SUNScholar
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Faculty of AgriSciences
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Department of Genetics
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Now showing items 1-20 of 141

2013-06-30 The effects of the synthetic strigolactone GR24 on Arabidopsis thaliana callus culture

Mdodana, Ntombizanele Thobela (Stellenbosch : Stellenbosch University, 2012-12)

ENGLISH ABSTRACT: Plant growth promoting substances (PGPS) are emerging as useful tools in the investigation of important plant growth traits. Two PGPS, smoke-water derived from burning plant material and a synthetic ...
2013-12-31 Identification of growth related quantitative Trait Loci within the abalone using comparative microsatellite bulked segregant analysis

Slabbert, Ruhan (Stellenbosch : University of Stellenbosch, 2010-12)

ENGLISH ABSTRACT: The South African abalone, Haliotis midae, is a commercially valuable mollusc and is mostly exported to the Far East. Genetics research on H. midae has increased substantially since a genetic improvement ...
2013-12-31 Optimization of gene transfer in Haliotis midae by means of polyplex mediation

Sandenbergh, Lise (Stellenbosch : University of Stellenbosch, 2010-12)

ENGLISH ABSTRACT: Haliotis midae is the most important aquaculture species in South Africa, with abalone farming contributing 80% of the Rand value of the aquaculture industry. Although genetic research has benefited the ...
2025-12-31 Characterisation of the promoter region of the SLC40A1 gene implicated in iron metabolism

Vervalle, Jessica (Stellenbosch : University of Stellenbosch, 2010-12)

ENGLISH ABSTRACT: Oesophageal cancer (OC) is a disease characterised by development of malignant tumours in the cell lining of the oesophagus. The disease is divided into two subtypes, which shows marked ethinic variation, ...
The analysis and reduction of starch in sugarcane by silencing ADP-glucose pyrophosphorylase and over-expressing β-amylase

Ferreira, Stephanus Johannes (Stellenbosch : University of Stellenbosch, 2007-12)

Sugarcane is cultivated because of the high levels of sucrose it stores in its internodes. Starch metabolism has been a neglected aspect of sugarcane research despite the problems caused by it during sugarcane processing. ...
Analysis of dextrin dextranase from Gluconobacter oxydans

Van Wyk, Nathan (Stellenbosch : Stellenbosch University, 2008-12)

Dextran is a high value glucose polymer used in medicine and an array of laboratory techniques. It is synthesised by lactic-acid bacteria from sucrose but has also reportedly been produced by Gluconobacter oxydans (G. ...
Analysis of enzymes involved in starch phosphate metabolism

Samodien, Mugammad Ebrahim (Stellenbosch : University of Stellenbosch, 2009-12)

ENGLISH ABSTRACT: This project examined the role of proteins in starch phosphate metabolism. The first part was aimed at the functional characterization of the SEX4, LSF1 and LSF2 genes in both plants and bacteria. ...
Analysis of genes implicated in iron regulation in individuals presenting with primary iron overload in the South African population

Booley, Fadwah (Stellenbosch : University of Stellenbosch, 2007-03)

Hereditary haemochromatosis (HH), a common autosomal recessive disease, is characterized by increased iron absorption leading to progressive iron accumulation in organs such as the liver, heart and pancreas. In the South ...
Analysis of genetic variants in the 5’ regulatory region of the ALAS1 gene in South African patients with Variegate Porphyria (VP)

Du Plessis, Nelita (Stellenbosch : University of Stellenbosch, 2007-03)

The porphyrias are a group of genetic disorders arising from mutations in either one of the final seven genes encoding the haeme synthesis enzymes. These disease-causing mutations lead to an enzyme deficiency that disrupts ...
Analysis of intermediate carbon metabolism in strawberry plants

Basson, Carin Elizabeth (Stellenbosch : Stellenbosch University, 2008-12)

