Index Catalog // ScholarsArchive@OSU

Understanding chlamydial biology through genome sequencing and comparative genomics

Creator:: Jeffrey, Brendan
Abstract:: The human pathogen Chlamydia trachomatis displays different phenotypes between serovars both in vivo and in vitro. The study of chlamydial biology has been hampered by the lack of a tractable genetic system. Here, chlamydial isolates with known phenotypes as well as strains generated though recombination were fully sequenced to address...
Resource Type:: Dissertation
Full Text:: G. Chu performed the transcriptional analysis. Brendan Jeffrey sequenced and assembled the

Genome-enabled discovery and characterization of type III effector-encoding genes of plant symbiotic bacteria

Creator:: Kimbrel, Jeffrey A.
Abstract:: Symbiosis is the close and protracted interaction between organisms. The molecular interactions that occur during symbiosis are complex with multiple barriers that must be overcome. Many Gram-negative, host-associated bacteria use a type III secretion system to mediate associations with their eukaryotic hosts. This secretion system is a specialized apparatus for...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Jeffrey A. Kimbrel for the degree of Doctor of Philosophy in Molecular and Cellular

The aging endoplasmic reticulum

Creator:: Dixon, Brian M.
Abstract:: Hallmarks of aging include the accumulation of aberrant proteins and a lower resistance to stresses. Because the endoplasmic reticulum (ER) functions to fold proteins and possesses unique stress sensing pathways, the central hypothesis of this dissertation is that the ER is a target of cellular aging and significantly underlies these...
Resource Type:: Dissertation

Host-Induced Gene Silencing in Black Cottonwood for Control of Septoria Canker: Efficacy and Non-Target Impacts

Creator:: Gordon, Michael I.
Abstract:: Septoria canker remains the most important disease of poplars in intensively managed forest plantations. Genetic resistance has long been considered the best way to manage for this disease. Transgenic resistance mediated by RNA silencing against pathogens and pests (HIGS: host-induced gene silencing) has shown promise in other pathosystems but has...
Resource Type:: Dissertation
Full Text:: (Muchero et al., 2018). A functional allele for G-type lectin receptor-like protein kinase combined with

Some potential mechanisms for finely-tuned regulation of phospholipase C-β isozymes : studies of dimerization and phosphatidylinositol 3,4,5-trisphosphate activation

Creator:: Zhang, Yong
Abstract:: Phospholipase C-β (PLC-β) isozymes are key effectors in G protein-coupled signaling pathways. Prior research suggested that some isoforms of PLC-β may exist and function as dimers, but little is known about dimerization of PLC-β. Data from coimmunoprecipitation assays of differentially-tagged PLC-β constructs and sizeexclusion chromatography of native PLC-β support homodimerization...
Resource Type:: Dissertation
Full Text:: -β (PLC-β) isozymes are key effectors in G protein-coupled signaling pathways. Prior research

In vitro and in vivo approaches for the functional characterization of the scaffold protein, GRASP

Creator:: Venkataraman, Anand
Abstract:: Studies using the pluripotent embryonic carcinoma cell line, P19, as a retinoic acid (RA)-responsive model system have been instrumental towards our understanding of the RA-dependent signaling pathways in development and homeostasis. Grp1-associated scaffold protein (GRASP; also known as Tamalin) was first identified by our group, as a gene robustly induced...
Resource Type:: Dissertation
Full Text:: , a guanine nucleotide exchange factor for the small G protein, Arf6. In this study we show GRASP

Age-related alterations in transcriptional regulation of hepatic glutathione synthesis : remediation by R-alpha-lipoic acid

Creator:: Shenvi, Swapna V.
Abstract:: Glutathione (GSH) is the predominant low molecular weight thiol antioxidant in liver tissue. GSH plays an important role in maintaining the intracellular thiol redox ratio as well as detoxification of electrophiles and xenobiotics. Aging leads to a significant decline (35%; P ≤ 0.05) in hepatocellular GSH levels. Using young (2-4...
Resource Type:: Dissertation
Full Text:: like to thank my graduate committee members, Drs. William Baird, Balz Frei, Jeffrey Greenwood, and

Dissecting the cytoskeletal interaction during cytokinesis and the role of myosin II motors on homologous chromosomes

Creator:: Tseng, Kuo-Fu
Abstract:: Prior to cell cleavage, cytokinetic proteins are recruited into the nascent actomyosin contractile ring. Interactions between spindle microtubules and the cell cortex play a critical role in this recruitment. However, direct evidence for physical interaction between microtubules and the cortex has been lacking. Here we reveal the physical connection between...
Resource Type:: Dissertation

Investigating Transcriptional Control of Specialized Gene Expression in Plants

Creator:: Fraser, Valerie N.
Abstract:: Specialized or secondary metabolism is a collection of pathways and small molecules that, while beneficial to an organism, are not strictly necessary for survival. Plants use secondary metabolites to, among other things, attract pollinators, defend against biotic and abiotic stressors, and form symbioses. Natural products from plants have seen an...
Resource Type:: Dissertation
Full Text:: retired. To each of my committee members—Dr. John Fowler, Dr. Jeffrey Anderson, Dr. Michael Freitag

Vitamin E and the alpha-tocopherol transfer protein during zebrafish embryogenesis

Creator:: Miller, Galen W.
Abstract:: Vitamin E was first described in 1922 as an unknown factor required for impregnated rats to carry their offspring to term. In fact, when vitamin E was chemically characterized it was given the name "tocopherol" derived from the Greek: tokos = childbirth; phero = to bear; and –ol, indicating an...
Resource Type:: Dissertation
Full Text:: Maret G. Traber Vitamin E was first described in 1922 as an unknown factor required for

ScholarsArchive@OSU

Understanding chlamydial biology through genome sequencing and comparative genomics

Genome-enabled discovery and characterization of type III effector-encoding genes of plant symbiotic bacteria

The aging endoplasmic reticulum

Host-Induced Gene Silencing in Black Cottonwood for Control of Septoria Canker: Efficacy and Non-Target Impacts

Some potential mechanisms for finely-tuned regulation of phospholipase C-β isozymes : studies of dimerization and phosphatidylinositol 3,4,5-trisphosphate activation

In vitro and in vivo approaches for the functional characterization of the scaffold protein, GRASP

Age-related alterations in transcriptional regulation of hepatic glutathione synthesis : remediation by R-alpha-lipoic acid

Dissecting the cytoskeletal interaction during cytokinesis and the role of myosin II motors on homologous chromosomes

Investigating Transcriptional Control of Specialized Gene Expression in Plants

Vitamin E and the alpha-tocopherol transfer protein during zebrafish embryogenesis

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