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Theses and Dissertations (Biochemistry, Genetics and Microbiology (BGM))
Recent Submissions
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Du Plessis, Deanné
(University of Pretoria, 2024)
Fungal vascular wilt pathogens cause destructive diseases in many agriculturally important crop and
tree species. Many of these pathogens are soil-borne and enter their hosts via pre-existing structures,
or with the aid ...
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Modiba, Mateka Patience
(University of Pretoria, 2019-12)
The aim of this thesis was to determine the role played by oomycetes in plum tree decline observed in the Western Cape Province of South Africa from 2016-2018. At this time, extreme drought conditions were experienced in ...
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Ndhlovu, Khumbudzo
(University of Pretoria, 2019-06)
This Master’s dissertation reports about the screening and characterization of
selected alpha and beta rhizobial isolates from wild legumes in South Africa for their
nodulation and nitrogen fixation properties on the ...
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Sayari, Mohammad
(University of Pretoria, 2019-12)
Members of Ceratocystistidaceae (phylum Ascomycota, class Sordariomycetes) include fungal pathogens that cause diseases on a broad spectrum of hosts, leading to substantial economic losses globally. The objective of this ...
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Fitza, Katrin Nathalie Elsbeth
(University of Pretoria, 2019-09)
Biological control is an important management tool to deal with the rapidly increasing number of invasive pests of plantation forests globally. It is important to consider the genetic diversity of both the pest and biological ...
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Moyana, Sanele B.
(University of Pretoria, 2019-12)
The genus Methylobacterium includes a variety of pink pigmented and cream white facultatively methylotrophic bacteria that are characterized by their ability to mainly utilize methanol as a carbon source. Methylobacterium ...
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Joubert, Melissa
(University of Pretoria, 2019-12)
Phytophthora cinnamomi is an oomycete that targets a broad range of plants, including several economically important forestry and agricultural crops. It is the causal agent of Phytophthora Root Rot, and causes significant ...
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Mavima, Lazarus
(University of Pretoria, 2020-01)
Paraburkholderia tuberum is an indigenous South African bacterial species and one of the first rhizobia to be described in the class Beta-proteobacteria. In the past two decades, numerous strains identified as P. tuberum ...
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Wilson, Andrea Melissa
(University of Pretoria, 2019)
English: Many filamentous ascomycete fungi are capable of sexual reproduction, though the exact
mechanisms they use can differ from species to species. Those that require a compatible
partner are termed heterothallic, ...
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Yssel, Litia
(University of Pretoria, 2019-11)
African horse sickness virus (AHSV) is an orbivirus in the Reoviridae family that causes severe disease in horses, with major economic implications. The viral genome consists of ten double-stranded RNA segments, encoding ...
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Nagel, Jan Hendrik
(University of Pretoria, 2019-09)
The Botryosphaeriaceae is a large family of fungi including many plant pathogenic species that cause diseases of important plants such as fruit trees, grapevine, eucalypts, pines and wheat. Members of this family are ...
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Candotti, Julia
(University of Pretoria, 2019-12)
Eucalyptus is important for the forestry industry due to its excellent growth and wood properties. In
crop species, nested multi-parent populations have been used to increase the power and resolution of
quantitative trait ...
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Deng, Jun-Yin
(University of Pretoria, 2020-02)
South African forests have become fragmented due to both historical events and current human activities. Fragmentation may have increased population differentiation by reducing the gene flow between plants isolated in ...
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Backer, Robert
(University of Pretoria, 2019-12)
The global avocado industry has experienced significant growth throughout the past two decades, with annual production doubling over that time. However, increased production is accompanied by an ever-increasing threat from ...
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Pentz, Karina
(University of Pretoria, 2020-01)
When a trait enhances fitness and arose as a result of natural selection, it is termed an adaptation. The optimization strategy employs selection thinking which makes the explicit assumption that the globally best trait ...
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Pinard, Desré
(University of Pretoria, 2020-01)
Trees play a pivotal role in the global carbon cycle through the fixation and storage of
carbon as polysaccharide and phenolic biopolymers in the secondary cell walls of
xylem fibre cells (wood). Driven by the need to ...
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Zim, Nomakula Y.
(University of Pretoria, 2020-01)
In the mid-2000s an outbreak of bacterial blight and dieback caused by Xanthomonas
vasicola pv. vasculorum was observed on a single Eucalyptus grandis clone in
KwaZulu-Natal. It was suggested that this outbreak was as a ...
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Tchotet Tchoumi, James Michel
(University of Pretoria, 2019)
Addressing the concerns of microbial diseases affecting natural forests, particularly those caused by wood-rotting Basidiomycetes, is of paramount importance for the protection of these woody ecosystems. This is of particular ...
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Gricia, Alessandro Rino
(University of Pretoria, 2019-11)
Pectobacterium spp. together with Dickeya spp. belong to a group of soft rot disease causing pathogens known as the soft rot Enterobacteriaceae (SRE). Pectobacterium carotovorum subsp. brasiliense is an aggressive pathogen ...
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Venter, Anton
(University of Pretoria, 2019-11)
Bambara groundnut (Vigna subterranea L.) is an underutilised and under-researched legume crop which is an important source of protein and other nutrients, mainly in countries in sub-Saharan Africa. It is consumed in a wide ...
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