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

Remediation of atrazine in irrigation runoff by a constructed wetland

Creator:: Runes, Heather B.
Abstract:: Due to its frequent use in agriculture and its frequent detection in surface water, atrazine was chosen as a model compound to study the treatment capability of a surface flow wetland used to remediate irrigation runoff at a container nursery near Portland, Oregon. Further evaluation of treatment of atrazine was...
Resource Type:: Dissertation
Full Text:: to thank Dr. Peter Bottomley who has acted much like a co-advisor and has helped with experimental

Evaluation of long term reacidification and growth of alfalfa on selected limed soils in western Oregon

Creator:: Doerge, Thomas A.
Resource Type:: Dissertation
Full Text:: alfalfa on selected limed soils in western Oregon AN ABSTRACT OF THE THESIS OF Thomas A. Doerge for the

Microbial analysis of coniferous forest and nursery soils : effects of ectomycorrhizae, volatiles, and humic-rich organic substrates

Creator:: Schisler, David Albert
Abstract:: Fusarium spp. frequent conifer nursery soils yet are rarely recovered from coniferous forest soils. Experiments were performed to determine what influence humic-rich organic amendments and volatiles from soil, ectomycorrhizal fungi and ectomycorrhizae have on the populations of several physiologic and taxonomic microbial groups potentially related to this phenomenon. A comparative...
Resource Type:: Dissertation
Full Text:: populations of several physiologic and taxonomic microbial groups potentially related to this phenomenon. A

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

Remediation of atrazine in irrigation runoff by a constructed wetland

Evaluation of long term reacidification and growth of alfalfa on selected limed soils in western Oregon

Microbial analysis of coniferous forest and nursery soils : effects of ectomycorrhizae, volatiles, and humic-rich organic substrates

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