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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

Training in critical medical skills receives preference at the UFS
2015-07-24

The UFS bought a new simulator for surgeons to learn how to perform laparoscopic operations. During the launch of the simulator, Dr Mathys Labuschagne (left), Head of the Clinical Simulation and Skills Unit, illustrates to Prof Gert van Zyl, Dean of the faculty, how the simulator works.
Photo: Rene-Jean van der Berg

The Clinical Simulation and Skills Unit in the University of the Free State (UFS) Faculty of Health Sciences purchased a new laparoscopic simulator for R1.2 million recently. The simulator will be used to teach postgraduate medical students how to perform laparoscopic surgery. The UFS is currently the only university in the country, and one of only two institutions in South Africa, that own such a simulator.

The Lapsim simulator, from Surgical Science in Sweden, is a highly sophisticated computerised tool for the training and improvement of laparoscopic surgical skills in postgraduate students within the surgical disciplines.

“The purpose of a simulator is not to replace training on patients, but to help registrars in acquiring basic laparoscopic surgical skills,” says Dr Mathys Labuschagne, Head of the Clinical Simulation and Skills Unit.

These skills include depth perception, hand-eye-coordination, instrument handling, precision and speed, which are essential before operations can be performed on patients.

Prof Gert van Zyl, Dean of the Faculty of Health Sciences, says this simulator is very important for the UFS to train registrars more effectively in theatre work.

“Not only registrars will benefit from this, but qualified surgeons may also make use of it to improve their skills.”

The simulator is pre-programmed for different medical conditions that laparoscopic surgery is traditionally used for. Programmes can be selected for procedures such as sterilisation, cholecystectomy (gall bladder removal), endometriosis, etc. The simulator even makes it possible simply to practise eye-hand coordination, and to apply stitches internally.

Watch the short video explaining more about the Lapsim simulator.

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