Index Catalog // ScholarsArchive@OSU

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:: fixation step does not take place inside the treatment plant but is a source of ammonia for the

Serpentine and non-serpentine edaphic ecology and the recovery of Lomatium cookii (Apiaceae), an endangered endemic of southwest Oregon

Creator:: Silvernail, Ian S.
Abstract:: The role of unusual geologies in plant distribution and form is well-known. Serpentine (ultramafic) soils exert a particularly strong influence on plants, as evidenced by a high level of endemism and the morphological and physiological traits displayed in adaptation to the extraordinary chemistry of these substrates. Adaptation may lead to...
Resource Type:: Masters Thesis
Full Text:: Ian S. Silvernail for the degree of Master of Science in Botany and Plant Pathology presented on

Influence of atmospheric humidity on sporulation of Sphaerotheca pannosa (Wallr.) Lev. var. rosae Wor.

Creator:: Hural, Kirsten
Abstract:: The influence of atmospheric humidity on three aspects of sporulation of Sphaerotheca pannosa (Wallr.) Lev. var. rosae Wor., which causes rose powdery mildew, was studied on leaf disks of susceptible Rosa cultivar Samantha. To study conidiophore production, leaf disks were inoculated on the adaxial (upper) surface with conidia of S....
Resource Type:: Masters Thesis
Full Text:: of Master of Science in Botany and Plant Patholoey presented on April 14. 1986. Title: INFLUENCE OF

Ammonia-oxidizer and denitrifier populations in boreal forest soils of differing nitrogen availability

Creator:: Burton, Marci S.
Abstract:: Nitrification and denitrification are major biological processes transforming nitrogen (N) in soils to plant available N, highly leachable nitrate (NO₃⁻) and gaseous N oxides. Although many studies in the past have studied N cycling communities, the effect of increased N inputs on ammonia-oxidizer and denitrifier population dynamics is still under...
Resource Type:: Masters Thesis
Full Text:: processes transforming nitrogen (N) in soils to plant available N, highly leachable nitrate (NO3-) and

Nitrogen fixation and cycling in a mixture of young red alder and Douglas-fir

Creator:: Tang, James Y.
Resource Type:: Masters Thesis
Full Text:: reference plant selection. The total N derived from N2 fixation (TNDF) was estimated to be about 22 kg N ha

Sulfur oxidation and rhodanese activity in soils

Creator:: Deng, Shiping
Resource Type:: Masters Thesis
Full Text:: contributions of S for plant growth. Other factors that have contributed to the need for S are higher yield

Inhibition of the ammonia oxidizing bacteria Nitrosomonas europaea by the emerging contaminant triclosan

Creator:: Hughes, Jamie L.
Abstract:: Identifying the inhibition of ammonia oxidizing bacteria (AOB) by emerging organic contaminants is crucial due to the importance of AOB in wastewater treatment, the widespread use of antibacterial agents such as triclosan (TCS) in consumer products, and the sensitivity of N. europaea to inhibitors. Triclosan inhibition of nitrification by AOB...
Resource Type:: Masters Thesis
Full Text:: rates through wastewater treatment range from 58-98% depending on the plant type (trickling filter

Preliminary investigation of microbial indicators in the assessment of Oregon streams

Creator:: Campbell, Heidi M. K.
Abstract:: The Environmental Monitoring and Assessment Program (EMAP) site selection protocol was used to generate a random sample of streams throughout the state of Oregon. One hundred and forty-six selected streams were sampled during the summer, low-flow period of 1997. Traditional microbial public health indicators, including heterotrophic plate counts (HPC), total...
Resource Type:: Masters Thesis
Full Text:: decaying plant material and soils (Rivera et al., 1988), however, concentrations of FCs are generally

Microbiological control of food spoilage and pathogenic microorganisms in refrigerated foods

Creator:: Al-Zoreky, Nageb
Abstract:: Microgard, a commercially-available pasteurized fermented milk, was found inhibitory to gram negative bacteria such as Pseudomonas putida, some well-known foodborne pathogens (e.g. Salmonella, Yersinia and Aeromonas) and some fungi as revealed by an agar incorporation assay method. Gram positive bacteria, however, were not inhibited. Rather, some bacteria in this group...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

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

Serpentine and non-serpentine edaphic ecology and the recovery of Lomatium cookii (Apiaceae), an endangered endemic of southwest Oregon

Influence of atmospheric humidity on sporulation of Sphaerotheca pannosa (Wallr.) Lev. var. rosae Wor.

Ammonia-oxidizer and denitrifier populations in boreal forest soils of differing nitrogen availability

Nitrogen fixation and cycling in a mixture of young red alder and Douglas-fir

Sulfur oxidation and rhodanese activity in soils

Inhibition of the ammonia oxidizing bacteria Nitrosomonas europaea by the emerging contaminant triclosan

Preliminary investigation of microbial indicators in the assessment of Oregon streams

Microbiological control of food spoilage and pathogenic microorganisms in refrigerated foods

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search