Browsing Faculty of Natural Science by Title
Now showing items 1452-1471 of 2560
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Isolation and characterisation of leaf endophytic bacteria from weed plants for enhancing salinity stress tolerance in Brassica napus
(University of the Western Cape, 2020)In an ever changing environment, plants are constantly challenged by various abiotic stresses such as salinity, which limits global crop production. This directly affects food availability for the global population, which ... -
The isolation and characterisation of novel natural products from marine bacterial symbionts
(University of the Western Cape, 2015)Drug-resistant infections are a global health crisis and drastically hinder the treatment options to effectively combat disease. Today, natural products remain an important source of novel drug candidates. Micro-organisms, ... -
ISOLATION AND CHARACTERIZATION OF ANTIMICROBIAL COMPOUNDS FROM GALENIA AFRICANA
(University of the Western Cape, 2001)Galenia africona, commonly known as "kraalbos" or "geelbos" belonging to the family Aizoaceae, is a dominant plant throughout the Namaqualand area. It is an active invader and is especially abundant in disturbed areas ... -
Isolation and characterization of bacterial endophytes for growth promotion of Phaseolus vulgaris under salinity stress
(University of the Western Cape, 2020)As the global human population grows, so does the demand for faster food production rates. Owing to this, agricultural practices have had to expand and move into semi-arid and arid regions, too, where frequent irrigation ... -
Isolation and characterization of natural products from selected Rhus species
(University of Western Cape, 2020)Searsia is the more recent name for the genus (Rhus) that contains over 250 individual species of flowering plants in the family Anacardiaceae. Research conducted on Searsia extracts to date indicates a promising potential ... -
Isolation and Characterization of Natural Products from Siphonochilus aethiopicus
(University of the Western Cape, 2009)Plants have formed the basis of traditional medicinal systems that have been in existence for thousands of years. Traditional medicines play an important role in protecting, maintaining and restoring the health of people. ... -
Isolation and characterization of plant growth promoting endophytic bacteria from Eriocephalus africanus roots]
(University of the Western Cape, 2018)Endophytic bacteria are known to have an endosymbiotic relationship with plants and provide them with many beneficial properties. These bacteria stimulate plant hormones, provide protection from pathogens and increase ... -
Isolation and characterization of plant growth promoting endophytic bacteria from Medicago lupulina for enhanced drought tolerance in Maize
(University of the Western Cape, 2019)Maize is one of the major staple foods in many African nations however, this crop is sensitive to environmental stressors. Drought is a major environmental stressor affecting maize production. Due to global warming, drought ... -
Isolation and characterization of stem endophytic bacteria from weed plants for enhancing Vanadium tolerance in Brassica napus
(University of the Western Cape, 2019)Bacterial endophytes are able to improve the growth of their hosts through a number of different mechanisms such as nutrient uptake regulation, plant hormone production and regulation, siderophore production and phosphate ... -
The Isolation and Electrochemical Studies of Flavanoids from Galenia africana and Elytropapus rhinocerotis from the North Western Cape
(University of the Western Cape, 2010)In this study two medicinal plant species, namely Galenia africana and Elytropapus rhinocerotis, the former belonging to the family Aizoceae and the latter belonging to the family Asteraceae, have been investigated and ... -
Isolation and identification of PNP-A homologues from Xerophyta viscosa Baker
(University of the Western Cape, 2004)Maintenance of growth, development and normal physiological processes remains crucial for the survival of plants. Plant hormones are described as integrators of external signal and internal developmental process in plants. ... -
Isolation and Partial Characterization Serine Protease Inhibitors from Triticum aestivum cv' Witwol
(University of the Western Cape, 2001)Plant diseases and plant pests are major constraints to plant growth and development, resulting in severe crop losses annually. Plant pathogens can be a variety of things, living and non-living. Non-living pathogens exist ... -
Isolation and preliminary characterization of bacteriophages of thermophilic Bacillus and Geobacillus species
(University of the Western Cape, 2015)Thermophilic bacteriophages provide simple model systems for understanding biochemical and biological adaptation mechanisms at elevated temperatures. The essential objectives of this study were to characterise the ... -
Isolation, expression, purification and characterisation of a novel acetyl xylan esterase from streptomyces species ORS10
(University of the Western Cape, 2012)Lignocellulosic biomass represents an important renewable resource for biofuels production. Lignocellulosic biomass is comprised of cellulose, hemicellulose and lignin. Lignocellulosics are highly recalcitrant to enzymatic ... -
Isolation, identification and characterisation of novel actinobacteria from Zambian hot-springs
(2011)Actinomycetes are ubiquitous in many environments such as soil, activated sludge and water.Besides the genus Streptomyces, which has been extensively exploited, members of other genera including Micromonospora have been ... -
Isolation, identification and characterization of novel actinomycetes from Antarctic soil samples
(University of the Western Cape, 2008)Actinomycetes are Gram-positive bacteria that form filamentous branching hyphae with asexual spores. They occur in a variety of environments and are important industrially and pharmaceutically. The aims of this study were ... -
Isothermal and non-isothermal comparative study of Zn-sn system using real-time RBS
(2021)Solid-state reactions of bi-metallic systems can be driven or activated by various external stimuli like pressure, energetic photons, energetic charged particles or heat. For an example, high pressure torsion can be ... -
Isothermal and non-isothermal comparative study of zn-sn system using real-time rbs
(University of the Western Cape, 2021)Insight into the effects of isothermal and non-isothermal annealing on bi-metallic thin film is important for material synthesis and application in everyday use. The effects of isothermal annealing on bi-metallic thin ... -
Iterative helical real-space reconstruction of histone octamer tubular crystals and implications for the 30 nm chromatin fiber
(University of the Western Cape, 2006)This thesis investigated the helical structure of core histone octamers to discover interacting surfaces and their relevance to the compaction of nucleosome arrays into the chromating fiber. -
KernTune: self-tuning Linux kernel performance using support vector machines
(University of the Western Cape, 2006)Self-tuning has been an elusive goal for operating systems and is becoming a pressing issue for modern operating systems. Well-trained system administrators are able to tune an operating system to achieve better system ...