Index Catalog // ScholarsArchive@OSU

Creation of an efficient protein expression and secretion system in the gram-positive bacterial vector, Streptococcus gordonii

Creator:: Myscofski, Dawn M.
Abstract:: Streptococcus gordonii (S. gordonii) is being developed as a Gram-positive expression vector for the expression of heterologous proteins. This bacterial expression system takes advantage of the natural pathway of protein export and anchoring on the surface of the bacterium. The expression of heterologous proteins relies on the homologous recombination of...
Resource Type:: Dissertation
Full Text:: M. Myscofski for the degree of Doctor of Philosophy in Molecular and Cellular Biology presented on

Symbiotic and saprophytic characteristics of a soil population of Rhizobium leguminosarum bv. trifolii

Creator:: Yap, Kathryn H. M.
Abstract:: Although much has been learned about the comparative nodulating behavior of simple mixtures of rhizobial strains under non-soil situations, it is unclear how these findings relate to the factors influencing nodulation success by the complex mixtures of strains found within soil-borne rhizobial populations. Information on the structure and physiological behavior...
Resource Type:: Masters Thesis
Full Text:: population of Rhizobium leguminosarum bv. trifolii AN ABSTRACT OF THE THESIS OF Kathryn H. M. Yap for the

Effects of o,p'-DDE on the immune system of juvenile chinook salmon (Oncorhynchus tshawytscha)

Creator:: Milston, Ruth Helen
Abstract:: Environmental factors such as chemical contamination can have immunomodulatory effects on the immune response of fish and may be contributing to the decline in salmonid populations by augmenting disease susceptibility. Xenobiotics can interfere with the immune system at several levels of complexity, and different immune cells and processes have variable...
Resource Type:: Masters Thesis
Full Text:: all members of my committee, including Drs. Jo-Aim Leong and Dan Edge. I thank everyone in the

Sex determination in Nile tilapia, Oreochromis niloticus: gene expression, masculinization methods, and environmental effects

Creator:: Sánchez, Wilfrido M. Contreras
Abstract:: Sex differentiation in fish is a labile process that allows sex inversion in several species. The inherent capacity of fish germ cells to differentiate into oocytes or spermatocytes constitutes a key factor allowing for functional sex inversion. This thesis set out to determine the mechanism involved in steroid-induced sex differentiation...
Resource Type:: Dissertation
Full Text:: Wilfrido M. Contreras Sanchez for the degree of Doctor of Philosophy in Fisheries Science presented on

The effect of photoperiod and temperature on ovarian development and fat production in Culex peus Speiser (Diptera:Culicidae)

Creator:: Skultab, Seeviga
Abstract:: The effect of photoperiod and temperature on ovarian follicle development and fat production was studied in a colonized population of CuZex peus Speiser from Philomath, Oregon. Females were subjected to simulated fall conditions of photoperiod and temperature. Under a combination of short photoperiod and low temperature, there were various effects...
Resource Type:: Masters Thesis
Full Text:: wish to thank Dr. Rod Frakes, Dr. Jo-Ann Leong and Dr. Michael Burgett for serving on my committee. I

Cloning, heterologus expression, and characterization of the cytochrome P450 monooxygenases in rainbow trout (Oncorhynchus mykiss)

Creator:: Yang, Yea-Huey
Resource Type:: Dissertation
Full Text:: , Dr. Jo-Ann Leong, and Dr. Henry Schaup for serving on my advisory committee, and Dr. James Baggett

Virulence characteristics of infectious pancreatic necrosis virus (IPNV) in brook trout, Salvelinus fontinalis, fry

Creator:: Maret, Joseph J.
Abstract:: Infectious pancreatic necrosis (IPN) is an acute, contagious disease of trout fry and fingerlings caused by viruses of the family birnaviridae. IPN disease usually results in mortality that is inversely proportional to the age of the fish. While many studies have been carried out to increase our understanding of IPN,...
Resource Type:: Masters Thesis
Full Text:: on my research. I would also like to thank the other members of my committee, Robert Olson, Jo-Ann

Characterization of the infection cycle of the Orgyia pseudotsugata multicapsid nuclear polyhedrosis virus in Lymantria dispar cells

Creator:: Bradford, Mary Beth
Abstract:: The Baculoviridae is a family of DNA viruses which are obligate pathogens for a variety of insects. Baculovirus strains came to the attention of researchers because they provided a nonchemical alternative for the biological control of insect pests of agriculture and forestry (Ignoffo, 1968); however, recently they have been studied...
Resource Type:: Masters Thesis
Full Text:: ; Dr. George Pearson, Dr. Jo-Ann Leong, and Dr. Stephen Kaattari for taking time out of their busy

Structural and functional analysis of the 57 kDa protein produced by the fish pathogen, Renibacterium salmoninarum

Creator:: Wiens, Gregory D.
Abstract:: Little is known about the virulence factors of Renibacterium salmoninarum, the causative agent of salmonid bacterial kidney disease. The predominant protein produced by R. salmoninarum in broth culture or during infection is a 57/58 kDa protein (p57) which is associated with strain virulence. In this study monoclonal antibodies (MAbs) to...
Resource Type:: Dissertation
Full Text:: with a family illness. Additionally, I would like to thank my committee members Dr. John Fryer, Dr. Jo

Bacteriophage T4 ribonucleotide reductase : genes and proteins

Creator:: Hanson, Eric Scott
Resource Type:: Dissertation
Full Text:: . Lastly, I thank the members of my committee, Drs. Christopher Mathews, Douglas Barofsky, Shing Ho, Jo-Ann

ScholarsArchive@OSU

Creation of an efficient protein expression and secretion system in the gram-positive bacterial vector, Streptococcus gordonii

Symbiotic and saprophytic characteristics of a soil population of Rhizobium leguminosarum bv. trifolii

Effects of o,p'-DDE on the immune system of juvenile chinook salmon (Oncorhynchus tshawytscha)

Sex determination in Nile tilapia, Oreochromis niloticus: gene expression, masculinization methods, and environmental effects

The effect of photoperiod and temperature on ovarian development and fat production in Culex peus Speiser (Diptera:Culicidae)

Cloning, heterologus expression, and characterization of the cytochrome P450 monooxygenases in rainbow trout (Oncorhynchus mykiss)

Virulence characteristics of infectious pancreatic necrosis virus (IPNV) in brook trout, Salvelinus fontinalis, fry

Characterization of the infection cycle of the Orgyia pseudotsugata multicapsid nuclear polyhedrosis virus in Lymantria dispar cells

Structural and functional analysis of the 57 kDa protein produced by the fish pathogen, Renibacterium salmoninarum

Bacteriophage T4 ribonucleotide reductase : genes and proteins

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