Browsing Philosophiae Doctor - PhD (Biotechnology) by Title
Now showing items 65-84 of 100
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Mitigation of salinity stress using exogenously applied molybdenum in sorghum bicolor
(University of the Western Cape, 2022)The agricultural sector is the main producer of food throughout the world. However, the constant changes in environmental conditions, such as extreme weather, droughts, and salinity have impacted this sector negatively ... -
Modulation of soybean and maize antioxidant activities by Caffeic acid and nitric oxide under salt stress
(University of the Western Cape, 2012)This study explores the roles of exogenously applied nitric oxide, exogenously applied caffeic acid and salt stress on the ontioxidant system in cereal (exemplified by maize) and legume (using soybean as an example) plants ... -
Modulation of soybean and maize antioxidant activities by caffeic acid and nitric oxide under salt stress
(University of Western Cape, 2012) -
Molecular analysis of red colouration in 'Bon Rouge' pear (Pyrus communis L.)
(University of the Western Cape, 2018)The 'Bon Rouge' pear cultivar was developed from a bud mutation on a 'Bon Chretien' pear tree. The latter is characterised by green fruit skin and leaves, while 'Bon Rouge' is characterised by red leaves and red fruit skin ... -
Molecular Characterisation of the Brassinosteroid, Phytosulfokine and cGMP-dependent Responses in Arabidopsis thaliana
(University of the Western Cape, 2010)In this thesis, we have firstly cloned and expressed the domains that harbours the putative catalytic GC domain in these receptor molecules and demonstrate that these molecules can convert GTP to cGMP in vitro. Secondly, ... -
The molecular characterization of trichoplusia ni single nucleocapsid nucleopolyhedrovirus: a study on early regulatory features
(University of the Western Cape, 2003)With the development of biological insecticides, many research efforts have been made in baculoviruses to investigate fundamental molecular aspects of these viruses, such as the function and regulation of genes, genome ... -
Molecular detection and characterisation of RNA viruses of honeybees
(University of the Western Cape, 2009)Propagation methods for honeybee viruses have not changed since these viruses were discovered. There are no suitable cell lines or cell culture techniques available for honeybee viruses. Honeybee viruses have to be manually ... -
Molecular detection and characterisation of RNA viruses of honeybees
(University of the Western Cape, 2009)Honeybees have evolved through the centuries to inhabit most parts of the world except for the extreme Polar Regions. These insects have also been susceptible to pathogens and disease which has always been part of the ... -
Molecular detection and genetic manipulation of the Black Queen Cell Virus
(University of the Western Cape, 2002)The South African isolate of the Black Queen-Cell Virus (BQCV), a honeybee virus, was previously found to have an 8550 nucleotide genome excluding the poly(A) tail. Its genome contained two ORFs, a 5'-proximal ORF encoding ... -
Molecular detection and study of Campylobacter and related microorganisms
(University of the Western Cape, 2010)Species of Campylobacter, Arcobacter and Helicobacter have been associated with various diseases in humans and animals; and chickens have been identified as a reservoir of these microorganisms. Two published techniques and ... -
A molecular investigation of the prevalence of suspected periodontopathogens and their association with preterm birth
(University of the Western Cape, 2010)More than 20 million infants in the world (15.5 % of all births) are born with low birth weight. Ninety-five % of them are in developing countries. Oral colonization of Gramnegative anaerobes has been implicated as a risk ... -
New genetic tools to engineer starch production in crops
(University of the Western Cape, 2014)Starch is a major carbohydrate reserve in many plants, providing energy during heterotrophic growth and it is contained in large amounts in staple foods such as potatoes, wheat, maize, rice, sorghum and cassava. Apart from ... -
Pharmacogenomics of solute carrier transporter genes in the Xhosa population
(University of the Western Cape, 2014)Solute carrier transporters belonging to the major facilitator family of membrane transporter are increasingly being recognized as a possible mechanism to explain inter-individual variation in drug efficacy and response. ... -
Plant natriuretic peptides - elucidation of the mechanisms of action
(University of the Western Cape, 2009)Several lines of cellular and physiological evidence have suggested the presence of a novel class of systemically mobile plant molecules that are recognized by antibodies generated against vertebrate atrial natriuretic ... -
Population structure and demographics in Nigerian populations utilizing Y-chromosome markers
(University of the Western Cape, 2014)Nigeria is peopled by ethnically and linguistically diverse populations of which little were known until the last few millennial. The absence of major natural geographical barrier increases the possibility of the populations ... -
A proteomic analysis of drought and salt stress responsive proteins of different sorghum varieties
(University of the Western Cape, 2009)This study reports on a proteomic analysis of sorghum proteomes in response to salt and hyperosmotic stresses. Two-dimensional gel electrophoresis (2DE) in combination with mass spectrometry (MS) was used to separate, ... -
A proteomic analysis of drought and salt stress responsive proteins of different sorghum varieties
(University of the Western Cape, 2009)Sorghum (Sorghum bicolorï, a drought tolerant cereal crop, is not only an important food source in the semi arid/arid regions but also a potential model for studying and gaining a better understanding of the molecular ... -
Proteomic and functional characterisation of biofilm formation in Xylophilus ampelinus
(University of the Western Cape, 2019)Xylophilus ampelinus, the causal agent of bacterial blight of grapevine, inhabits the vascular tissues of infected plants where the cells appear to form assemblages resembling biofilms. Bacterial blight of grapevine ... -
Proteomic and metabolomic characterisation of novel wine yeasts: towards the evaluation and improvements of their ability to produce aromatic sauvignon blanc wines
(University of the Western Cape, 2017)Wine yeast Saccharomyces cerevisiae and wild yeasts e.g. Torulaspora delbrueckii forms an integral part of wine production by converting relatively 'neutral' flavoured Sauvignon blanc grape must into varietal aromatic ... -
Public participation as governance the role of catchment forums in water governance Mluleki Matiwane
(2012)Catchment forums are concerned groups of people that come together on a voluntary basis in a specific area. They share the same goal and purpose to achieve - sustainable water resources management. These Catchment Forums ...