Strawberry (Fragaria x ananassa) fruit quality is largely determined by the relative amounts of sugars and organic acids present, as well as soluble solid content. This study had three components: 1) Characterisation of ...
Analysis of the effects of the plant growth promoting substances GR24 and smoke water on abiotically stressed Nicotiana benthamiana seedlings

Steenkamp, Letitia Elizabeth (Stellenbosch : Stellenbosch University, 2012-03)

ENGLISH ABSTRACT: Almost all processes during the life of a plant are affected by the environment. Changes in phytohormone, metabolite and protein levels follow in response to changes in the environment. Plant growth ...
Analysis of the role of relative nucleotide concentrations on the regulation of carbohydrate in higher plants

Boussiengui-Boussiengui, Gino (Stellenbosch : Stellenbosch University, 2010-12)

ENGLISH ABSTRACT: The current understanding of the regulation of carbohydrate accumulation is still under investigation despite the tremendous work done in this subject. Purine and pyrimidine nucleotides have been implicated ...
Approaches for the study of leaf carbohydrate metabolic compartmentation in arabidopsis thaliana

Fly, Richard Derek (Stellenbosch : University of Stellenbosch, 2010-12)

ENGLISH ABSTRACT: The study of plants on a sub-cellular level is an important, yet challenging area and its application allows for novel insight into the understanding of metabolism and its regulation. In this study I ...
Assessment of yield traits between family groups of the cultured abalone (Haliotis midae) in South Africa

Van Schalkwyk, Hester Josina (Stellenbosch : Stellenbosch University, 2012-03)

ENGLISH ABSTRACT: The abalone Haliotis midae is the most important aquaculture species in South Africa. The industry is dependent on export to Far Eastern markets in a variety of forms, including live, frozen, canned or ...
Association of genetic variants and the susceptibility to abnormal involuntary movements and tardive dyskinesia (TD) in Xhosa schizophrenia patients

Hitzeroth, Angelika (Stellenbosch : University of Stellenbosch, 2007-03)

No obvious explanations exist for the development of abnormal involuntary movements (AIM), but several hypotheses have been proposed for tardive dyskinesia (TD) development. Since TD seems to have a genetic basis, several ...
Biopolymer gene discovery and characterization using metagenomic libraries

Ohlhoff, Colin Walter (Stellenbosch : Stellenbosch University, 2008-12)

Traditional methods used for the discovery of novel genes have previously relied upon the ability to culture the relevant microbes and then demonstrate the activity of a specific enzyme. Although these methods have proved ...
Carbon turnover and sucrose metabolism in the culm of transgenic sugarcane producing 1-Kestose

Nicholson, Tarryn Louise (Stellenbosch : University of Stellenbosch, 2007-12)

Carbon partitioning was investigated in sugarcane (Saccharum spp. hybrids) that was genetically modified with sucrose: sucrose 1-fructosyltransferase (1-SST; EC 2.4.1.99) from Cynara scolymus. This enzyme catalyses the ...
A characterisation of genes involved in apoptosis resistance

Davis, Tanja (Stellenbosch : Stellenbosch University, 2013-03)

ENGLISH ABSTRACT: Apoptosis represents a finely orchestrated and highly conserved natural form of cell death. It exhibits unique morphological and biochemical characteristics which culminate in the controlled dismantling ...
Characterisation of novel TAC3 and TACR3 gene variants and polymorphisms in patients with pre-eclampsia

Stolk, Megan (Stellenbosch : University of Stellenbosch, 2007-03)

In South Africa, pre-eclampsia is the second highest cause of maternal deaths. The incidence of this disease in the Western Cape alone is 6.8% and places a large burden of health care facilities. The placenta and ...
Characterisation of sucrose synthase activity in the sugarcane culm

Schafer, Wolfgang Erich (Stellenbosch : University of Stellenbosch, 2004-04)

ENGLISH ABSTRACT: This study had three main goals: 1. to investigate the occurrence on the protein level of sucrose synthase (SuSy) isoforms in sugarcane sink tissue, 2. to determine the kinetic properties of these ...