Browsing Biology by Title
Now showing items 1-20 of 596
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1-AMINOCYCLOPROPANE-1-CARBOXYLATE (ACC) DEAMINASE GENES IN RHIZOBIA: ISOLATION AND CHARACTERIZATION
(University of Waterloo, 2007-05-14)A collection of 233 putative Rhizobia strains from 30 different sites across Saskatchewan, Canada was assayed for ACC deaminase activity, with 27 of the strains displaying activity. When all 27 strains were characterized ... -
A 30-Year Study of Impacts, Recovery, and Development of Critical Effect Sizes for Endocrine Disruption in White Sucker (Catostomus commersonii) Exposed to Bleached-Kraft Pulp Mill Effluent at Jackfish Bay, Ontario, Canada
(Frontiers, 2021-04-22)Jackfish Bay is an isolated bay on the north shore of Lake Superior, Canada that has received effluent from a large bleached-kraft pulp mill since the 1940s. Studies conducted in the late 1980s found evidence of reductions ... -
Age Determination and Growth of Rainbow Darter (Etheostoma caeruleum) in the Grand River, Ontario
(University of Waterloo, 2016-05-31)The accurate determination and validation of age is an important tool in fisheries management. Age profiles allow insight into population dynamics, mortality rates and growth rates, which are important factors in many ... -
Aging affects circadian clock and metabolism and modulates timing of medication
(Elsevier, 2021-04)Aging is associated with impairments in the circadian rhythms, and with energy deregulation that affects multiple metabolic pathways. The goal of this study is to unravel the complex interactions among aging, metabolism, ... -
Algal priming mediates the effects of light and nutrients on organic matter processing: insights from artificial and natural streams
(University of Waterloo, 2023-10-31)Environmental factors such as light and nutrients may play important roles in determining detrital decomposition through their effects on primary production. Thus, human activities that alter the availabilities of light ... -
AlignDx: Enabling Automated, Cloud-Based Workflows for Streamlined Bioinformatic-Focused Pathogen Surveillance
(University of Waterloo, 2023-07-13)The rising trends in infectious disease burden, alongside the recent COVID-19 pandemic, underline the need for effective public health disease mitigation strategies like pathogen surveillance. Improvements to surveillance ... -
Alternative splicing of Lymnaea Cav3 and NALCN ion channel genes serves to alter biophysical properties, membrane expression, and ion selectivity
(University of Waterloo, 2012-08-30)Evidence is presented that Lymnaea contains homologues for mammalian Cav3 and NALCN 4-domain ion channels, which retain key amino acid sequence motifs that differentiate these channels from other 4-domain types. Molecular ... -
Amelioration of Plant Drought Stress by Plant Growth-Promoting Bacteria
(University of Waterloo, 2017-04-28)Plant growth-promoting bacteria (PGPB) that contain the enzyme (1-aminocyclopropane-1-carboxylate) ACC deaminase protect a variety of plants against damage from various biotic and abiotic stresses. Here, the ability of ... -
Ammonia-oxidizing archaea and complete ammonia-oxidizing bacteria in a municipal wastewater treatment plant
(University of Waterloo, 2018-09-25)High levels of ammonia in aquatic environments can lead to eutrophication, oxygen depletion, and toxicity to aquatic animals. An important goal of municipal wastewater treatment plants (WWTPs) is to remove ammonia from ... -
Ammonia-oxidizing archaea in engineered biofiltration systems
(University of Waterloo, 2016-12-21)Ammonia is a nitrogenous metabolic waste product that is produced by all animal life. High concentrations of ammonia are toxic to animals and may result in algal blooms and eutrophication in aquatic environments. To prevent ... -
Analysis of Cyanobacteria and its Abundance in the Turkey Lakes Watershed using Molecular Techniques
(University of Waterloo, 2023-12-21)Toxic cyanobacterial blooms continue to pose a threat to the quality and safety of drinking water globally by producing toxins and forming dense surface blooms. Forested watersheds naturally provide high quality drinking ... -
Analysis of heat shock protein 30 gene expression and function in Xenopus laevis A6 kidney epithelial cells
(University of Waterloo, 2014-04-30)Heat shock proteins (HSPs) are molecular chaperones that assist in protein synthesis, folding and degradation and prevent stress-induced protein aggregation. The present study examined the pattern of accumulation of HSP30 ... -
Analysis of heat shock-, sodium arsenite- and proteasome inhibitor-induced heat shock protein gene expression in Xenopus laevis
(University of Waterloo, 2009-05-01)Previous studies have focused on the effect of individual stressors on hsp gene expression in eukaryotic organisms. In the present study, I examined the effect of concurrent low doses of sodium arsenite and mild heat shock ... -
Analysis of Immune System and Stress Parameters of Oncorhynchus mykiss in Response to Juvenile Thermal Preconditioning or Thermal-Based Parental Selection
(University of Waterloo, 2021-09-20)Higher water temperatures and pathogens are both significant factors that negatively affect the welfare of teleost fish. In aquaculture, compared to natural populations, these problems are especially exacerbated, as the ... -
Analysis of premature loss of the extraembryonic Amnioserosa in Drosophila morphogenetic mutants
(University of Waterloo, 2009-01-23)During Drosophila embryogenesis, an extra-embryonic tissue, known as the amnioserosa (AS), is required for the morphogenetic processes of germ band retraction (GBR) and dorsal closure (DC). Being extra-embryonic, the AS ... -
Analysis of Programmed Cell Death in the Amnioserosa, an Extra-embryonic Epithelium in Drosophila melanogaster
(University of Waterloo, 2008-01-24)The amnioserosa (AS) is an epithelium that plays major roles in two crucial morphogenetic processes during Drosophila embryogenesis: Germ Band Retraction (GBR) and Dorsal Closure (DC). The AS is extraembryonic and as such, ... -
Analysis of Temporal Changes in Estrogenic Compounds Released from Municipal Wastewater Treatment Plants
(University of Waterloo, 2019-09-26)Wastewater treatment plants (WWTPs) are traditionally designed to target the removal of contaminants such as total suspended solids, phosphorous, biological oxygen demand, and ammonia. Recent changes to the Federal ... -
Analysis of the structural determinants for voltage-dependent G protein modulation of synaptic Cav2 channels
(University of Waterloo, 2008-08-28)Specialized voltage-gated calcium channels in the Cav2 channel class (such as Cav2.2, N-type) mediate neurotransmitter release from presynaptic nerve terminals. Cav2.2 channels are exquisitely sensitive to inhibition by ... -
Analytical Approach for Modeling of Multi Well CO2 Injection
(Elsevier, 2016-11-14)Disposal of carbon dioxide (CO2) into underground geological formations is considered a viable strategy for the mitigation of global warming. It aims to reduce greenhouse gases emitted from point sources such as power ... -
Antimicrobial Peptide Daptomycin and its Inhibition by Pulmonary Surfactant: Biophysical Studies using Model Membrane Systems
(University of Waterloo, 2017-04-25)Daptomycin is a lipopeptide antibiotic that is clinically used to treat severe infections caused by Gram-positive bacteria. It is highly potent against resistant strains of bacteria such as methicillin-resistant Staphylococcus ...