Biology URC Student Scholarship
Recent Submissions
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Redox Effects on Cell Growth and Protein Solubility
(2002-01-01)It has been shown that the redox potential of the cellular environment has an acute effect on the different processes of <i style="mso-bidi-font-style: normal">E. coli . First, redox molecules affect cellular respiration, ... -
Expression Silencing of DNA Repair Genes in Cultured Cells
(2003-01-01)DNA repair systems function as the last resort to permanent DNA mutation. Specific genes correspond to specific repair systems: MPG is involved in base excision repair (BER); XPA is vital for nucleotide excision repair ... -
Abundance and Size Variations in Eelgrass-Associated Fish Assemblages In San Diego Bay
(2012-07-01)With approximately 12,000 acres of marine habitat, San Diego Bay is the largest naturally occurring marine embayment between San Francisco and Scammon’s Lagoon (central Baja CA) and is home to a wide diversity of species ... -
Abundance, Distribution, and Size Frequency of Three Emergent Fishery Species in Palos Verdes, CA
(2013-01-01)Kelletia kelletii, Megastraea undosa, and Megathura crenulata are three emergent fisheries that have gained commercial importance along the southern coast of California. Life history data and commercial regulations on these ... -
Herbivory on Toxic Plants and Gut Microbial Diversity in Tropical Katydids
(2012-07-01)Members of the Orthopteran family Tettigoniidae are among the best leaf mimics in the Costa Rican rainforest. While camouflage helps protect against predators, there is still the danger of consuming plants loaded with ... -
Investigating Insect Interactions on Pentaclethra macroloba
(2012-07-01)Pentaclethra macroloba is a dominant canopy tree found in humid tropical forests from Honduras to Brazil, comprising 30-40% of all basal area at La Selva Biological Station, Costa Rica. To understand the full role that ... -
Terminating DNA Repair Through Disruption of the SUMO Cycle
(2006-01-01)Dr. Jianghai Wang in Dr. Yuan Chen?s lab at City of Hope is investigating the role of SUMO (Small Ubiquitin-like Modifier) proteins in DNA repair through the study of the SUMO cycle. We know the basic cycle that SUMO takes ... -
Purification and Inactivation of Recombinant Phospholipase D: Approaches to Developing a Corynebacterium Pseudotuberculosis Vaccine
(2011-01-01)Corynebacterium pseudotuberculosis is a gram-positive bacterium that causes one of the most frequent equine infectious diseases in the Western United States. Horses exposed to the equine C. pseudotuberculosis biovar ... -
The Equine Immune Response to Corynebacterium pseudotuberculosis: A Murine Model Luca Faustino Valle and Dina Abdel-Masih
(2008-01-01)Pigeon Fever is a seasonal disease in horses caused by the Gram positive bacterium Corynebacterium pseudotuberculosis. The bacterium produces an exotoxin, Phospholipase D (PLD), which provokes both internal and external ... -
The Roles of Equine Antibody and Cell Mediated Responses in Determining the Various Manifestations of Pigeon Fever
(2010-01-01)Corynebacterium pseudotuberculosis is a facultative intracellular pathogen with pleomorphic forms. While two forms of the bacteria exist, in our study, we are most concerned with the equi biovar, the strain that affects ... -
The Equine Immune Response to Corynebacterium pseudotuberculosis : The Cytokine Response
(2009-01-01)Pigeon fever is a deadly affliction affecting horses and has three forms: internal abscesses, external abscesses, and ulcerative lymphangitis. As with leprosy, where TH1 and TH2 immunity determines the outcome of the ... -
Immune Response of Horses to Corynebacterium pseudotuberculosis : The Major Exotoxin Phospholipase D
(2009-01-01)Corynebacterium pseudotuberculosis is a bacterium that infects horses and many large animal species worldwide. Infections of the bacteria cause ?Dryland Distemper? or ?Pigeon Fever?, characterized by large external abscesses ... -
The Equine Immune Response to Corynebacterium pseudotuberculosis: the Antibody Response
(2009-01-01)Corynebacterium pseudotuberculosis is a gram-positive facultative intracellular bacterium that causes a disease called pigeon fever or dryland distemper in horses. Pigeon fever is endemic in the Southwest , C. ... -
A Mouse Model for Corynebacterium Pseudotuberculosis Vaccine Development
(2011-01-01)Pigeon fever is an equine disease caused by the bacteria Corynebacterium pseudotuberculosis . These gram-positive bacteria infect horses in the Western part of the United States and lead to three types of disease ... -
The Equine Immune Response to C. Pseudotuberculosis : A Multifaceted Approach
(2010-01-01)Pigeon Fever is an equine disease caused by the gram positive bacteria Corynebacterium pseudotuberculosis . The common form of the disease, characterized by external abscesses, is one of the most frequently occurring ... -
Quantification of Methanogenic Microbes Associated with Tropical Bromeliads: Influences on Function and Abundance
(2011-01-01)Plants within the family Bromeliaceae possess unique foliage arranged in compact rosettes capable of retaining water. This unusual freshwater environment allows for the growth of anaerobic methanogenic archaea, which are ... -
Optimizing Purification and Inactivation of Recombinant Corynebacterium pseudotuberculosis Phospholipase D
(2011-01-01)Corynebacterium pseudotuberculosis is a Gram-positive pathogenic bacterium with pleomorphic forms. Two forms of the bacteria exist, which target different species: the equi biovar and the ovis biovar. Our research focuses ... -
Generation of Monoclonal Antibodies to Conus Venom Peptides c1e and c4a
(2010-01-01)Peptides found within cone snail venom (i.e. conotoxins) have neuroexcititory or neuroinhibitory activity, with individual conotoxins targeting a particular isoform of a receptor or ion channel. Because of their specificity ... -
Purification of Phospholipase D: Corynebacterium pseudotuberculosis ? Major Exotoxin
(2010-01-01)Corynebacterium pseudotuberculosis is a gram positive bacteria that poses a significant threat to large farm animals. Conspicuous external abscesses or fever and lethargy with possible internal abscesses indicate infection ...