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Now showing items 31-40 of 72
Determination of the quality of environmental water using GC-MS based faecal sterol analysis
(North-West University, 2014)
Faecal indicator bacteria have traditionally been used in the detection of faecal pollution in water, but due to concerns about the lack of reliability of these indicators, alternative methods have been developed. One of ...
DNA barcoding of different earthworms' species and their response to ecotoxicological testing
(North-West University, 2015)
The ecotoxicological literature reveals that countless researchers worldwide rely upon informally identified commercial earthworm stocks for laboratory bioassays. The primary aim of this study was to investigate laboratory ...
The role of gut microbes on the efficacy of Bt maize against lepidopteran stem borers
(North-West University, 2015)
The evolution of pest resistance to Cry proteins threatens the long-term use of Bt crops. Busseola fusca developed resistance to Bt maize in South Africa but the mechanism of resistance is not well understood. According ...
Phenotypic and biochemical characterisation of the causal agent of bacterial leaf streak of maize
(North-West University, 2015)
Maize is the staple food for a majority of people in Southern Africa, but plant diseases are responsible for at least 10% of crop production losses. Bacterial leaf streak (BLS) of maize was first reported in South Africa ...
Characterization of enterococci isolates from water sources in the North West Province
(North-West University (South Africa), 2016)
Enterococci are a diverse and complex group of ubiquitous bacteria that can survive extreme conditions. Despite constituting a large portion of the gastrointestinal tract in warm blooded animals and humans, they are ...
Investigating the presence of transgenic crop constructs in DNA of organisms of aquatic ecosystems
(North-West University (South Africa), 2019)
Genetically modified Bt crops, which produce proteins toxic to certain agricultural pests, have been cultivated for two decades. In that time, several hundred papers examining their interaction with terrestrial ecosystems ...
Bacteroides species as indicators of faecal pollution in environmental water sources : a literature review
(North-West University (South Africa), 2019)
Faecal pollution of water has long been an issue of great concern due to the potential health risks associated with faeces. A lack of understanding the implications of sewage contamination in water combined with inadequate ...
Molecular profiling of microbial population dynamics in environmental water
(North-West University, 2015)
Increasing socio-economic growth and development of South Africa’s freshwater systems require continuous augmentation of water sources to meet the growing water requirements of communities and industries. Anthropogenic ...
Characterization of Clostridium spp. isolated from selected surface water systems and aquatic sediment
(North-West University (South Africa), Potchefstroom Campus, 2017)
Clostridium are ubiquitous in nature and common inhabitants of the gastrointestinal track of humans and animals. Some are pathogenic or toxin producers. These pathogenic Clostridium species can be introduced into surface ...
Influence of vermicompost application on rhizospheric microbial communities and Arbuscular mycorrhizal fungal colonisation of BT and non-BT maize in agricultural soil
(North-West University, Potchefstroom Campus, 2018)
Increasing crop production to ensure future food security while reducing environmental pressure on agro-ecosystems requires improved nutrient and water use efficiency. The soil microbial community directly and/or indirectly ...