Browsing Ph.D. Biology by Title
Now showing items 1-20 of 37
-
Adenovirus-based exogenous gene expression in mammalian cells
(St. Catharines, Ont. : Brock University, Dept. of Biological Sciences, 2010., 2010-03-10)Adenoviruses have been used as a model system for understanding gene expression, DNA replication, gene delivery and other molecular biological phenomenon. In this project, adenovirus was used as a model to study exogenous ... -
Aspects of spatial and habitat ecology of multiple Anopheles species (Diptera: Culicidae): malaria vectors in the highlands and foothills of Ecuador
(2012-07-30)The resurgence of malaria in highland regions of Africa, Oceania and recently in South America underlines the importance of the study of the ecology of highland mosquito vectors of malaria. Since the incidence of malaria ... -
Aspergillus flavus infections in Galleria mellonella : a pathogen-host model system for the study of emerging diseases
(Brock University, 2007-05-28)To study emerging diseases, I employed a model pathogen-host system involving infections of insect larvae with the opportunistic fungus Aspergillus flavus, providing insight into three mechanisms ofpathogen evolution ... -
Astringency and other oral sensations : biological sources of individual variation and association with food and beverage behaviour
(Brock University, 2011-10-14)Orosensory perception strongly influences liking and consumption of foods and beverages. This thesis examines the influence of biological sources of individual variation on the perception of ... -
Behaviour and life history of a large carpenter bee (Xylocopa virginica) in the northern extent of its range
(Brock University, 2008-05-28)Large carpenter bees (Hymenoptera: Apidae: Xylocopa) have traditionally been thought of as exhibiting solitary or occasionally communal colony social organization. However, studies have demonstrated more complex fonns ... -
Cell wall degrading enzymes and interaction between Trichoderma Aggressivum and Agaricus Bisporus
(Brock University, 2010-10-26)Agaricus bisporus is the most commonly cultivated mushroom in North America and has a great economic value. Green mould is a serious disease of A. bisporus and causes major reductions in mushroom ... -
Cell-selective modulation of the neuromuscular system in Drosophila
The capacity for all living cells to sense and interact with their environment is a necessity for life. In highly evolved, eukaryotic species, like humans, signalling mechanisms are necessary to regulate the function and ... -
Cellular Mechanisms of Resveratrol's Interaction with Mitochondrial Reactive Oxygen Species Metabolism
(Brock University, 2013-05-14)Resveratrol, a polyphenol found naturally in red wines, has attracted great interest in both the scientific community and the general public for its reported ability to protect against many of the diseases facing Western ... -
Characterisation and optimisation of the flavour of health-promoting, plantderived bitterants in functional beverages.
(2012-07-30)Flavour is a combination of taste, odour, and chemesthetic sensations. Close associations exist between these sensory modalities, and thus, the overall flavour of a food or beverage product can change when the intensity ... -
Competing demands for a complex system : photosystem II repair, photoprotection and quantum yield
(2012-04-04)Photosynthesis in general is a key biological process on Earth and Photo system II (PSII) is an important component of this process. PSII is the only enzyme capable of oxidizing water and is largely responsible for the ... -
Cryptic species status of Anopheles (Diptera: Culicidae) mosquitoes in Canada using a multidisciplinary approach
(2012-04-04)Many species of Anopheles mosquitoes (Diptera: Culicidae) are now recognized as species complexes whose members are often indistinguishable morphologically but identifiable based on ecological, genetic, or behavioural ... -
Defence of Agaricus bisporus against toxic secondary metabolites from Trichoderma aggressivum.
(Brock University, 2013-09-12)Trichoderma spp are effective competitors against other fungi because they are mycoparasitic and produce hydrolytic enzymes and secondary metabolites that inhibit the growth of their competitors. Inhibitory compounds ... -
Delineation of within-site terroir effects using soil and vine water measurement. Investigation of Cabernet Franc
(Brock University, 2009-01-28). The influence of vine water status was studied in commercial vineyard blocks of Vilis vinifera L. cv. Cabernet Franc in Niagara Peninsula, Ontario from 2005 to 2007. Vine performance, fruit composition and vine size ... -
Delineation of within-site terroir effects using soil and vine water measurements in Riesling vineyards within the Niagara Peninsula
(2012-04-04)The major focus of this dissertation was to explain terroir effects that impact wine varietal character and to elucidate potential determinants of terroir by testing vine water status (VWS) as the major factor of the ... -
Development of a bacteriophage-based biopesticide for fire blight
(Brock University, 2007-05-28)Fire blight is an economically important disease of apples and pears that is caused by the bacterium Erwinia amylovora. Control of the disease depends on limiting primaly blosson1 infection in the spring, and rapidly ... -
The efficacy of anti-predator behaviour in the wood fog tadpole (Rana sylvatica) /
(Brock University, 2007-06-04)Activity has been suggested as an important behaviour that is tightly linked with predator avoidance in tadpoles. In this thesis I examine predator-prey relationships using wood frog tadpoles {Rana sylvaticd) as prey and ... -
Elucidation of odour-potent compounds and sensory profiles of Vidal blanc and Riesling icewines from the Niagara Peninsula : effect of harvest date and crop level
(Brock University, 2011-10-14)I t was hypothesized that the freeze/thaw cycles endured by icewine grapes would change their chemical composition, resulting in unique chemical fingerprint and sensory properties, and would be affected by harvest ... -
Erwinia amylovora bacteriophage resistance
(2012-04-04)It has been proposed that phages can be used commercially as a biopesticide for the control of fire blight caused by the phytopathogen Erwinia amylovora. The aim of these studies was to investigate two common bacterial ... -
Etiology and Management of Grape Sour Rot
Sour rot is characterized by increased volatile acidity (VA) in ripe grapes. VA is associated with spoilage organisms and wineries may reject grape crops based on their concentration of acetic acid. Our research associated ... -
Evolutionary Origin and Maintenance of Sociality in the Small Carpenter Bees
(2012-07-31)Many arthropods exhibit behaviours precursory to social life, including adult longevity, parental care, nest loyalty and mutual tolerance, yet there are few examples of social behaviour in this phylum. The small carpenter ...