) straw plus manure (MAN). Soil also was sampled at the research center from a grass pasture (PAS) that

Mycobacterium avium genes upregulated upon infection of Acanthamoeba castellanii demonstrate a common response to the intracellular environment

Creator:: Tennant, Rachel C.
Abstract:: Mycobacterium avium is a ubiquitous environmental organism found in both water and soil. It can cause disease in patients with previous pulmonary conditions, as well as immunosupressed patients, with the most prevalent being AIDS patients. Studies have indicated that passage through amoeba, a common environmental protozoa, increases virulence of M....
Resource Type:: Masters Thesis
Full Text:: upregulated upon infection of Acanthamoeba castellanii demonstrate a common response to the intracellular

ScholarsArchive@OSU

Stable isotope probing of the ovine rumen for RDX degrading microorganisms

Molecular characterization of bacterial populations implicated inthe anaerobic metabolism of toxic plant alkaloids from two different experimental and environmental sources

Utilization of inorganic and organic nitrogen by phytoplankton off the Washington and Oregon coasts

Nitrogen fluxes through microbial communities from Yaquina Bay (Oregon)

Analysis of Bacteroidales 16S rRNA gene sequences from a geographically isolated human population

Physiological response of Nitrosomonas europaea to oxytetracycline, chromium, and silver

Association of hydrophobic organic compounds with dissolved soil organic carbon

The genetic diversity of Ceanothus-infective Frankia

Field management effects on the thermal stability and activity of soil enzymes in whole soil and aggregates

Mycobacterium avium genes upregulated upon infection of Acanthamoeba castellanii demonstrate a common response to the intracellular environment

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