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06 December 2018 | Story Leonie Bolleurs | Photo Barend Nagel
Marcelle Vermeulen
Marcele Vermeulen, a graduate from the Department of Plant Sciences, explores possible threats to crop production; contributing to food security in South Africa.
Global food security is currently threatened both by climate change and the low diversity of crops relied on by humankind to feed a growing world population. Marcele Vermeulen, a graduate in the Department of Plant Sciences who will receive her PhD at the December graduation ceremonies at the University of the Free State (UFS), is part of a team that is working hard to add to the diversity of staple foods in South Africa.

In the drive to focus on alternative crops, Marcele is researching the crop, Amaranthus cruentus, (grain amaranth). It is more tolerant to environmental stress for large-scale production, thereby also diversifying staple crops.

Relatively new development

“Amaranthus cruentus is an excellent candidate due to its high nutritional value and tolerance to drought and high temperatures. It can be mixed with conventional maize meal, to increase the protein intake of its consumers,” said Marcele.

The production of A. cruentus as a grain crop in South Africa is a relatively new development.

In her research, exploring the possible threats to crop production and paying particular attention to dominant plant pathogens in the Amaranthus cruentus, Marcele found a correlation between fungal pathogens and insect pests. 

Insect pests can influence plant diseases

Although reports on fungal pathogens and pests specific to A. cruentus are limited to and information for South Africa is limited to this study, there is a possibility that by controlling insect pests such as weevils, one might also be able to control fungal pathogens of Amaranthus cruentus.

Marcele believes that control of weevil pests should thus be the focus of future pest and pathogen management strategies and breeding programmes in A. cruentus.  

“Knowledge gained in my thesis will hopefully aid in the development of future cultivation practices, integrated pest/pathogen management programmes, as well as for the registration of crop protection products for A. cruentus,” Marcele added.

Research Contributes to Food Security from University of the Free State on Vimeo.

News Archive

New Genetics building on Bloemfontein Campus spirals into new frontiers
2015-09-11

On Thursday 3 September 2015, the Department of Genetics hosted the official opening of its new offices on the Bloemfontein Campus of the University of the Free State (UFS).

Prof Jonathan Jansen, Vice-Chancellor and Rector of the UFS, Prof Neil Heideman, Dean of the Faculty of Natural and Agricultural Sciences, and Prof Paul Grobler, Head of the Department of Genetics cut the ribbon, symbolising the opening of this building with its state-of-the-art facilities.

The new genetics building boasts a new administration block with a reception area, seven offices, a small committee room, and a seminar room for 50 people. Furthermore, the undergraduate laboratory block provides a laboratory for 150 students. The research block has facilities for 30 researchers.

This building also hosts a chemical waste sorting and storage facility. This is a first for the university.

Several sites were investigated for the new building, but due to its size and envisaged second phase, a “green fields” site was found on the western side of the campus. The main entrance caters for visitors from the north, students on foot, and those using the parking area in front of the library. The secondary south entrance is for those who use the dedicated parking area south of the building. The link between these two entrances is the spine of the building, a helix with services/buildings spaced on either side. The helix will be extended in the second phase to keep the circulation and linkage of buildings as simple as possible.

In his opening speech, Prof Grobler gave a breakdown of the history of the Department of Genetics. Today, this department, which opened its doors at the UFS in 1960, is proud of its 131 students and 46 honours students.

According to Major-General Edward Ngokha, Head of the Forensic Science Laboratory, students who graduate from the UFS in the field of genetics make excellent employees. The Forensic Science Laboratory has employed 25 honours students since the BSc Honours degree in Genetics was implemented in 2010.

“The UFS delivers education of high quality and high standards. Thank you for your contribution toward fighting crime by delivering well-prepared, committed employees,” said Major-General Ngokha.

The department presents programmes on population conservation genetics, plant molecular genetics, cytogenetics, forensic genetics, forensic science, human genetics, and behavioural genetics.

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