Browsing Department of Microbiology by Title
Now showing items 247-266 of 317
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Native Fusarium species from indigenous fynbos soils of the Western Cape
(Stellenbosch : Stellenbosch University, 2008-12)The genus Fusarium contains members that are phytopathogens of a number of agricultural commodities causing severe diseases such as wilts and rots. Fusarium species also secrete mycotoxins that have devastating effects ... -
NCR-sensitive gene expression and regulation of nitrogen interconversion by VID30 in Saccharomyces cerevisiae
(Stellenbosch : Stellenbosch University, 2002-03)ENGLISH ABSTRACT: Saccharomyces cerevisiae uses the nitrogenous compounds in its environment selectively. The basis of this phenomenon is the transcriptional regulation of genes whose products are required for nitrogen ... -
A new role for carnitine in yeasts
(Stellenbosch : Stellenbosch University, 2006-04)ENGLISH ABSTRACT: L-Carnitine (3-0H-4-N-trimethylaminobutanoic acid), also called vitamin Br, is required for the metabolism of fatty acids. Only one specific metabolic activity has been ascribed to L-carnitine in ... -
A note on the use of reduced transport fluid (RTF) for isolation of Neisseria gonorrhoeae
(Health & Medical Publishing Group, 1974)Swabs containing pus from urethral discharges obtained from 55 male patients attending venereal disease clinics were transported in Stuart's transport medium or RTF (reduced transport fluid) and then cultured on Thayer ... -
Novel Streptomycete antimicrobial compounds: activity against pathogens from domestic rainwater harvesting systems
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Due to increased urbanisation, frequent droughts and poor water sources in rural communities, the scarcity of water has become a major concern. Water is an essential part of life – in order to meet the ... -
The occurrence and infectivity of arbuscular mycorrhizal fungi in inoculated and uninoculated rhizosphere soils of two-year-old commercial grapevines
(South African Society for Enology and Viticulture, 2005)Arbuscular mycorrhizal (AM) fungal populations present in the rhizosphere of vine roots in the vineyards of a commercial farm in the Stellenbosch Region were investigated using microscopic analyses. AM root colonisation ... -
Optimization of automated ribosomal intergenic spacer analysis for the estimation of microbial diversity in fynbos soil
(Academy of Science of South Africa -- ASSAF, 2010-08)Automated ribosomal intergenic spacer analysis (ARISA) has become a commonly used molecular technique for the study of microbial populations in environmental samples. The reproducibility and accuracy of ARISA, with and ... -
Optimization of fermentation processes for the production of indigenous fruit wines (Marula)
(Stellenbosch : Stellenbosch University, 2001-03)ENGLISH ABSTRACT: The importance of indigenous fruit wines is not well researched and documented. There is a need to develop and exploit these valuable food resources through improved production practices, storage, ... -
Optimization of the conversion of lignocellulosic agricultural by-products to bioethanol using different enzyme cocktails and recombinant yeast strains
(Stellenbosch : Stellenbosch University, 2011-03)ENGLISH ABSTRACT: The need to mitigate the twin crises of peak oil and climate change has driven a headlong rush to biofuels. This study was aimed at the development of a process to efficiently convert steam explosion ... -
Optimized production of bacteriocin ST11BR, generated by Lactobacillus paracasei subsp. paracasei ST11BR isolated from traditional South African beer
(Academy of Science for South Africa, 2005)Little is known about the production of antimicrobial peptides (bacteriocins) by lactic acid bacteria in traditional South African beer and their inhibition of food spoilage or pathogenic bacteria. In this paper, we report ... -
The osmotic stress response of basidiomycetous yeasts
(Stellenbosch : Stellenbosch University, 2007-12)ENGLISH ABSTRACT: Basidiomycetous yeasts are found in a wide range of geographical areas ranging from tropical forests to desert regions. These yeasts are associated with different habitats such as soil, decaying vegetative ... -
Pharmaceutical and personal care products (PPCPs) as endocrine disrupting contaminants (EDCs) in South African surface waters
(South African Water Research Commission, 2017-10)Globally, water resources are under constant threat of being polluted by a diverse range of man-made chemicals, and South Africa is no exception. These contaminants can have detrimental effects on both human and wildlife ... -
Phylogenetic analysis of leuconostoc and lactobacillus species isolated from sugarcane processing streams
(Wiley Open Access, 2020)High levels of gums such as dextran, produced by Leuconostoc and Lactobacillus spp., have a severe impact on factory throughput and sugar quality. This study aimed to determine the phylogenetic relationships between ... -
A phylogenetic revision of Penicillium sect. Exilicaulis, including nine new species from fynbos in South Africa
(International Mycological Association, 2016-06-01)A survey of the fynbos biome in South Africa resulted in the isolation of 61 Penicillium species from Protea repens infructescences, air, and soil samples. Fourteen of these belong to Penicillium sect. Exilicaulis and ... -
Physical interactions of filamentous fungal spores and unicellular fungi
(Stellenbosch : University of Stellenbosch, 2006-04)ENGLISH ABSTRACT: It is known that many hyphomycetous fungi are dispersed by wind, water and insects. However, very little is known about how these fungi may differ from each other regarding their ability to be disseminated ... -
Physiological effects of indigenous arbuscular mycorrhizal associations on the sclerophyll Agathosma betulina (Berg.) Pillans
(Stellenbosch : University of Stellenbosch, 2011-10)ENGLISH ABSTRACT: The Mountain Fynbos biome, a division of the Cape Floristic Region (CFR), is home to round-leafed Buchu [Agathosma betulina (Berg.) Pillans], one of South Africa’s best-known endangered herbal medicinal ... -
Plant growth-promoting properties of fynbos rhizobia and their diversity
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Soil has a high diversity of microorganisms which differs from the bulk to the rhizosphere soil. Bulk soil often has a higher microbial diversity than the rhizosphere, whereas the rhizosphere has a higher ... -
The polyphasic taxonomy of penicillium and talaromyces spp. isolated from the diverse Fynbos biome
(Stellenbosch : Stellenbosch University, 2012-12)Please refer to full text for abstract. -
Population structure and biofilm formation of Pseudomonas aeruginosa isolated from patients with severe burn wounds at Tygerberg Hospital
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH ABSTRACT : Pseudomonas aeruginosa is a common opportunistic pathogen which is responsible for more than 11% of nosocomial infections including urinary tract infections (UTI’s), bacteraemia, pneumonia and soft ... -
The presence of faecal pollution, and potential plant pathogens associated with onion production, in the Lower Vaal River
(Stellenbosch : Stellenbosch University, 2015-03)ENGLISH ABSTRACT: Industrial and sewage pollution of the Vaal River pose a threat to sustainable agriculture along the Lower Vaal River in the Northern Cape of South Africa. In this region, the Vaal River is used to irrigate ...
