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Articles 1 - 8 of 8
Full-Text Articles in Life Sciences
Expression Analysis Of Micrornas And Microrna-Like Rnas In Aspergillus Flavus-Infected Aflatoxin Resistant And Susceptible Maize Inbred Lines, Amanda Benton Harper
Expression Analysis Of Micrornas And Microrna-Like Rnas In Aspergillus Flavus-Infected Aflatoxin Resistant And Susceptible Maize Inbred Lines, Amanda Benton Harper
Theses and Dissertations
Corn (Zea mays) is frequently infected by a soil fungal pathogen Aspergillus flavus. The fungus produces aflatoxins, which cause liver cancer. Maize inbred lines that are resistant to infection by A. flavus have been developed, and these inbred lines provide excellent models for studying molecular mechanisms of maize resistance to the fungus. MicroRNA-like RNAs (milRNAs) recently identified in A. flavus had been found to be correlated with aflatoxin production conditions, suggesting that the milRNAs might play a role in the regulation of aflatoxin production. In this research, small RNAs were isolated from kernels of maize (resistant Mp719 and susceptible Va35) …
Suberin Biosynthesis And Deposition In The Wound-Healing Potato (Solanum Tuberosum L.) Tuber Model, Kathlyn Natalie Woolfson
Suberin Biosynthesis And Deposition In The Wound-Healing Potato (Solanum Tuberosum L.) Tuber Model, Kathlyn Natalie Woolfson
Electronic Thesis and Dissertation Repository
Suberin is a heteropolymer comprising a cell wall-bound poly(phenolic) domain (SPPD) covalently linked to a poly(aliphatic) domain (SPAD) that is deposited between the cell wall and plasma membrane. Potato tuber skin contains suberin to protect against water loss and microbial infection. Wounding triggers suberin biosynthesis in usually non-suberized tuber parenchyma, providing a model system to study suberin production. Spatial and temporal coordination of SPPD and SPAD-related metabolism are required for suberization, as the former is produced soon after wounding, and the latter is synthesized later into wound-healing. Many steps involved in suberin biosynthesis remain uncharacterized, and the mechanism(s) that regulate …
Immune Function And Metabolism Of Hibernating North American Bats With White-Nose Syndrome, Briana Nicole Anderson
Immune Function And Metabolism Of Hibernating North American Bats With White-Nose Syndrome, Briana Nicole Anderson
MSU Graduate Theses
White-nose syndrome (WNS) causes substantial mortality in certain species of hibernating North American bats. The responsible agent is Pseudogymnoascus destructans (Pd), a fungus which causes physiological complications such as increased arousals and energy depletion during the hibernation season. Tricolored bats (Perimyotis subflavus) and northern long-eared bats (Myotis septentrionalis) suffer extensive WNS mortality, while gray bats (Myotis grisescens) and big brown bats (Eptesicus fuscus) are infected, but mortality is rarely observed. It is hypothesized that there is a difference in immune responses and/or hibernation metabolism between these bat species, resulting in this …
A Systems Chemical Biology Approach For Dissecting Differential Molecular Mechanisms Of Action Of Clinical Kinase Inhibitors In Lung Cancer, Natalia Junqueira Sumi
A Systems Chemical Biology Approach For Dissecting Differential Molecular Mechanisms Of Action Of Clinical Kinase Inhibitors In Lung Cancer, Natalia Junqueira Sumi
USF Tampa Graduate Theses and Dissertations
Lung cancer is the second most common cancer type and is associated with high mortality rates. The survival rate for lung cancer patients has increased slowly in the last decade mainly as the result of the development of novel targeted and immune therapies. However, non-small cell lung cancer patients lacking known or actionable driver mutations and small cell lung cancer patients with recurrent disease are still in urgent need of new therapies. Drug repurposing is an efficient way to identify new therapies since it uses clinically relevant small molecule drugs. Determination of off-targets of small molecules is a novel approach …
A Multivariate Approach For An Improved Assessment Of Pre-Erythrocytic Stage Therapies Targeting Plasmodium Vivax And Plasmodium Falciparum, Alison E. Roth
A Multivariate Approach For An Improved Assessment Of Pre-Erythrocytic Stage Therapies Targeting Plasmodium Vivax And Plasmodium Falciparum, Alison E. Roth
USF Tampa Graduate Theses and Dissertations
The malaria pre-erythrocytic stages have been identified as an ideal therapeutic target, but complex in vitro models for Plasmodium vivax and Plasmodium falciparum lack the efficiency needed for rapid screening and evaluation of new vaccines and drugs, especially targeting the P. vivax hypnozoite. To address this challenge, we employed a multi-parameter approach using “omics’” to identify pre-erythrocytic targets and biomarkers, guide phenotypic therapeutic screening, and study parasite functionality with innovative bioassays using highcontent screening. Herein, we discuss three novel bioassays formatted in 384-well plate systems with utilization of commercially-available materials and application of high-content imaging for rapid bio-image analysis. To …
The Determinants Of Nucleosome Patterns And The Impact Of Phosphate Starvation On Nucleosome Patterns And Gene Expression In Rice, Qi Zhang
LSU Doctoral Dissertations
In eukaryotic cells, DNA is a large molecule that must be greatly condensed to fit within the nucleus. DNA is wrapped around histone proteins to form nucleosomes, which facilitate DNA condensation, but on the other hand, may limit DNA processes. Organisms must respond to environmental stress in order to survive, and one strategy is by remodeling nucleosomes to promote changes in DNA accessibility to alter gene expression. Studies have demonstrated a clear correlation between nucleosome dynamics and transcriptional change in some eukaryotes, however factors that affect nucleosome positioning in plants are largely unknown, and the correlation between nucleosome dynamics and …
Surveying Host Innate Immune Responses To Interferon Antagonist-Deficient Murine Coronaviruses, Aaron Brian Volk
Surveying Host Innate Immune Responses To Interferon Antagonist-Deficient Murine Coronaviruses, Aaron Brian Volk
Master's Theses
Two coronaviruses (CoVs)—severe acute respiratory syndrome (SARS) virus and Middle East respiratory syndrome (MERS) virus—have emerged in the 21st century from animal reservoirs into the human population, each causing an epidemic associated with significant disease and mortality. CoV epidemics are currently only controllable by rigorous public health measures; no targeted therapeutics or vaccines exist to treat or prevent any human CoV infection. One method of generating attenuated CoV strains to be studied as vaccine candidates involves specifically disrupting CoV-encoded interferon (IFN) antagonists, thereby rendering the virus vulnerable to host innate antiviral immunity. Deubiquitinating (DUB) activity encoded within CoV nonstructural protein …
Novel Computational Methods For Sequencing Data Analysis: Mapping, Query, And Classification, Xinan Liu
Novel Computational Methods For Sequencing Data Analysis: Mapping, Query, And Classification, Xinan Liu
Theses and Dissertations--Computer Science
Over the past decade, the evolution of next-generation sequencing technology has considerably advanced the genomics research. As a consequence, fast and accurate computational methods are needed for analyzing the large data in different applications. The research presented in this dissertation focuses on three areas: RNA-seq read mapping, large-scale data query, and metagenomics sequence classification.
A critical step of RNA-seq data analysis is to map the RNA-seq reads onto a reference genome. This dissertation presents a novel splice alignment tool, MapSplice3. It achieves high read alignment and base mapping yields and is able to detect splice junctions, gene fusions, and circular …