Browsing Biology by Title
Now showing items 257-276 of 599
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Fish feeding variability over space and time in natural and regulated boreal rivers
(University of Waterloo, 2016-09-20)Within the boreal region of Canada, river ecosystems are affected by naturally low flows in the summer months and hydropower operations, which can greatly influence the structure and function of river food webs. Few long-term ... -
From genomes to metagenomes: Development of a rapid-aligner for genome assembly and application of macroecological models to microbiology
(University of Waterloo, 2019-09-26)Since the development of the modern computer, many scientific fields have undergone paradigm shifts due to an increasing facility in data collection and analysis. Microbiology has been impacted by computational advances, ... -
Functional Analysis of Putative Adenosine Recycling Enzymes in Arabidopsis thaliana
(University of Waterloo, 2009-09-25)Adenosine (Ado) salvage is essential in plant development. The lack of Ado kinase activity (ADK) in Arabidopsis thaliana adk1 adk2 double mutants results in embryonic lethality; reduction of ADK expression causes a pleiotropic ... -
Functional characterization and bioinformatic analysis of glutamine synthetases of Ochrobactrum anthropi
(University of Waterloo, 2020-12-22)Glutamine synthetase (GS) is an essential enzyme required for the conversion of ammonium (NH4+) into glutamine. It is commonly classified into GSI, GSII, and GSIII based on molecular size, number of subunits, underlying ... -
Functional Characterization of Rainbow Trout (<em>Oncorhynchus mykiss</em>) Chemokine 2 (CK-2)
(University of Waterloo, 2006)Chemokines are cytokines with chemoattractant ability, and comprise one of the major groups of molecules in immune system. These are small, secreted proteins cause the migration of leukocytes to the sites of injury. ... -
Functional Characterization of the Origin Recognition Complex (ORC) in S. cerevisiae
(University of Waterloo, 2008-01-23)The origin recognition complex (Orc1-6) plays a fundamental role in the initiation of DNA replication by binding replication origins throughout the budding yeast cell cycle. ORC acts as a scaffold for the assembly of the ... -
Functional consequences of changing structure, dynamics, and free-energy landscapes of phosphoenolpyruvate carboxykinases
(University of Waterloo, 2020-09-21)The complex relationship between structure, dynamics, and function will afford insights into the operational details of enzymes. To understand, regulate, and create enzymes, this complex nature must be comprehensively ... -
The functional significance of the alternative first exons of the Arabidopsis thaliana APT1 gene
(University of Waterloo, 2009-09-30)In plants, adenine nucleotides are essential for nucleic acid synthesis, as cofactors for biochemical reactions, and as precursors for the biosynthesis of the phytohormone cytokinin. Adenine nucleotides, such as AMP, are ... -
Functional Study of a Protein (UnkG) in Pseudomonas putida UW4
(University of Waterloo, 2011-07-20)The role played by the protein UnkG from the plant growth-promoting bacterium Pseudomonas putida UW4 in the ability of the bacterium to facilitate plant growth was studied. Previous work showed that over-expressing UnkG ... -
A Functional Study of Major Histocompatibility Expression and Immune Function in Rainbow Trout, (Oncorhynchus mykiss)
(University of Waterloo, 2006)Major Histocompatibility Complex (MHC) receptors serve a critical role in self/non-self recognition through the presentation of peptide antigen to circulating T lymphocytes and are also believed to play a role in mate ... -
A Functional Study of the Major Histocompatibility Class I Antigen Presentation Pathway in Rainbow Trout (Oncorhynchus mykiss)
(University of Waterloo, 2014-01-09)Major Histocompatibility Complex (MHC) class I receptors are glycoproteins which play a critical role in anti-viral immunity by displaying foreign peptides to cytotoxic T cell lymphocytes. The loading of high affinity ... -
Gaits and Their Development in the Infraorder Pecora
(University of Waterloo, 1967-02)The gaits of twenty-eight species of the Infraorder Pecora are analyzed from motion picture sequences comprising over 45,000 frames. For each gait the percentage time spent on the various supporting legs during each stride ... -
Generational Effects of Bisphenol A on Growth and Stress Performance in Rainbow Trout
(University of Waterloo, 2014-06-25)The aquatic environment is severely impacted by xenobiotics that are released due to anthropogenic activities, threatening ecosystem health. Some of these contaminants accumulate in lipophilic fish tissues and are maternally ... -
The Genetic Analysis of Autophagy-Dependent Caspase Activation in Drosophila melanogaster
(University of Waterloo, 2009-10-23)During Drosophila melanogaster pupation, groups of undifferentiated adult cells proliferate and undergo regulated cell shape changes, while larval tissues are eliminated by programmed cell death (PCD). PCD is most commonly ... -
Genome analysis reveals unexpected absence of oxygen metabolic capacity in helminths
(University of Waterloo, 2022-07-06)Oxygen metabolism in parasitic helminths differs significantly from that of most aerobic eukaryotes, as these organisms must be able to switch between aerobic and anaerobic metabolisms depending on their life-cycle stage. ... -
A genomic study of the invasive red alga Bangia atropurpurea (Mertens ex Roth) C. Agardh
(University of Waterloo, 2022-04-13)The phylum Rhodophyta comprises the red algae, which are morphologically diverse organisms present in marine and freshwater environments. The red algae order, Bangiales, is an ancient lineage and molecular studies have ... -
The genus Solidago L. (Astereae, Asteraceae) in South America and related taxa in North America
(University of Waterloo, 2009-05-14)The goldenrod genus Solidago L. is one of the larger genera in the flowering plant family Asteraceae. The genus is primarily North American and was recently revised in Flora of North America. In contrast, Solidago in South ... -
Gibberellin Biosynthesis in Bradyrhizobium japonicum USDA110
(University of Waterloo, 2014-10-28)Biosynthesis of gibberellin (GA) by bacteria has been studied for nearly 50 years. Early on, bacterial culture extracts were analyzed for the presence of bioactive compounds, thought to be gibberellins. In the 1980s, ... -
Gold nanoparticles as dehydrogenase mimicking nanozymes for estradiol degradation
(Elsevier, 2019-09)Nanozyme catalysis has been mainly focused on a few chromogenic and fluorogenic substrates, while environmentally and biologically important compounds need to be tested to advance the field. In this work, we studied oxidation ... -
Growth and regulatory metabolism of cellulose-utilizing thermophilic Caldicellulosiruptor species
(University of Waterloo, 2015-05-19)Hydrogen biofuels have been proposed as an environmentally-friendly and renewable energy substitute for petroleum-based fossil fuels. One species of bacteria capable of degrading cellulosic materials and producing vast ...