Index Catalog // ScholarsArchive@OSU

Hydraulic predictors and seasonal distribution of Manayunkia speciosa density in the Klamath River, CA, with implications for ceratomyxosis, a disease of salmon and trout

Creator:: Jordan, Michelle S.
Abstract:: The freshwater polychaete Manayunkia speciosa was identified as an obligate host of the salmonid parasite Ceratomyxa shasta in 1997, prompting increased research on the small benthic invertebrate. Ceratomyxa shasta infection in fish can cause mortality, and presents a disease risk for both hatchery and wild salmon and trout. Ceratomyxa shasta...
Resource Type:: Masters Thesis
Full Text:: : Jerri L. Bartholomew, Gordon E. Grant The freshwater polychaete Manyaunkia speciosa was identified

Evolution of a streamlined cooperator in Pseudomonas aeruginosa quorum sensing

Creator:: Huie, Jessica L.
Abstract:: Social behavior leading to the production of common goods is prone to exploitation. One such behavior in Pseudomonas aeruginosa is quorum sensing (QS), by which the bacteria produce signals to regulate extracellular common goods. Exploitation comes in the form of cheaters which have a mutation in the central quorum sensing...
Resource Type:: Masters Thesis
Full Text:: pJHlasR5, pJHpsdR1, and pJHabcB1. The plasmids were transformed into E. coli DH5α Max Efficiency cells

The Genomic Capabilities of Microbial Communities Track Seasonal Variation in Arctic Lagoons

Creator:: Baker, Kristina D.
Abstract:: The lagoons spanning Alaska’s Beaufort Sea coast provide a unique habitat for arctic wildlife. These lagoons and the food webs they support face extreme seasonality with nine months of ice cover followed by a spring thaw that pulses a large amount of freshwater and nutrients into the lagoons. Bacteria link...
Resource Type:: Masters Thesis

Characterization of novel exopolysaccharide producing lactic acid bacteria

Creator:: Garcia, Roberto A., III
Abstract:: Lactic Acid Bacteria (LAB), an important group of organisms in modern food production, are known to secrete a unique compound called exopolysaccharide (EPS). EPS is economically important because it enhances functional properties in food and may confer beneficial health effects to consumers. Novel strains of Lactococcus lactis, Streptococcus thermophilus, and...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Janine E. Trempy Lactic Acid Bacteria (LAB), an important group of organisms in

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:: . International Journal of Infectious Diseases. 7. Bolyen E, Rideout JR, Dillon MR, Bokulich NA … Knight R

The Effects of Phytoplankton Prey Species and Nutrient Limitation on Microzooplankton

Creator:: McBeain, Kelsey Ann
Abstract:: Phytoplankton and microzooplankton comprise the base and the first link of the marine food web, respectively. These microbes are key drivers of marine carbon and nutrient cycles. Phytoplankton convert atmospheric CO₂ into organic carbon, and microzooplankton consume phytoplankton, packaging phytoplankton carbon into particulate forms that have a variety of fates:...
Resource Type:: Masters Thesis
Full Text:: conferred by different properties including size, type (e. g. diatom versus green algae), swimming

Reef Microbiomes of Mo'orea, French Polynesia, a Socio-Ecological Island System

Creator:: McConnell, Kaitlin M.
Abstract:: At a time of rapid global change, a socio-ecological system (SES) approach can provide a framework through which to quantify and communicate the risks and uncertainties of coupled human-natural systems. Islands, and tropical coral reef islands in particular, can be excellent models for SES research since they may be considered...
Resource Type:: Masters Thesis
Full Text:: Island Side n Habitat n= Wet 213 W 184 Fore 98 Dry 263 N 239 Back 280 E 53 Fringing 148

A comparative study of fish coloration and toxicant responses in a chromatophore cell-based biosensor

Creator:: Roach, Holly B.
Abstract:: Detection of both biological and chemical environmental toxicants is essential in the assessment of risk to human health. Cell-based biosensors are capable of activity- based detection of toxicity. Chromatophore cells, responsible for the pigmentation of poikilothermic animal, have shown immense potential as cell-based biosensors in the detection of a broad...
Resource Type:: Masters Thesis
Full Text:: approved: ________________________________________________________________________ Janine E. Trempy

Photosynthetic Energy Allocation Strategies of Thalassiosira pseudonana During Light Limited Growth

Creator:: Fisher, Nerissa L.
Abstract:: Photosynthetic energy allocation strategies were investigated in the marine diatom, Thalassiosira pseudonana, grown under a wide range of light limitation. Steady-state, continuous cultures were established at three light-limited growth rates. Simultaneous measurements of photosynthetic activity were made that targeted different points in photosynthetic energy flow from gross to net photosynthesis....
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Hydraulic predictors and seasonal distribution of Manayunkia speciosa density in the Klamath River, CA, with implications for ceratomyxosis, a disease of salmon and trout

Evolution of a streamlined cooperator in Pseudomonas aeruginosa quorum sensing

The Genomic Capabilities of Microbial Communities Track Seasonal Variation in Arctic Lagoons

Characterization of novel exopolysaccharide producing lactic acid bacteria

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

The Effects of Phytoplankton Prey Species and Nutrient Limitation on Microzooplankton

Reef Microbiomes of Mo'orea, French Polynesia, a Socio-Ecological Island System

A comparative study of fish coloration and toxicant responses in a chromatophore cell-based biosensor

Photosynthetic Energy Allocation Strategies of Thalassiosira pseudonana During Light Limited Growth

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