Index Catalog // ScholarsArchive@OSU

Gene-specific antibiotic development: Evaluating effectiveness and investigating antibiotic-resistant Escherichia coli mutants of phosphorodiamidate morpholino oligomers

Creator:: Puckett, Susan E.
Abstract:: Phosphorodiamidate morpholino oligomers (PMOs) are novel antisense drugs in the early stages of development. These synthetic DNA mimics contain the same bases found in DNA and anneal to RNA in a complementary fashion. PMOs have been designed that target genes responsible for producing essential proteins in organisms such as Escherichia...
Resource Type:: Honors College Thesis
Full Text:: project, answering all of my questions, and helping me with my thesis. Finally, thank you Brett Mellbye

Quorum-sensing-controlled public goods in Pseudomonas aeruginosa : regulation and application

Creator:: Mellbye, Brett L.
Abstract:: Cell-to-cell communication by chemical signals, termed quorum sensing (QS), is a common regulatory scheme in the microbial world. Pseudomonas aeruginosa¸ an opportunistic pathogen of burn wounds and cystic fibrosis lungs, uses QS to control the expression of hundreds of genes, particularly those necessary for population level benefits such as biofilm...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Brett L. Mellbye for the degree of Doctor of Philosophy in

A genomic and proteomic characterization of the first cultured oligotrophic marine Gammaproteobacterium from the SAR92 clade

Creator:: Mellbye, Brett L.
Abstract:: High-throughput culturing (HTC) consisting of extinction culturing in autoclaved seawater has led to the isolation and characterization of many novel strains of oligotrophic marine bacteria. Strain HTCC 2207 was isolated from the Oregon coast by the HTC method. Phylogenetic analysis based on 16S rRNA gene sequence showed that this strain...
Resource Type:: Honors College Thesis
Full Text:: THESIS OF Brett L. Mellbye for the degree of Honors Baccalaureate of Science in Microbiology presented

Combating take-all root rot of winter wheat in western Oregon [2008]

Creator:: Oregon State University. Extension Service, Christensen, Neil Walter, 1944-, and Hart, John M. (John Mervyn), 1947-
Abstract:: Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: . Mellbye. 2008. Nutrient Management Guide for Soft White Winter Wheat in Western Oregon. Oregon State

Antisense Antibiotics

Creator:: Mitev, Georgi Mitko
Abstract:: Two different types of Phosphorodiamidate Morpholino Oligomers (PMOs) were used to inhibit growth in pure cultures of Salmonella enterica serovar typhimurium and in mouse macrophages infected with S. typhimurium. Both PMOs were 11 bases long and complementary to bases 6-16 of acyl carrier protein mRNA. A membrane-penetrating peptide, (RXR)4XB, was...
Resource Type:: Honors College Thesis
Full Text:: her excellent guidance, Brett Mellbye for assistance with my project, Shannon Oda for teaching me

The Fitness Costs and Regulatory Strategies of Cooperative Siderophore Production in Pseudomonas

Creator:: Sexton, David
Abstract:: Cooperative behaviors in bacteria are increasingly appreciated for their relevance to microbial ecology and utility as model systems for social evolution. One example is the secretion of siderophores, a structurally diverse group of compounds that chelate extracellular iron. Siderophore production is considered cooperative because the benefits can be shared with...
Resource Type:: Dissertation
Full Text:: strains and expertise on Pf-5. I’d like to thank Brett Mellbye for teaching me how to use the chemostat

Transcriptome Responses of the Nitrifying Bacteria Nitrosomonas europaea and Nitrobacter hamburgensis to Low Oxygen

Creator:: Dobie, Michael
Abstract:: Nitrification is the process within the global Nitrogen Cycle where ammonia (NH3) is oxidized to nitrate (NO₃⁻) and can be carried out by two distinct groups of bacteria. The ammonia-oxidizing bacteria (AOB) first oxidize NH₃ to nitrite (NO₂⁻), and second, the nitrite-oxidizing bacteria (NOB) oxidize NO₂⁻ to NO₃⁻. In aerobic...
Resource Type:: Masters Thesis
Full Text:: and Dr. Brett Mellbye would prove beneficial to my presentation skills and confidence as a presenter

An Examination of Factors Controlling the Activity of Ammonia- and Nitrite-oxidizers in Diverse Soils

Creator:: Giguere, Andrew T.
Abstract:: Nitrification is a critical step in the global nitrogen cycle involving the biological oxidation of ammonia (NH₃) to nitrite (NO₂⁻ ) and then to nitrate (NO₃⁻). The first step in nitrification is carried out by NH₃-oxidizing bacteria (AOB) and archaea (AOA), and the second by NO₂⁻-oxidizing bacteria (NOB). In addition...
Resource Type:: Dissertation
Full Text:: to Luis Sayavedra-Soto and Brett Mellbye for their insightful conversations, technical assistance

Soil acidity in Oregon : understanding and using concepts for crop production

Creator:: Hart, John M. (John Mervyn), 1949-, Sullivan, Dan M. (Dan Matthew), 1954-, Anderson, Nicole P., Hulting, Andrew Gerald, Horneck, Donald Arthur, Christensen, Neil Walter, 1944-, and Oregon State University. Extension Service
Abstract:: Soil acidity, expressed by low soil pH, causes reduced crop growth and significant economic loss. It is the most commonly overlooked and poorly understood yield-limiting factor in western Oregon and a developing concern in eastern Oregon. This publication describes the concept of soil acidity and the limitations it causes for...
Resource Type:: Technical Report
Full Text:: ) was about 75 percent of that produced in a limed soil with a pH of 5.5 (Hart and Mellbye, 2010

Impact of Dairy Manure Digestate on Microbial Activities in Soil

Creator:: Waggoner, Ashley L
Abstract:: Amendments and fertilizers applied to optimize crop production and improve soil health also supply inputs of soil organic matter (SOM) and nutrients that affect soil microorganisms. In the dairy-intensive Pacific Northwest, dairy manure is stored as slurry mixtures until conditions are appropriate for soil application. During storage, the manure begins...
Resource Type:: Dissertation
Full Text:: ., Mellbye, B.L., Sayavedra-Soto, L.A., Bottomley, P.J., 2018. Nitrite-oxidizing activity responds to

ScholarsArchive@OSU

Gene-specific antibiotic development: Evaluating effectiveness and investigating antibiotic-resistant Escherichia coli mutants of phosphorodiamidate morpholino oligomers

Quorum-sensing-controlled public goods in Pseudomonas aeruginosa : regulation and application

A genomic and proteomic characterization of the first cultured oligotrophic marine Gammaproteobacterium from the SAR92 clade

Combating take-all root rot of winter wheat in western Oregon [2008]

Antisense Antibiotics

The Fitness Costs and Regulatory Strategies of Cooperative Siderophore Production in Pseudomonas

Transcriptome Responses of the Nitrifying Bacteria Nitrosomonas europaea and Nitrobacter hamburgensis to Low Oxygen

An Examination of Factors Controlling the Activity of Ammonia- and Nitrite-oxidizers in Diverse Soils

Soil acidity in Oregon : understanding and using concepts for crop production

Impact of Dairy Manure Digestate on Microbial Activities in Soil

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