Browsing Biology by Title
Now showing items 495-514 of 599
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The Role of Glucocorticoid Receptor Signaling in Zebrafish Development
(University of Waterloo, 2013-01-28)These studies present a series of novel roles for glucocorticoid signaling in the developing zebrafish embryo. The best-characterized roles of cortisol, the primary circulating corticosteroid in teleost fish, are known to ... -
The role of hindsight in the transient stem cell niche of the Drosophila melanogaster larval midgut
(University of Waterloo, 2018-04-30)The composition of the larval Drosophila midgut includes cells known as adult midgut precursors (AMPs) that represent the founder cells for the adult midgut. During the first and second larval instar stages, AMPs are ... -
The role of hindsight in transcriptional regulation during Drosophila melanogaster development
(University of Waterloo, 2014-09-16)In Drosophila melanogaster, hindsight (hnt) encodes a putative Zinc-finger transcription factor that is expressed in a highly complex pattern during development. Despite an apparent wealth of information regarding the ... -
Role of PINCH during early Xenopus embryogenesis
(University of Waterloo, 2012-08-31)In the Xenopus embryo, cell rearrangements during early development require the dynamic modulation of adhesion. Cells primarily use the integrin family of transmembrane receptors for attachment to and interpretation of the ... -
The role of social preferences in the organization of a gregarious mammal colony
(University of Waterloo, 2022-12-02)Social preferences are often demonstrated to exist in “intelligent”, long-lived species, such as cetaceans and primates, where individuals have the opportunity to form relationships with conspecifics through repeated ... -
The role of sodium and calcium permeable T-type channels in generating pacemaking currents in invertebrates
(University of Waterloo, 2016-09-27)T-type calcium channels (Cav3) play a key role in generating rhythmic action potentials in excitable cells such as the heart pacemaker and sleep-wake cycles in the thalamus. T-type channels are low voltage-activated ... -
The role of submersed macrophytes in river eutrophication and biogeochemical nutrient cycling
(University of Waterloo, 2012-09-28)The goal of this work is to contribute to the understanding eutrophication in large rivers with a detailed study of the Grand River, an impacted river in highly agricultural and urbanized Southern Ontario. It focuses on ... -
The Role of Wastewater Testing for SARS-CoV-2 Surveillance
(Ontario COVID-19 Science Advisory Table, 2021-08-26)Wastewater testing for SARS-CoV-2 is relatively new; however, it builds on existing public health surveillance infrastructure. There is a limited but growing evidence base for its use, despite notable interpretation ... -
The Role of Wetland Pond Permanence in the Assembly of Biological Communities in the Prairie Potholes of Alberta
(University of Waterloo, 2020-05-06)Wetlands in the Prairie Pothole Region (PPR) support numerous biological communities, and the composition of these communities depends on the length of time ponded water is present (i.e., hydroperiod or permanence class). ... -
The Roles of Conserved Dbf4 Motifs in DNA Replication and Checkpoint Responses in Saccharomyces cerevisiae
(University of Waterloo, 2010-01-18)The Dbf4 protein is involved in the initiation of DNA replication, in complex with Cdc7 kinase, and also plays a role in the intra-S-phase checkpoint response via an interaction with Rad53 in Saccharomyces cerevisiae. The ... -
Roost Selection and Mass Variation Patterns of Temperate Bats in Eastern Canada
(University of Waterloo, 2021-08-23)Animals are expected to adjust their resource selection and behavioural patterns to improve fitness outcomes, such as fecundity or offspring survival. For long-lived hibernators, decisions made in each annual cycle may ... -
Salt Mass Balance Study and Plant Physiological Responses for an Enhanced Salt Phytoremediation System
(University of Waterloo, 2011-07-11)Salinity is one of the most severe environmental factors that limits global crop yield. Enhanced phytoremediation using plant growth promoting rhizobacteria (PGPR) has proven to be an effective and environmentally responsible ... -
Seasonal and environmental effects on physiological tolerances and gill adaptations of imperilled Eastern Sand Darter (Ammocrypta pellucida)
(University of Waterloo, 2024-02-15)In the absence of accurate biological information, conservation and recovery strategies carry the risk of failing to meet their objectives. Understanding species-specific physiological tolerances is important for several ... -
Seedlings of Temperate Tree Species Show Plastic Responses to Water Deficit and Heat Stress, But They Do Not Prevent Decline in Growth
(University of Waterloo, 2022-10-03)Species response to climate change is difficult to predict because warming involves the interaction of multiple stressors whose effects are simultaneous and therefore difficult to disentangle. To address this gap, I studied ... -
Sequence Analysis of the Bacterial Protein Elongation Factor P
(University of Waterloo, 2008-01-24)In 1975, Elongation Factor P (EF-P) protein was first discovered in the bacterium Escherichia coli. EF-P is believed to facilitate the translation of proteins by stimulating peptide bond synthesis for a number of different ... -
Sequence analysis of the genome of the plant growth-promoting bacterium Pseudomonas putida UW4
(University of Waterloo, 2012-07-20)The plant growth-promoting bacterium (PGPB) Pseudomonas putida UW4, previously isolated from the rhizosphere of common reeds growing on the campus of University of Waterloo, promotes plant growth in the presence of different ... -
Serum IgM, MH class IIβ genotype and respiratory burst activity do not differ between rainbow trout families displaying resistance or susceptibility to the coldwater pathogen, Flavobacterium psychrophilum
(Elsevier, 2018-01-20)Flavobacterium psychrophilum, the causative agent of bacterial coldwater disease (BCWD) is a significant threat to global aquaculture. True to its name, BCWD tends to occur at temperatures between 8 and 12°C and presents ... -
Sex differences in solute and water handling in the human kidney: Modeling and functional implications
(Elsevier, 2021-06)The kidneys maintain homeostasis by controlling the amount of water and electrolytes in the blood. That function is accomplished by the nephrons, which transform glomerular filtrate into urine by a transport process mediated ... -
Significance of Methylthioadenosine Metabolism to Plant Growth and Development
(University of Waterloo, 2012-01-24)Arabidopsis thaliana contains two genes annotated as methylthioadenosine nucleosidases (MTN): MTN1, At4g38800 and MTN2, At4g34840. This enzyme activity hydrolyzes the methylthioadenosine (MTA) produced by nicotianamine ... -
Similar hibernation physiology in bats across broad geographic ranges
(Springer, 2021-08-23)Species with broad geographic ranges may experience varied environmental conditions throughout their range leading to local adaptation. Variation among populations reflects potential adaptability or plasticity, with ...